Re: [CentOS] Live Cd from custom install
On Wed, 2013-09-04 at 08:51 +0530, Rajagopal Swaminathan wrote: Greetings, I have installed Centos 6.4 minimal updated it and added some other package such as screen, man, rsync et. al. Now what is the best method to convert this to an installer CD and subsequently a live CD image. Google confuses me. Maybe you should try to do a search on kickstart live cd, and I think you may find something useful. -- Xinyun Zhou ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD iso
On Fri, 28 Dec 2012, John R Pierce wrote: On 12/28/2012 3:21 PM, James Freer wrote: You mean the bin DVD. Thing is with the DVD they are big for broadband download. I think i'd buy one. But i appreciate your advice. unless your broadband is metered, or really slow (and then should it be called broadband?), 4GB or whatever is really not that big of a deal. a few hours, perhaps. One thing i did learn with linux when i first started is that it's essential to have a spare PC to test a distro on first - then one can... or install it as a VM under VirtualBox or whatever. Thats certainly how *I* test stuff, and indeed, I put 16GB ram into my latest desktop PC just so I can run several substantial VMs as needed. In the UK most broadband providers offer 10GB. After a distro CD, several clips on Youtube, probably a fair bit of surfing - i find myself qualifying for a reminder on broadband usage! I've got two spare PCs so i've never looked at VM and certainly never had a PC capable of taking 16GB RAM. Current PC is only about 18 months old so i think i need to shop more carefully next time. many thanks - i'm off to explore Centos again. james ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD iso
On 12/29/2012 1:54 AM, James Freer wrote: I've got two spare PCs so i've never looked at VM and certainly never had a PC capable of taking 16GB RAM. Current PC is only about 18 months old so i think i need to shop more carefully next time. the new Intel Core i5 box I built last month can hold 32GB ram (4x8GB), I put 2x8GB in it. CPU is a I5-3570k, motherboard is Z77 based. 16gb of fast high grade memory was like US$59 my 2008 vintage Core2Duo box supported 8GB, that was plenty to run a 2-4GB VM as long as you aren't running /too/ much other stuff on the host OS concurrently. When I bought it, I only put 4GB in it. after upgrading my desktop system to the i5, I took the core2duo, put 8gb in it and set it up for my son (a college student), added a SSD as the main disk, and wow its fast now. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD iso
On 12/29/2012 09:54 AM, James Freer wrote: On Fri, 28 Dec 2012, John R Pierce wrote: On 12/28/2012 3:21 PM, James Freer wrote: You mean the bin DVD. Thing is with the DVD they are big for broadband download. I think i'd buy one. But i appreciate your advice. unless your broadband is metered, or really slow (and then should it be called broadband?), 4GB or whatever is really not that big of a deal. a few hours, perhaps. One thing i did learn with linux when i first started is that it's essential to have a spare PC to test a distro on first - then one can... or install it as a VM under VirtualBox or whatever. Thats certainly how *I* test stuff, and indeed, I put 16GB ram into my latest desktop PC just so I can run several substantial VMs as needed. In the UK most broadband providers offer 10GB. After a distro CD, several clips on Youtube, probably a fair bit of surfing - i find myself qualifying for a reminder on broadband usage! I've got two spare PCs so i've never looked at VM and certainly never had a PC capable of taking 16GB RAM. Current PC is only about 18 months old so i think i need to shop more carefully next time. many thanks - i'm off to explore Centos again. I'm with BT Infinity in the UK. Unmetered 75 MBps down 15 up. If servers are your thing, I picked up a Dell Poweredge 860 with 2 x Dual Core Xeons 8 GB's of RAM for £30 off eBay just before Xmas. You can, of course, run XWindows on it. It's a tad heavy on the gas (it's about 285W I think) but it's perfect for VMs. Have fun! Cheers, Phil... -- currently (ab)using CentOS 5.8 6.3, Debian Squeeze Wheezy, Fedora Beefy Spherical, Lubuntu 12.10, OS X Snow Leopard Ubuntu Precise Quantal ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD iso
On Sat, 29 Dec 2012, Phil Dobbin wrote: On 12/29/2012 09:54 AM, James Freer wrote: On Fri, 28 Dec 2012, John R Pierce wrote: On 12/28/2012 3:21 PM, James Freer wrote: You mean the bin DVD. Thing is with the DVD they are big for broadband download. I think i'd buy one. But i appreciate your advice. unless your broadband is metered, or really slow (and then should it be called broadband?), 4GB or whatever is really not that big of a deal. a few hours, perhaps. One thing i did learn with linux when i first started is that it's essential to have a spare PC to test a distro on first - then one can... or install it as a VM under VirtualBox or whatever. Thats certainly how *I* test stuff, and indeed, I put 16GB ram into my latest desktop PC just so I can run several substantial VMs as needed. In the UK most broadband providers offer 10GB. After a distro CD, several clips on Youtube, probably a fair bit of surfing - i find myself qualifying for a reminder on broadband usage! I've got two spare PCs so i've never looked at VM and certainly never had a PC capable of taking 16GB RAM. Current PC is only about 18 months old so i think i need to shop more carefully next time. many thanks - i'm off to explore Centos again. Hi Phil I'm with BT Infinity in the UK. Unmetered 75 MBps down 15 up. hmm - i think i need to have a word with BT! But i don't see how you can be unmetered and then 75 down and 15 up tbh. Bit more learning and exploring necessary. Nice to know someone on the list is fron the UK. If servers are your thing, I picked up a Dell Poweredge 860 with 2 x Dual Core Xeons 8 GB's of RAM for £30 off eBay just before Xmas. You can, of course, run XWindows on it. It's a tad heavy on the gas (it's about 285W I think) but it's perfect for VMs. It's something i want to learn about. My hands are rather full copying with my mother's Alzheimer's so i don't get enough time. I'll get back to you if that's ok maybe with some questions. Our LUG group never meet for 'workshops' so i don't have anyone to ask locally. I see you use several distros - Ubuntu (im)Precise i've given up on. yours james___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD iso
On 12/29/2012 11:08 PM, John R Pierce wrote: On 12/29/2012 1:54 AM, James Freer wrote: I've got two spare PCs so i've never looked at VM and certainly never had a PC capable of taking 16GB RAM. Current PC is only about 18 months old so i think i need to shop more carefully next time. the new Intel Core i5 box I built last month can hold 32GB ram (4x8GB), I put 2x8GB in it. CPU is a I5-3570k, motherboard is Z77 based. 16gb of fast high grade memory was like US$59 my 2008 vintage Core2Duo box supported 8GB, that was plenty to run a 2-4GB VM as long as you aren't running /too/ much other stuff on the host OS concurrently. When I bought it, I only put 4GB in it. after upgrading my desktop system to the i5, I took the core2duo, put 8gb in it and set it up for my son (a college student), added a SSD as the main disk, and wow its fast now. My most recent laptop, now 12 months old ( an ASUS i7 has 16 Gb of Ram, plus a 60Gb SSD for the OS) - I regularly run a VM with 2+Gb of Ram assigned, plus develop apps using MySql, php, apache and related systems and test these from the VM and the base CentOS 6.3 system under some load. As mentioned, RAM is cheap and the benefits of having it available are well utilised by CentOS and VMs. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD iso
On 12/29/2012 10:46 AM, James Freer wrote: On Sat, 29 Dec 2012, Phil Dobbin wrote: On 12/29/2012 09:54 AM, James Freer wrote: On Fri, 28 Dec 2012, John R Pierce wrote: On 12/28/2012 3:21 PM, James Freer wrote: You mean the bin DVD. Thing is with the DVD they are big for broadband download. I think i'd buy one. But i appreciate your advice. unless your broadband is metered, or really slow (and then should it be called broadband?), 4GB or whatever is really not that big of a deal. a few hours, perhaps. One thing i did learn with linux when i first started is that it's essential to have a spare PC to test a distro on first - then one can... or install it as a VM under VirtualBox or whatever. Thats certainly how *I* test stuff, and indeed, I put 16GB ram into my latest desktop PC just so I can run several substantial VMs as needed. In the UK most broadband providers offer 10GB. After a distro CD, several clips on Youtube, probably a fair bit of surfing - i find myself qualifying for a reminder on broadband usage! I've got two spare PCs so i've never looked at VM and certainly never had a PC capable of taking 16GB RAM. Current PC is only about 18 months old so i think i need to shop more carefully next time. many thanks - i'm off to explore Centos again. Hi Phil I'm with BT Infinity in the UK. Unmetered 75 MBps down 15 up. hmm - i think i need to have a word with BT! But i don't see how you can be unmetered and then 75 down and 15 up tbh. Bit more learning and exploring necessary. Nice to know someone on the list is fron the UK. If servers are your thing, I picked up a Dell Poweredge 860 with 2 x Dual Core Xeons 8 GB's of RAM for £30 off eBay just before Xmas. You can, of course, run XWindows on it. It's a tad heavy on the gas (it's about 285W I think) but it's perfect for VMs. It's something i want to learn about. My hands are rather full copying with my mother's Alzheimer's so i don't get enough time. I'll get back to you if that's ok maybe with some questions. Our LUG group never meet for 'workshops' so i don't have anyone to ask locally. I see you use several distros - Ubuntu (im)Precise i've given up on. If you're with BT Broadband, you can upgrade to Infinity free of charge (dependent, of course, if it's available in your area) it's only about a fiver extra a month on the bill. It's very cheap. By all means, if you need anything, just email me. No problem. Cheers, Phil... -- currently (ab)using CentOS 5.8 6.3, Debian Squeeze Wheezy, Fedora Beefy Spherical, Lubuntu 12.10, OS X Snow Leopard Ubuntu Precise Quantal ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD iso
On 12/29/2012 2:46 AM, James Freer wrote: I'm with BT Infinity in the UK. Unmetered 75 MBps down 15 up. hmm - i think i need to have a word with BT! But i don't see how you can be unmetered and then 75 down and 15 up tbh. Bit more learning and exploring necessary. Nice to know someone on the list is fron the UK. I believe he meant his SPEEDS are 75Mbit/sec and 15Mbit/sec, not data caps. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD iso
On 12/29/2012 09:37 PM, John R Pierce wrote: On 12/29/2012 2:46 AM, James Freer wrote: I'm with BT Infinity in the UK. Unmetered 75 MBps down 15 up. hmm - i think i need to have a word with BT! But i don't see how you can be unmetered and then 75 down and 15 up tbh. Bit more learning and exploring necessary. Nice to know someone on the list is fron the UK. I believe he meant his SPEEDS are 75Mbit/sec and 15Mbit/sec, not data caps. Correct, I do mean speeds. As for data caps, it's advertised as unlimited Nagios is telling me I have 17 machines on the local network more than a couple of those are heavy hitters I've never been capped or emailed to cut it out (I've also got a wife three kids who game heavily every night). True, there is a very minimal throttling that happens sometimes at peak hours between about 18:00 21:00 very occasionally but it's negligible. All in all, I'm very, very happy with the service. Cheers, Phil... -- currently (ab)using CentOS 5.8 6.3, Debian Squeeze Wheezy, Fedora Beefy Spherical, Lubuntu 12.10, OS X Snow Leopard Ubuntu Precise Quantal ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD iso
On Saturday 29 December 2012, James Freer jessejazza3...@gmail.com wrote: In the UK most broadband providers offer 10GB. Obviously, I'm not familiar with the market in the UK, but here in Canada, many ISPs offer a basic or beginner package with 10 GB or 25 GB. For a few dollars more, you can have 50 GB, which is obviously worth it. For example, I see that BT's Broadband package costs 13 pounds and gives you 10 GB, and that the More Broadband package costs 18 pounds and gives you 40 GB. -- Yves Bellefeuille y...@storm.ca Simply put, E=mc^2 is liberal claptrap. -- Conservapedia.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD iso
On 12/30/2012 12:22 AM, Yves Bellefeuille wrote: On Saturday 29 December 2012, James Freer jessejazza3...@gmail.com wrote: In the UK most broadband providers offer 10GB. Obviously, I'm not familiar with the market in the UK, but here in Canada, many ISPs offer a basic or beginner package with 10 GB or 25 GB. For a few dollars more, you can have 50 GB, which is obviously worth it. For example, I see that BT's Broadband package costs 13 pounds and gives you 10 GB, and that the More Broadband package costs 18 pounds and gives you 40 GB. Have a look at: http://www.productsandservices.bt.com/products/broadband/infinity you'll find the unlimited (i.e. uncapped data) package there along with speeds of up to 160 MBps down 20 MBps up. Cheers, Phil... -- currently (ab)using CentOS 5.8 6.3, Debian Squeeze Wheezy, Fedora Beefy Spherical, Lubuntu 12.10, OS X Snow Leopard Ubuntu Precise Quantal ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD iso
On 12/28/2012 08:28 PM, James Freer wrote: Hi folks I'm just about to start using Centos again. I used it briefly a couple of years ago but found the switch to rpm a bit much after using deb for 5 years. Now there seem to be a lot of changes on the deb front so i'm going to try again with rpm. I noticed that there is now a live CD (as well as the DVD) instead of the six CDs that i used before (iirc). I would just be grateful if someone could confirm that... i've been an xfce user so i was thinking that i've either got to go back to gnome and load the xfce desktop or use the DVD (and install xfce straight). Download the netinstall choose your window manager. Save you a lot of time. Cheers, Phil... -- currently (ab)using CentOS 5.8 6.3, Debian Squeeze Wheezy, Fedora Beefy Spherical, Lubuntu 12.10, OS X Snow Leopard Ubuntu Precise Quantal ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD iso
On Fri, 28 Dec 2012, Phil Dobbin wrote: On 12/28/2012 08:28 PM, James Freer wrote: Hi folks I'm just about to start using Centos again. I used it briefly a couple of years ago but found the switch to rpm a bit much after using deb for 5 years. Now there seem to be a lot of changes on the deb front so i'm going to try again with rpm. I noticed that there is now a live CD (as well as the DVD) instead of the six CDs that i used before (iirc). I would just be grateful if someone could confirm that... i've been an xfce user so i was thinking that i've either got to go back to gnome and load the xfce desktop or use the DVD (and install xfce straight). Download the netinstall choose your window manager. Save you a lot of time. Cheers, Phil... Ah many thanks. I read about the minimal install and thought that's what i could use - thought better of it and chose the liveCD. I wasn't sure about the netinstall... but i've found since receiving your email a how-to and it seems quite clear. Seems Centos has changed quite a bit from what i remember. There wasn't a liveCD and i installed from 6 CDs... which was a lot of downloading (easier to buy the DVD really). james ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD iso
Phil Dobbin wrote: Download the netinstall choose your window manager. Save you a lot of time. My advice is different: download the regular DVD (not the live DVD) and use it to install. The first disk is sufficient. The reason I have a different opinion is because netinstall is too minimal, especially if you're not familiar with CentOS, and installing with the live CD or DVD is too inflexible. Use the regular DVD instead. Yves Bellefeuille ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD iso
On Fri, Dec 28, 2012 at 10:53 PM, Yves Bellefeuille y...@storm.ca wrote: Phil Dobbin wrote: Download the netinstall choose your window manager. Save you a lot of time. My advice is different: download the regular DVD (not the live DVD) and use it to install. The first disk is sufficient. The reason I have a different opinion is because netinstall is too minimal, especially if you're not familiar with CentOS, and installing with the live CD or DVD is too inflexible. Use the regular DVD instead. Yves Bellefeuille You mean the bin DVD. Thing is with the DVD they are big for broadband download. I think i'd buy one. But i appreciate your advice. One thing i did learn with linux when i first started is that it's essential to have a spare PC to test a distro on first - then one can use the main PC to email on if in trouble! I'll explore and test things out over the next few days. I had a good look at many distros 3 years ago and the only one's i liked were *buntu family and Centos. james ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD iso
On 12/28/2012 3:21 PM, James Freer wrote: You mean the bin DVD. Thing is with the DVD they are big for broadband download. I think i'd buy one. But i appreciate your advice. unless your broadband is metered, or really slow (and then should it be called broadband?), 4GB or whatever is really not that big of a deal. a few hours, perhaps. One thing i did learn with linux when i first started is that it's essential to have a spare PC to test a distro on first - then one can... or install it as a VM under VirtualBox or whatever. Thats certainly how *I* test stuff, and indeed, I put 16GB ram into my latest desktop PC just so I can run several substantial VMs as needed. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD boot for KVM guest. How?
On Thu, Oct 20, 2011 at 1:52 PM, Müfit Eribol h...@onart.com.tr wrote:
Just for learning, could you please provide some more info about booting
up the LiveCD ISO image (uploaded to the host) to work on a guest? How
is the command line?
Invoking kvm (qemu-kvm) from the CLI:
kvm \
-boot d \
-cdrom /path/name/to/liveCD/iso/file \
-drive file=${IMG_FILE},index=0,boot=off \
[other kvm command line options like networking]
where IMG_FILE=/path/to/VM/image/file
I use System Rescue CD for the CD ROM. It does have XFCE GUI support
+ GParted. A simple startx fires up a XFCE desktop and voila you can
use the Graphical GParted utility on the VM hard disk.
HTH
-- Arun Khan
___
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Re: [CentOS] Live CD boot for KVM guest. How?
On 19.10.2011 21:07, Ljubomir Ljubojevic wrote: Vreme: 10/19/2011 06:34 PM, Müfit Eribol piše: Hi, My host and guest are CentOS 6. The guest is going to be a web server in production. I am trying to resize (extend) of the base partition of my guest. But I can of course start the installation of CentOS 6 guest all over again with a larger image size. However, just for the sake of better understanding I an trying to solve things not to be end up in a dead end after some years. 1. I created a guest CentOS 6 with 12G total disk (on a iscsi drive). No Desktop, just for terminal use. No LVM, just a simple basic partitioning. 2. Later I wanted to increase the size of total image to 200G. 3. I managed to resize the image to 200G on my iscsi drive. So, there is 188G unallocated/unformatted volume within the guest image. Now, the hardest part. I have to resize the partition. I have been trying to find a way to do that. A search on Google showed that GParted is tool to do that. I had to install all Desktop and X as Gparted is a GUI tool. Installed vncserver. Then, I found out that GParted can not resize the live guest. So, I downloaded GParted Live CD. Now, the questions: 1. If it was a physical machine I would boot from the CD. If I can boot it from host CDROM but then how should I operate on a specific guest? What is the easiest way to access GUI of the guest if I boot from Live CD. 2. I am wondering if a simple LVM route at the beginning would be preferred. Changing size of the iscsi volume on my NAS is easy. I thought there was no need for more complication, so went with basic /boot / and swap partitions. Is resizing partitions for LVM easier than basic partitioning (without LVM)? 3. Is there a specific tool in KVM suit which performs resizing partition within the image? Or as I prefer command line tools, is there a way to achieve resizing without any graphical tool like GParted? With GParted I had to install all the X and Gnome files, vncserver which otherwise I don't need. I would appreciate any information/hint/experience. All the best. Hi. My view is: a) Use LVM so you can manipulate size of partition(s). Resizing etx4 partitions is horrible job, long and dangerous. b) You can mount ISO image file of any CD via Guests VirtualCD, no need to mess with physical CD/DVD drives. There is System Rescue CD, CentOS LiveCD (I have one 5.3 with mdadm raid support and bunch of tools,I will soon be making 6.1 version) or Hiren's Boot CD - Parted. Root partition needs offline resize since extX partitions can not be mounted at the time of the resizing. c) All text-based resize tools require higher knowledge and/or experience, like alignment to sectors and similar mambo-jumbo. When you need to make it happen on production server without experimentation and you have done it only once 3 years ago it IS mambo-jumbo. d) As far as I know, KVM can not mount virtual hard drives, so meesing with them is not an option, unless you use raw partition on the Host (still haven't tried it). It is good to know at the very beginning that LVM is the way to go. So, I am reinstalling the server with LVM. It is good to know about it so early. Just for learning, could you please provide some more info about booting up the LiveCD ISO image (uploaded to the host) to work on a guest? How is the command line? Thank you for your kind help. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD boot for KVM guest. How?
On 19.10.2011 23:12, Theo Band wrote: On 10/19/2011 08:15 PM, John R Pierce wrote: On 10/19/11 9:34 AM, Müfit Eribol wrote: My host and guest are CentOS 6. The guest is going to be a web server in production. I am trying to resize (extend) of the base partition of my guest. But I can of course start the installation of CentOS 6 guest all over again with a larger image size. However, just for the sake of better understanding I an trying to solve things not to be end up in a dead end after some years. rather than resizing the system 'drive', I woudl have simply created ANOTHER logical drive mapped to the guest, and create a new file system on it, moving the stuff thats filling up your base disk (/home ? /var/www ?) to it, then remounting it as the 'new' /home or /var/www or whatever Agree. But if your system disk is now bigger, you can also create a new partition (even while the system is live) and use this new partition. And I would still use LVM for this new partition. This does not really add much complexity. It does add a lot of flexibility. The steps are: parted /dev/sda mkpart p ext2start stop pvcreate /dev/sda2 (your new second new partition?) vgcreate vg /dev/sda2 lvcreate vg -n test -L 10G mkfs.ext4 /dev/vg/test The volume group does not need to be assigned completely and leaves some room to carve new partitions in the future. Also the snapshot feature allows to create consistent backups if needed. I even think you can used parted to change you system partition. Simply delete the partition and recreate with the exact same starting sector. One mistake and you will loose a lot though, so why would you even try? Theo ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos Thank you for your support. I perfectly understand that LVM is the way to go. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD boot for KVM guest. How?
Vreme: 10/20/2011 10:22 AM, Müfit Eribol piše: On 19.10.2011 21:07, Ljubomir Ljubojevic wrote: Vreme: 10/19/2011 06:34 PM, Müfit Eribol piše: Hi, My host and guest are CentOS 6. The guest is going to be a web server in production. I am trying to resize (extend) of the base partition of my guest. But I can of course start the installation of CentOS 6 guest all over again with a larger image size. However, just for the sake of better understanding I an trying to solve things not to be end up in a dead end after some years. 1. I created a guest CentOS 6 with 12G total disk (on a iscsi drive). No Desktop, just for terminal use. No LVM, just a simple basic partitioning. 2. Later I wanted to increase the size of total image to 200G. 3. I managed to resize the image to 200G on my iscsi drive. So, there is 188G unallocated/unformatted volume within the guest image. Now, the hardest part. I have to resize the partition. I have been trying to find a way to do that. A search on Google showed that GParted is tool to do that. I had to install all Desktop and X as Gparted is a GUI tool. Installed vncserver. Then, I found out that GParted can not resize the live guest. So, I downloaded GParted Live CD. Now, the questions: 1. If it was a physical machine I would boot from the CD. If I can boot it from host CDROM but then how should I operate on a specific guest? What is the easiest way to access GUI of the guest if I boot from Live CD. 2. I am wondering if a simple LVM route at the beginning would be preferred. Changing size of the iscsi volume on my NAS is easy. I thought there was no need for more complication, so went with basic /boot / and swap partitions. Is resizing partitions for LVM easier than basic partitioning (without LVM)? 3. Is there a specific tool in KVM suit which performs resizing partition within the image? Or as I prefer command line tools, is there a way to achieve resizing without any graphical tool like GParted? With GParted I had to install all the X and Gnome files, vncserver which otherwise I don't need. I would appreciate any information/hint/experience. All the best. Hi. My view is: a) Use LVM so you can manipulate size of partition(s). Resizing etx4 partitions is horrible job, long and dangerous. b) You can mount ISO image file of any CD via Guests VirtualCD, no need to mess with physical CD/DVD drives. There is System Rescue CD, CentOS LiveCD (I have one 5.3 with mdadm raid support and bunch of tools,I will soon be making 6.1 version) or Hiren's Boot CD - Parted. Root partition needs offline resize since extX partitions can not be mounted at the time of the resizing. c) All text-based resize tools require higher knowledge and/or experience, like alignment to sectors and similar mambo-jumbo. When you need to make it happen on production server without experimentation and you have done it only once 3 years ago it IS mambo-jumbo. d) As far as I know, KVM can not mount virtual hard drives, so meesing with them is not an option, unless you use raw partition on the Host (still haven't tried it). It is good to know at the very beginning that LVM is the way to go. So, I am reinstalling the server with LVM. It is good to know about it so early. Just for learning, could you please provide some more info about booting up the LiveCD ISO image (uploaded to the host) to work on a guest? How is the command line? Thank you for your kind help. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos Sorry, I do not use command line for KVM. I use my Desktop to connect to Servers KVM Domain: Virtual Machine Manager - File - Add New Connection - Fill: Hipervisor: QEMU/KVM; Connect to remote host; Metod: SSHl username + password; Hostname: xxx And you should have full access to your servers KVM domain. But even if you need to use command line, I am sure you will be able to find it by googling for kvm linux boot from cd command line. Also check out CentOS-virt mailing list Archive (on this same mailing list server). http://www.linux-kvm.org is official site for KVM. -- Ljubomir Ljubojevic (Love is in the Air) PL Computers Serbia, Europe Google is the Mother, Google is the Father, and traceroute is your trusty Spiderman... StarOS, Mikrotik and CentOS/RHEL/Linux consultant ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD boot for KVM guest. How?
Vreme: 10/19/2011 06:34 PM, Müfit Eribol piše: Hi, My host and guest are CentOS 6. The guest is going to be a web server in production. I am trying to resize (extend) of the base partition of my guest. But I can of course start the installation of CentOS 6 guest all over again with a larger image size. However, just for the sake of better understanding I an trying to solve things not to be end up in a dead end after some years. 1. I created a guest CentOS 6 with 12G total disk (on a iscsi drive). No Desktop, just for terminal use. No LVM, just a simple basic partitioning. 2. Later I wanted to increase the size of total image to 200G. 3. I managed to resize the image to 200G on my iscsi drive. So, there is 188G unallocated/unformatted volume within the guest image. Now, the hardest part. I have to resize the partition. I have been trying to find a way to do that. A search on Google showed that GParted is tool to do that. I had to install all Desktop and X as Gparted is a GUI tool. Installed vncserver. Then, I found out that GParted can not resize the live guest. So, I downloaded GParted Live CD. Now, the questions: 1. If it was a physical machine I would boot from the CD. If I can boot it from host CDROM but then how should I operate on a specific guest? What is the easiest way to access GUI of the guest if I boot from Live CD. 2. I am wondering if a simple LVM route at the beginning would be preferred. Changing size of the iscsi volume on my NAS is easy. I thought there was no need for more complication, so went with basic /boot / and swap partitions. Is resizing partitions for LVM easier than basic partitioning (without LVM)? 3. Is there a specific tool in KVM suit which performs resizing partition within the image? Or as I prefer command line tools, is there a way to achieve resizing without any graphical tool like GParted? With GParted I had to install all the X and Gnome files, vncserver which otherwise I don't need. I would appreciate any information/hint/experience. All the best. Hi. My view is: a) Use LVM so you can manipulate size of partition(s). Resizing etx4 partitions is horrible job, long and dangerous. b) You can mount ISO image file of any CD via Guests VirtualCD, no need to mess with physical CD/DVD drives. There is System Rescue CD, CentOS LiveCD (I have one 5.3 with mdadm raid support and bunch of tools,I will soon be making 6.1 version) or Hiren's Boot CD - Parted. Root partition needs offline resize since extX partitions can not be mounted at the time of the resizing. c) All text-based resize tools require higher knowledge and/or experience, like alignment to sectors and similar mambo-jumbo. When you need to make it happen on production server without experimentation and you have done it only once 3 years ago it IS mambo-jumbo. d) As far as I know, KVM can not mount virtual hard drives, so meesing with them is not an option, unless you use raw partition on the Host (still haven't tried it). -- Ljubomir Ljubojevic (Love is in the Air) PL Computers Serbia, Europe Google is the Mother, Google is the Father, and traceroute is your trusty Spiderman... StarOS, Mikrotik and CentOS/RHEL/Linux consultant ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD boot for KVM guest. How?
On 10/19/11 9:34 AM, Müfit Eribol wrote: My host and guest are CentOS 6. The guest is going to be a web server in production. I am trying to resize (extend) of the base partition of my guest. But I can of course start the installation of CentOS 6 guest all over again with a larger image size. However, just for the sake of better understanding I an trying to solve things not to be end up in a dead end after some years. rather than resizing the system 'drive', I woudl have simply created ANOTHER logical drive mapped to the guest, and create a new file system on it, moving the stuff thats filling up your base disk (/home ? /var/www ?) to it, then remounting it as the 'new' /home or /var/www or whatever -- john r pierceN 37, W 122 santa cruz ca mid-left coast ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD boot for KVM guest. How?
On 10/19/2011 08:15 PM, John R Pierce wrote: On 10/19/11 9:34 AM, Müfit Eribol wrote: My host and guest are CentOS 6. The guest is going to be a web server in production. I am trying to resize (extend) of the base partition of my guest. But I can of course start the installation of CentOS 6 guest all over again with a larger image size. However, just for the sake of better understanding I an trying to solve things not to be end up in a dead end after some years. rather than resizing the system 'drive', I woudl have simply created ANOTHER logical drive mapped to the guest, and create a new file system on it, moving the stuff thats filling up your base disk (/home ? /var/www ?) to it, then remounting it as the 'new' /home or /var/www or whatever Agree. But if your system disk is now bigger, you can also create a new partition (even while the system is live) and use this new partition. And I would still use LVM for this new partition. This does not really add much complexity. It does add a lot of flexibility. The steps are: parted /dev/sda mkpart p ext2 start stop pvcreate /dev/sda2 (your new second new partition?) vgcreate vg /dev/sda2 lvcreate vg -n test -L 10G mkfs.ext4 /dev/vg/test The volume group does not need to be assigned completely and leaves some room to carve new partitions in the future. Also the snapshot feature allows to create consistent backups if needed. I even think you can used parted to change you system partition. Simply delete the partition and recreate with the exact same starting sector. One mistake and you will loose a lot though, so why would you even try? Theo ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD problems
Instead of unmounting the partition try using 'mount -o rw,remount ', I dont use the live CD much, but unless you screwup the rw, remount, or the path to the mounted partition it should either remount the partition properly or error that you didnt point to the correct path. I have rarely had issues with remount so it sounds like it would get around your issue. -- Trevor Benson dCAP, LPIC-1, CLA, Network+, MCP, CNA A1 Networks - Network Engineer DID (707)703-1041 FAX (707)703-1983 On Jun 30, 2010, at 4:43 PM, drew einhorn wrote: Hi, I'm trying to repair a remote system using the Live CD. I have VPN access to the subnet where it lives. An onsite person is booting from cd, and running a small script I provided to tweak the default firewall rule set to allow incoming ssh, and set a password for the centos user and start sshd so far so good I can remotely access the system. the problem is the live cd environment is very fragile. I need to rebuild the contents of a couple filesystems, so I need to umount them and remount them rw. If I make a mistake in a mount command instead of giving an error message and letting me try again. The system freezes and any other ssh session freezes, ahnd will not accept any more incoming ssh connections. the only way I have found to recover is have the onsite person reboot from cd and rerun the script allowing incoming ssh again. Hmm. I should try to talk the onsite person through trying something else from the console. Argghhh!!! This is more than just an annoyance. -- Drew Einhorn You can see a lot by just looking. -- Yogi Berra ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD?
On Tue, 2008-06-03 at 11:51 -0700, MHR wrote: I just used a Live CD for the first time today, in part to show what CentOS can do for a co-worker who is looking at using it at work and home, but I got the strangest result. snip Mark: First, I believe that you should always TYS (Test Your Stuff). You were very lucky the demo was for a colleague and not for your Manager or his/her boss! Test what you do, as much as is possible, so others do not catch your mistakes! TYS... There are reasons for VV (Verification and Validation), Design Walk Through, etc. The earlier mistakes are found, the easier it is to fix them. I have a Live CD for an earlier version of CentOS and we have one old box (Firewall/Router backup) it will not run on. I believe that's because of a video problem. The Live CD's have a number of uses, which include: (a) Being able to Rescue a box that has bad problems. They usually have many utilities on them (b) That one can see if the regular Installation will fly on the HW, before actually trying to install. (c) You can take a Live CD with you to a store, if you are contemplating buying a box, and see if Linux will run on it (d) I plan to take a Knoppix Live CD with me, when I travel, so if I need to use a Public box, I can boot Knoppix, do whatever I need to do, and not leave a footprint. The Knoppix Live CD has been recommended here on this ML and is very popular. In your case, the CentOS Live CD was a better choice, since your colleague is interested in using CentOS (a great idea). Seems like you have a TEAC burner. Someone here on this list, last year, told me that he does not like them. I personally will not buy any more TEAC drives, because recently, I learned they did not have Diagnostics for my CD-RW drive. It went into the trash. Drives that we have had good luck with include: Samsung, SONY LG. Other's probably work just as well. We have other TEAC drives, but they are the last TEAC drives we will purchase. The CD-R media I usually buy are Imation or Verbatim. Never had a problem. There are probably other brands equally good. When I burned the Knoppix Live CDs, K3B burned them at a high speed as I recall, but, as has been suggested in prior responses, throttling back on the speed probably greatly increases the chance of getting a good burn. K3B checks the MD5 sum, as I recall, when it begins the process. HTH, Lanny ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD?
On Friday 06 June 2008 13:20:02 Lanny Marcus wrote: Drives that we have had good luck with include: Samsung, SONY LG. Other's probably work just as well. We have other TEAC drives, but they are the last TEAC drives we will purchase. I would add Lite-On to the list. I've had several, including a stand-alone DVD recorder, and been highly satisfied with them. The CD-R media I usually buy are Imation or Verbatim. Never had a problem. There are probably other brands equally good. Memorex to a range that they call Memorex Professional - about 10% more expensive than their basic range. I've found that I can let K3B run full-tilt on them, doing a fast burn and getting good results. Prior to finding them I always had to throttle back. When I burned the Knoppix Live CDs, K3B burned them at a high speed as I recall, but, as has been suggested in prior responses, throttling back on the speed probably greatly increases the chance of getting a good burn. K3B checks the MD5 sum, as I recall, when it begins the process. The only problem with K3B is that on some installations it ejects the disk after the burn, then fails to pull it in again for the verify, so that you have to manually run md5sum or sha1sum to check it. Anne signature.asc Description: This is a digitally signed message part. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD?
On Fri, Jun 6, 2008 at 5:38 AM, Anne Wilson [EMAIL PROTECTED] wrote: On Friday 06 June 2008 13:20:02 Lanny Marcus wrote: Drives that we have had good luck with include: Samsung, SONY LG. Other's probably work just as well. We have other TEAC drives, but they are the last TEAC drives we will purchase. I would add Lite-On to the list. I've had several, including a stand-alone DVD recorder, and been highly satisfied with them. Actually, I said (and it's true) that the burner was a Pioneer DVD +/-RW DL 18x, with which I have so far had pretty good luck. It turns out that the image was bad, which I missed The reader is a Teac CD-540E CD drive, but the original iso image that came down was no good. The CD-R media I usually buy are Imation or Verbatim. Never had a problem. There are probably other brands equally good. Memorex to a range that they call Memorex Professional - about 10% more expensive than their basic range. I've found that I can let K3B run full-tilt on them, doing a fast burn and getting good results. Prior to finding them I always had to throttle back. I'm somewhat fond of TDK, but their newer, high-speed (16x+) DVDs have been pretty iffy for me - the old ones (4x), and their CDs, are rock solid, and the newer Memorex and Sony discs have been fairly reliable for me (but Costco only carries TDK - foo). Thanks. mhr ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD?
The CD-R media I usually buy are Imation or Verbatim. Never had a problem. There are probably other brands equally good. Memorex to a range that they call Memorex Professional - about 10% more expensive than their basic range. I've found that I can let K3B run full-tilt on them, doing a fast burn and getting good results. Prior to finding them I always had to throttle back. I'm somewhat fond of TDK, but their newer, high-speed (16x+) DVDs have been pretty iffy for me - the old ones (4x), and their CDs, are rock solid, and the newer Memorex and Sony discs have been fairly reliable for me (but Costco only carries TDK - foo). TDK, Memorex, Imation, Verbatim, I don't believe ANY of those actually make their own disks. My TDK's have a media code of CMC MAG. AM3, which is, I believe, CMC Magnetics, a middle grade disk, OK but not great.Note that there's some OTHER CMC disks which are apparently pure garbage.These AM3 code disks can be found with Ricoh, , Memorex, Staples, and god knows how many other brands on the label. And, a different label of TDK disk might be from a different pressing plant. that said, I've burned 100s and 100s of the Costco 16X TDK CMC MAG. AM3 DVDs with very very few problems. I've had several DVD burners, currently mostly using a Pioneer DVR-112D (16x DL), previously I had a Sony that was really a rebranded LiteOn, but after a couple years of heavy use, it started getting too many burn errors, so I retired it. I have noted that DVD video is best burned at 8X, which is a CLV mode (16X is a CAV mode), as the error rate goes up considerably on the last 20% or so of the disk when it actually hits the 16X speeds, too many of my 16X burned home videos have glitches near the end.. 16X CAV burns actually average about 11X, so its really not that much slower to burn 8X overall. I've also found my computers are much less fussier about the disks than regular DVD players. Supposedly, disks by Taiyo Yuden are the best, these are often sold as That's DVD These guys have extensive reasonably technical evaluations of burners and media, http://www.cdrinfo.com/Sections/Reviews/Home.aspx?CategoryId=1 they actually do error rate plots on every disk, and try different drives with many different media types. Reading too much of this can be depressing, when you realize just how marginal all this stuff actually is :) ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD?
On Friday 06 June 2008 20:12:57 John R Pierce wrote: TDK, Memorex, Imation, Verbatim, I don't believe ANY of those actually make their own disks. I understand that there are only two or three manufacturers and that the 'brands' may well buy from more than one of them. I did quite a lot of reading about this at one time, and it seems that the output of some factories is less reliable than the output of other factories. It all comes down to qa, and I suspect that's what the extra 10% pays for in Memorex's Professional range. Anne signature.asc Description: This is a digitally signed message part. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD?
On Fri, Jun 6, 2008 at 12:12 PM, John R Pierce [EMAIL PROTECTED] wrote: TDK, Memorex, Imation, Verbatim, I don't believe ANY of those actually make their own disks. My TDK's have a media code of CMC MAG. AM3, which is, I believe, CMC Magnetics, a middle grade disk, OK but not great.Note that there's some OTHER CMC disks which are apparently pure garbage.These AM3 code disks can be found with Ricoh, , Memorex, Staples, and god knows how many other brands on the label. And, a different label of TDK disk might be from a different pressing plant. Hmm - sounds like we need a corollary to Nero's InfoTool for Linux to get at that that said, I've burned 100s and 100s of the Costco 16X TDK CMC MAG. AM3 DVDs with very very few problems. I've had several DVD burners, currently mostly using a Pioneer DVR-112D (16x DL), previously I had a Sony that was really a rebranded LiteOn, but after a couple years of heavy use, it started getting too many burn errors, so I retired it. I used to have a couple of Emprex burners - I forget who _really_ made them - that were quite nice despite being a junk brand from Fry's. The 4x burner was slow but reliable, and the 16x burner was fast and could burn DVDs that read in DVD players and most other PC drives if the discs were burned at 12x (not 16x). Unfortuantely, both of them are now history, having died long before my time. I had a Hammer 18x drive that was really a Panasonic, but it didn't have all the speeds, and it died long before my Emprex 16x, even though it was about a year newer. I now have a Pioneer 18x burner that's pretty decent (although I haven't gotten it past 12x for DVDs and 40x for CDs), and a Samsung (i.e., Toshiba-Samsung) 20x drive that, so far, hasn't burned one DVD above 2.4x, or one that was any good in any drive, including itself. (I need to get some tech support for that one - blecch!) I have noted that DVD video is best burned at 8X, which is a CLV mode (16X is a CAV mode), as the error rate goes up considerably on the last 20% or so of the disk when it actually hits the 16X speeds, too many of my 16X burned home videos have glitches near the end.. 16X CAV burns actually average about 11X, so its really not that much slower to burn 8X overall. I've also found my computers are much less fussier about the disks than regular DVD players. I agree 100%. Supposedly, disks by Taiyo Yuden are the best, these are often sold as That's DVD Never heard of them - where do you find these? HTH mhr PS: w.r.t. the original topic here, I pulled down a new LiveCD iso image, and this one passed the md5sum. I used K3B here at work to burn two of them. Both completed the burn but the verification failed, so I mounted the iso file as a loop drive and compared all the files - fine. Booted from the CD - fine. Looks okay to me. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD?
On Fri, 2008-06-06 at 12:50 -0700, MHR wrote: On Fri, Jun 6, 2008 at 12:12 PM, John R Pierce [EMAIL PROTECTED] wrote: TDK, Memorex, Imation, Verbatim, I don't believe ANY of those actually make their own disks. My TDK's have a media code of CMC MAG. AM3, which is, I believe, CMC Magnetics,snip Hmm - sounds like we need a corollary to Nero's InfoTool for Linux to get at that Nope. Cdrtools/cdrecord can read all that stuff and tell you what you want to know. CLI though. that said, I've burned 100s and 100s of the Costco 16X TDK CMC MAG. AM3 DVDs with very very few problems. I've had several DVD burners, currently mostly using a Pioneer DVR-112D (16x DL), previously I had a Sony that was really a rebranded LiteOn, but after a couple years of heavy use, it started getting too many burn errors, so I retired it. I've always bought the store brands except for once (wanted High Speed compatible CD). I burn 'em at full speed, test 'em carefully and can any bad ones - very few to-date. The savings are great enough that if I have to trash one or two, NP. Of course, if you've something more important to do, it does cost a Little of your time and may not be worth the savings. snip -- Bill ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD?
MHR wrote: I just used a Live CD for the first time today, in part to show what CentOS can do for a co-worker who is looking at using it at work and home, but I got the strangest result. We booted the CD and let the centos user log in. It took a really long time to load the desktop and there were no panels, so the only things we could do were browse the computer, CD, home, file system, keyboard (sort of) and pretty much nothing else. altf2 and altf1 did nothing, either - no menu, no input windows - nada. Is that normal? If not, what did I/we overlook? I was expecting a lot more, and from looking around the wiki, there should have been, but I couldn't find a good reference for what the Live CD is supposed to be able to do or let a user do. Both live CDs (CentOS-4 and CentOS-5) boot to fully usable desktops. It sounds like there are hardware issues with the machine involved and the livecd booted. signature.asc Description: OpenPGP digital signature ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
RE: [CentOS] Live CD?
MHR wrote: I just used a Live CD for the first time today, in part to show what CentOS can do for a co-worker who is looking at using it at work and home, but I got the strangest result. We booted the CD and let the centos user log in. It took a really long time to load the desktop and there were no panels, so the only things we could do were browse the computer, CD, home, file system, keyboard (sort of) and pretty much nothing else. altf2 and altf1 did nothing, either - no menu, no input windows - nada. Is that normal? If not, what did I/we overlook? I was expecting a lot more, and from looking around the wiki, there should have been, but I couldn't find a good reference for what the Live CD is supposed to be able to do or let a user do. Incompatible burn for that reader? (cd-r, cd+r, cd-rw, cd+rw ...) Or maybe it is just the skew of the burn is outside of that readers acceptable range. -Ross __ This e-mail, and any attachments thereto, is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution or copying of this e-mail, and any attachments thereto, is strictly prohibited. If you have received this e-mail in error, please immediately notify the sender and permanently delete the original and any copy or printout thereof. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD?
On Wed, Jun 4, 2008 at 3:24 AM, Johnny Hughes [EMAIL PROTECTED] wrote: Both live CDs (CentOS-4 and CentOS-5) boot to fully usable desktops. It sounds like there are hardware issues with the machine involved and the livecd booted. Sounds likely - I'll check what I can mhr ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD Planning systems
On Sunday 06 January 2008 08:35:13 Robert Moskowitz wrote: Les Mikesell wrote: Robert Moskowitz wrote: My company supplies me with a very nice HP nc2400. Much faster, more memory, etc than my old HP nc4010. Problem is the drive is not swappable, and they encrypt the drive (the OS is XP). The nc2400 has a DVD/CDRW and 2 USB 2.0 ports so I was thinking. Make a Live DVD with everything I need but map /etc /root /home and /var/log (and what else?) to a USB flash drive (16Gb are available and I was just sent a PR on a 32Gb, maybe I can get an eval device :) ). If you can boot from USB, why not get one of the laptop-drive based external units that are available up to 250 gigs now and do a full install on it? Duh.. I would have to get one that can be powered from that one USB port (fairly rare, the few that I have require external power or the power from a 2nd USB port). I would also have to be able to strap it to the bottom of the unit for easy management on a plane. Though if I can get that 32Gb USB flash drive that might almost be enough And too bad not a larger Compact Flash MicroDrive. Hey, wait. I run my Libretto's DSL off of one I can put one in a PCMCIA holder and map the swap drive to it and Now I am cooking. Maybe. But still down to can XEN run the content of the encrypted drive. How do I find out? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos I have a external USB HD enclosure that takes its power from the one USB socket. Its only failed to do so on one oldish tower that a friend of mine has, on that machine it needed the second power connection. Got it from Ebay. You might find that mounting /swap on a solid state device brings about its early demise. They can't be written to indefinitely. Looking at my two external HD enclosures the one in question has an IDE hard drive in it and the other which quite often need a double connection, (though not when connected to this note book HP 510), has the original SATA hard drive that was in this note book when I first purchased it. Note book runs Mandriva 2008. (puts tin helmet on !) -- Guy Fawkes, the only man to enter the house's of Parliament with honest intentions, (he was going to blow them up!) Registered Linux user number 414240 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD Planning systems
John Bowden wrote: I have a external USB HD enclosure that takes its power from the one USB socket. Its only failed to do so on one oldish tower that a friend of mine has, on that machine it needed the second power connection. Got it from Ebay thts also out of spec, as USB is speced for 2.5 watts, 500mA at 5V, per port. Typlical laptop HD is like 5 watts, more when spinning up. yes, I know it usually works. just saying... ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD Planning systems
Robert Moskowitz wrote: My company supplies me with a very nice HP nc2400. Much faster, more memory, etc than my old HP nc4010. Problem is the drive is not swappable, and they encrypt the drive (the OS is XP). The nc2400 has a DVD/CDRW and 2 USB 2.0 ports so I was thinking. Make a Live DVD with everything I need but map /etc /root /home and /var/log (and what else?) to a USB flash drive (16Gb are available and I was just sent a PR on a 32Gb, maybe I can get an eval device :) ). If you can boot from USB, why not get one of the laptop-drive based external units that are available up to 250 gigs now and do a full install on it? -- Les Mikesell [EMAIL PROTECTED] ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD Planning systems
Les Mikesell wrote: Robert Moskowitz wrote: My company supplies me with a very nice HP nc2400. Much faster, more memory, etc than my old HP nc4010. Problem is the drive is not swappable, and they encrypt the drive (the OS is XP). The nc2400 has a DVD/CDRW and 2 USB 2.0 ports so I was thinking. Make a Live DVD with everything I need but map /etc /root /home and /var/log (and what else?) to a USB flash drive (16Gb are available and I was just sent a PR on a 32Gb, maybe I can get an eval device :) ). If you can boot from USB, why not get one of the laptop-drive based external units that are available up to 250 gigs now and do a full install on it? Duh.. I would have to get one that can be powered from that one USB port (fairly rare, the few that I have require external power or the power from a 2nd USB port). I would also have to be able to strap it to the bottom of the unit for easy management on a plane. Though if I can get that 32Gb USB flash drive that might almost be enough And too bad not a larger Compact Flash MicroDrive. Hey, wait. I run my Libretto's DSL off of one I can put one in a PCMCIA holder and map the swap drive to it and Now I am cooking. Maybe. But still down to can XEN run the content of the encrypted drive. How do I find out? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD Planning systems
Not to pitch another distro, but knoppix and dsl do pretty much what are looking for ,minus the xen. What I would propose though is to run vmware P2V (now called converter) on your XP machine. It will export a vmware image of that drive, then just format that sucker, install centos and vmware and run your corp image inside of that. It's what I do at work and it has always worked splendidly. On 1/5/08, Robert Moskowitz [EMAIL PROTECTED] wrote: My company supplies me with a very nice HP nc2400. Much faster, more memory, etc than my old HP nc4010. Problem is the drive is not swappable, and they encrypt the drive (the OS is XP). The nc2400 has a DVD/CDRW and 2 USB 2.0 ports so I was thinking. Make a Live DVD with everything I need but map /etc /root /home and /var/log (and what else?) to a USB flash drive (16Gb are available and I was just sent a PR on a 32Gb, maybe I can get an eval device :) ). So first I would want a bootable DVD that would have everything I want to have running on the cd2400. And of course, everytime one of the components get updated, I will have to build a new DVD. Then I would like to run within XEN my company's XP image on that encrypted drive. Is this possible. If I could do this, I can move the nc2400 as my 'workhorse', downgrade my nc4010 to my test box, and reallocate the Toshiba 3490 to the family And more importantly one less box to carry when traveling! I guess one thing in this whole equation will I be able to repartition the USB flash drive with a swap partition (will probably never use, as there is 1.5Gb memory in the nc2400. Twice as much as the nc4010), and an ext3 data partition? Or should I use LVM on it? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos -- Jason Luck favors the prepared. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD Planning systems
Jason Clark wrote: Not to pitch another distro, but knoppix and dsl do pretty much what are looking for ,minus the xen. I am using DSL 4.2 on a Libretto, so I will first be testing booting the nc2400 off a DSL live CD. What I would propose though is to run vmware P2V (now called converter) on your XP machine. It will export a vmware image of that drive, then just format that sucker, install centos and vmware and run your corp image inside of that. It's what I do at work and it has always worked splendidly. I CANNOT touch the drive. I have to leave it and its encrypted XP alone. In fact I think it will be rather hard to get the encyrption off the drive without blowing the MSB and partition tables. And they force XP updates down to me that I have no choice to 'install later'. Rather my only choice once they pop up on the box is when to reboot... It would be nice, but question about how much work Live CD is. Perhaps I should pull the current one down and boot it for kicks... On 1/5/08, *Robert Moskowitz* [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] wrote: My company supplies me with a very nice HP nc2400. Much faster, more memory, etc than my old HP nc4010. Problem is the drive is not swappable, and they encrypt the drive (the OS is XP). The nc2400 has a DVD/CDRW and 2 USB 2.0 ports so I was thinking. Make a Live DVD with everything I need but map /etc /root /home and /var/log (and what else?) to a USB flash drive (16Gb are available and I was just sent a PR on a 32Gb, maybe I can get an eval device :) ). So first I would want a bootable DVD that would have everything I want to have running on the cd2400. And of course, everytime one of the components get updated, I will have to build a new DVD. Then I would like to run within XEN my company's XP image on that encrypted drive. Is this possible. If I could do this, I can move the nc2400 as my 'workhorse', downgrade my nc4010 to my test box, and reallocate the Toshiba 3490 to the family And more importantly one less box to carry when traveling! I guess one thing in this whole equation will I be able to repartition the USB flash drive with a swap partition (will probably never use, as there is 1.5Gb memory in the nc2400. Twice as much as the nc4010), and an ext3 data partition? Or should I use LVM on it? ___ CentOS mailing list CentOS@centos.org mailto:CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos -- Jason Luck favors the prepared. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD root password
Alain Reguera Delgado wrote: On 7/13/07, Mogens Kjaer [EMAIL PROTECTED] wrote: Does the root user on the CentOS 5 live CD have a password? If so, which? See this: http://lists.centos.org/pipermail/centos-announce/2007-July/014021.html Thanks for the link - I had only searched this list for the answer, not the announce list :-( For someone else making this mistake the answer is 12qwaszx the first two characters in each row on the keyboard (unless you have a German keyboard). Mogens -- Mogens Kjaer, Carlsberg A/S, Computer Department Gamle Carlsberg Vej 10, DK-2500 Valby, Denmark Phone: +45 33 27 53 25, Fax: +45 33 27 47 08 Email: [EMAIL PROTECTED] Homepage: http://www.crc.dk ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD root password
On 7/13/07, Mogens Kjaer [EMAIL PROTECTED] wrote: Does the root user on the CentOS 5 live CD have a password? If so, which? See this: http://lists.centos.org/pipermail/centos-announce/2007-July/014021.html ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Live CD root password
Does the root user on the CentOS 5 live CD have a password? If so, which? http://lists.centos.org/pipermail/centos-announce/2007-July/014021.html Seán ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
