[CentOS] serial console oddities with CentOS Linux release 6.0 (Final)
It seems as if /etc/inittab has undergone some changes. That doesn't seem to be related to my issues however. I am able to setup the grub.conf ( menu.lst if you like ) to use the serial console ttyS0 at 9600 baud and the usual bits. However I can not actually see the GRUB menu at boot time. I see nothing until the server begins to boot and then I can see everything. However the grub menu is absent entirely. My config looks like so : # grep -v ^# /boot/grub/grub.conf default=0 timeout=30 serial --unit=0 --speed=9600 --word=8 --parity=no --stop=1 terminal -timeout=30 serial console title CentOS (2.6.32-71.el6.x86_64) root (hd0,0) kernel /vmlinuz-2.6.32-71.el6.x86_64 ro root=UUID=2396ae8a-7eaa-4690-8701-10fb1b604e21 rd_NO_LUKS rd_NO_LVM rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us crashkernel=auto rhgb console=tty0 console=ttyS0,9600n8 initrd /initramfs-2.6.32-71.el6.x86_64.img Everything runs fine, however the GRUB menu is no where to be seen at boot time. Any ideas ? Dennis -- -- http://pgp.mit.edu:11371/pks/lookup?op=vindexsearch=0x1D936C72FA35B44B +-+---+ | Dennis Clarke | Solaris and Linux and Open Source | | dcla...@blastwave.org | Respect for open standards. | +-+---+ ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] not using LVM for Linux VM guests?
Nope, doesn't work for me still. It's the root partition I'm trying to resize so if I delete then recreate to larger size, partprobe still fails then if I reboot it won't start as it can't find the root partition. As Barry suggested, I don't think you can reread the root partition. --Russell -Original Message- From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of James A. Peltier Sent: Friday, 18 November 2011 6:29 p.m. To: CentOS mailing list Subject: Re: [CentOS] not using LVM for Linux VM guests? - Original Message - | I've tried that, it returns a warning about kernel unable to reread | partition table and requiring a reboot to see any modifications. | Then the next call to pvcreate fails as it can't find the partition. | | --Russell | | -Original Message- | From: centos-boun...@centos.org [mailto:centos- boun...@centos.org] | On | Behalf Of Barry Brimer | Sent: Friday, 18 November 2011 11:13 a.m. | To: CentOS mailing list | Subject: Re: [CentOS] not using LVM for Linux VM guests? | | Quoting Smithies, Russell russell.smith...@agresearch.co.nz: | | Perhaps I'm doing it wrong then. | | 1). In Vmware, extend the existing disk by changing the | provisioned size in the vSphere client. | 2). In Centos, create an additional partition with fdisk, 3). | Somehow | reread the partition table without rebooting?? | 4). pvcreate | 5). vgextend | 6). lvextend | 7). resize2fs | | What I find is that without a reboot, the OS doesn't see the | partition so can't pvcreate etc. | | --Russell | | I don't believe partprobe works when you change the partitiontable of | the disk that the root filesystem is on. I could be remembering it | wrong. | | Barry It does but it (the new size) is not recognized until you delete the partition, recreate it with the new size, then run partprobe again, then resize the file system. It's worked for me in the past. -- James A. Peltier IT Services - Research Computing Group Simon Fraser University - Burnaby Campus Phone : 778-782-6573 Fax : 778-782-3045 E-Mail : jpelt...@sfu.ca Website : http://www.sfu.ca/itservices http://blogs.sfu.ca/people/jpeltier I will do the best I can with the talent I have ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos === Attention: The information contained in this message and/or attachments from AgResearch Limited is intended only for the persons or entities to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipients is prohibited by AgResearch Limited. If you have received this message in error, please notify the sender immediately. === ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Setting up a Virtual Machine
I have CentOS 5.7. How would I go about setting up a virtual machine so as to run another Linux distro on top of it? Specifically Scientific Linux or Vinux, a special distro for blind users. I will be using the latter to test my BrailelBlaster software with gtk and the Orca screenreader. Will I have to assign memory to the VM permanently? Thanks, John -- John J. Boyer; President, Chief Software Developer Abilitiessoft, Inc. http://www.abilitiessoft.com Madison, Wisconsin USA Developing software for people with disabilities ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Setting up a Virtual Machine
On 11/20/11 2:45 PM, John J. Boyer wrote: I have CentOS 5.7. How would I go about setting up a virtual machine so as to run another Linux distro on top of it? Specifically Scientific Linux or Vinux, a special distro for blind users. I will be using the latter to test my BrailelBlaster software with gtk and the Orca screenreader. Will I have to assign memory to the VM permanently? imho, the easiest way to do this would be to install VirtualBox. the memory assigned to the VM is only in use when the VM is active, you can 'standby' a virtualbox and it releases all its resources, then resume it at another time. -- 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] serial console oddities with CentOS Linux release 6.0 (Final)
On Sun, Nov 20, 2011 at 02:13:13PM -0500, Dennis Clarke wrote: However I can not actually see the GRUB menu at boot time. I see nothing until the server begins to boot and then I can see everything. However the grub menu is absent entirely. My config looks like so : .. serial --unit=0 --speed=9600 --word=8 --parity=no --stop=1 terminal -timeout=30 serial console put these two lines at the beginning and fix the --timeout typo :) This config works for me: cut serial --unit=0 --speed=38400 terminal --timeout=10 serial console default=0 timeout=5 title CentOS Linux (2.6.32-71.29.1.el6.x86_64) root (hd0,0) kernel /vmlinuz-2.6.32-71.29.1.el6.x86_64 ro root=/dev/mapper/vg_c6-lv_root rd_LVM_LV=vg_c6/lv_root rd_LVM_LV=vg_c6/lv_swap rd_NO_LUKS rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us nomodeset crashkernel=auto rhgb quiet console=tty0 console=ttyS0,38400n initrd /initramfs-2.6.32-71.29.1.el6.x86_64.img /cut Cheers, Tru -- Tru Huynh (mirrors, CentOS i386/x86_64 Package Maintenance) http://pgp.mit.edu:11371/pks/lookup?op=getsearch=0xBEFA581B pgp4zTpN0vC25.pgp Description: PGP signature ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] build postfix spec w/ mysql
On Sunday, November 20, 2011 02:11 AM, Tim Dunphy wrote: hello list! I am attempting to build an rpm of postfix that includes support for mysql. I've done this before with earlier versions on postfix but I am staring at this spec file until my eyes bleed and I just don't see why when I build the spec with rpmbuild mysql support isn't there. After I install the rpm I have a look at the modules as such: ldd $(which postfix) | grep -i mysql and nothing's there. I was hoping someone out there might not mind having a look at the spec file and let me know what I'm missing. I thought there was a postfix package with mysql enabled in the plus repo? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Setting up a Virtual Machine
On Sun, Nov 20, 2011 at 02:54:34PM -0800, John R Pierce wrote: imho, the easiest way to do this would be to install VirtualBox. So I tried to install the latest version of VirtualBox from virtualbox.org It turned out that it deleted a previous version, which I suppose was provided with CentOS and then couldn't install itself. The error lmessage said it could not find the kernel source. What should I do now? John memory assigned to the VM is only in use when the VM is active, you can 'standby' a virtualbox and it releases all its resources, then resume it at another time. -- 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 -- John J. Boyer; President, Chief Software Developer Abilitiessoft, Inc. http://www.abilitiessoft.com Madison, Wisconsin USA Developing software for people with disabilities ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Setting up a Virtual Machine
Am 21.11.2011 02:29, schrieb John J. Boyer: On Sun, Nov 20, 2011 at 02:54:34PM -0800, John R Pierce wrote: imho, the easiest way to do this would be to install VirtualBox. So I tried to install the latest version of VirtualBox from virtualbox.org It turned out that it deleted a previous version, which I suppose was provided with CentOS and then couldn't install itself. The error lmessage said it could not find the kernel source. What should I do now? yum install kernel-headers kernel-devel such software needs usually to compile kernel-modules signature.asc Description: OpenPGP digital signature ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Setting up a Virtual Machine
On Sun, Nov 20, 2011 at 7:29 PM, John J. Boyer john.bo...@abilitiessoft.com wrote: On Sun, Nov 20, 2011 at 02:54:34PM -0800, John R Pierce wrote: imho, the easiest way to do this would be to install VirtualBox. So I tried to install the latest version of VirtualBox from virtualbox.org It turned out that it deleted a previous version, which I suppose was provided with CentOS and then couldn't install itself. The error lmessage said it could not find the kernel source. What should I do now? John memory assigned to the VM is only in use when the VM is active, you can 'standby' a virtualbox and it releases all its resources, then resume it at another time. -- 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 -- John J. Boyer; President, Chief Software Developer Abilitiessoft, Inc. http://www.abilitiessoft.com Madison, Wisconsin USA Developing software for people with disabilities ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos For Virtualbox this article may be helpful, http://www.if-not-true-then-false.com/2010/install-virtualbox-with-yum-on-fedora-centos-red-hat-rhel/ ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Setting up a Virtual Machine
On Mon, Nov 21, 2011 at 02:32:18AM +0100, Reindl Harald wrote: yum install kernel-headers kernel-devel such software needs usually to compile kernel-modules Both packages are already installed. John ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos -- John J. Boyer; President, Chief Software Developer Abilitiessoft, Inc. http://www.abilitiessoft.com Madison, Wisconsin USA Developing software for people with disabilities ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] 2 network card setup
Dear all, I have a question regarding 2 network card setup, when e.g. using dhcp. Until a few months ago, I worked with OpenSuse. There in firewall config, you had to assign each NIC to a zone, either internal, external, DMZ or custom. Without it not much would work. I don't seen anything on CentOs in firewall config. So how does this work in CentOs? greetings, James -- Johan Vermeulen IT-medewerker Caw De Kempen johan.vermeu...@cawdekempen.be 0479.82.01.41 Opensource Software is the future. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 2 network card setup
On Mon, Nov 21, 2011 at 1:39 PM, Johan Vermeulen jvermeu...@cawdekempen.be wrote: Until a few months ago, I worked with OpenSuse. There in firewall config, you had to assign each NIC to a zone, either internal, external, DMZ or custom. Without it not much would work. I don't seen anything on CentOs in firewall config. So how does this work in CentOs? In Centos the standard firewall settings are basic. Don't worry about setting up zones, etc. Unless you do want that setting. What are you going to do with 2 network card? As gateway? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
