Re: [CentOS] Help! i want to clone my Centos machine to another box..
i've spent the last week trying to find something that will clone my existing Centos server to a more powerful box. i've used clonezilla though that resulted in a complete failure.. can anyone please guide me in the right direction? all i want to do is to clone my entire server and all of it's directories to a more powerful server so i start using it instead.. i dont want to get rid of the current server as i want both of them to run in parallel with the same backed up services/data on each of them.. can anyone please help! im honestly desperate!! I did something like this in past. I simply used a linux boot CD in middle of night then used dd to copy the entire disk to new drive of equal or greater size. Then I placed the new disk in the new server and booted up. This may not be what you want though. Matt ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Help! i want to clone my Centos machine to another box..
On Thu, Oct 22, 2009 at 01:34:01PM +0200, RoLaNd RoLaNd wrote: Hello, thanks for your prompt reply.. i was leaving that option as a last resort... the problem is that this machine is a production machine so if i rsync, i need to turn off the services in order to copy files or else ill have permission denied errors... any other way? i;ll start the proccess of creating a fresh instalation today though i dunno how to do the followign: On 10/22/2009 04:06 AM RoLaNd RoLaNd wrote: Hello all, i've spent the last week trying to find something that will clone my existing Centos server to a more powerful box. i've used clonezilla though that resulted in a complete failure.. ... Since the destination machine is more powerful, the hardware is likely different, so cloning per se isn't an option. Instead, you should do a fresh install of the same version on the new (destination) box, then copy the data over from the weaker to the destination machine. Compare and contrast the two machines for us. It may be possible to just move the disks and reboot. HOWEVER Since this is a production environment that might be reckless. Make sure you have a LiveCD or LiveUSBstick for the new machine so you can fix things. I would start with a fresh install and migrate services and data, perhaps one service at a time. Plan on multiple reinstalls and clone data and config files with a script. With the fresh install in place you can see a lot that will help in the compare, contrast and planning process. Install; clone data;test Install; clone data;test ... Install; clone data;test Install; clone data;test switch ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Help! i want to clone my Centos machine to another box..
Hello all, i've spent the last week trying to find something that will clone my existing Centos server to a more powerful box. i've used clonezilla though that resulted in a complete failure.. can anyone please guide me in the right direction? all i want to do is to clone my entire server and all of it's directories to a more powerful server so i start using it instead.. i dont want to get rid of the current server as i want both of them to run in parallel with the same backed up services/data on each of them.. can anyone please help! im honestly desperate!! best, Roland _ Windows Live Hotmail: Your friends can get your Facebook updates, right from Hotmail®. http://www.microsoft.com/middleeast/windows/windowslive/see-it-in-action/social-network-basics.aspx?ocid=PID23461::T:WLMTAGL:ON:WL:en-xm:SI_SB_4:092009___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Help! i want to clone my Centos machine to another box..
On 10/22/2009 04:06 AM RoLaNd RoLaNd wrote: Hello all, i've spent the last week trying to find something that will clone my existing Centos server to a more powerful box. i've used clonezilla though that resulted in a complete failure.. can anyone please guide me in the right direction? all i want to do is to clone my entire server and all of it's directories to a more powerful server so i start using it instead.. i dont want to get rid of the current server as i want both of them to run in parallel with the same backed up services/data on each of them.. can anyone please help! im honestly desperate!! best, Roland Since the destination machine is more powerful, the hardware is likely different, so cloning per se isn't an option. Instead, you should do a fresh install of the same version on the new (destination) box, then copy the data over from the weaker to the destination machine. There are a variety of options for copying the data. Since it sounds like there's some pressure at the moment, the best way for you now is going to be the method you're most familiar with. Do you have good, recent backups of the source system? If so, you could restore that backup to the destination machine. Otherwise (if your two machines are both on the same network), you could use tar or rsync or yet other utilities. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Help! i want to clone my Centos machine to another box..
We use Norton Ghost all the time. You sometimes have to jiggle drivers after it comes up - I'll leave that as an exercise to the reader :-) On Thu, Oct 22, 2009 at 4:06 AM, RoLaNd RoLaNd r_o_l_a_...@hotmail.com wrote: Hello all, i've spent the last week trying to find something that will clone my existing Centos server to a more powerful box. i've used clonezilla though that resulted in a complete failure.. can anyone please guide me in the right direction? all i want to do is to clone my entire server and all of it's directories to a more powerful server so i start using it instead.. i dont want to get rid of the current server as i want both of them to run in parallel with the same backed up services/data on each of them.. can anyone please help! im honestly desperate!! best, Roland Windows Live Hotmail: Your friends can get your Facebook updates, right from Hotmail®. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of In Defense of Food ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Help! i want to clone my Centos machine to another box..
1. backing up my mysql databases is it enough to cp /var/lib/mysql and /user/lib/mysql or i have to export them? and if thats the case how can i export? For MySQL backups I use the mysqldump utility, which dumps the data as pure SQL. This may not be the best option if you have a huge amount of data though. /usr/bin/mysqldump --lock-tables --add-locks --add-drop-table -u root --databases my_database my_database-091021.sql ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Help! i want to clone my Centos machine to another box..
RoLaNd RoLaNd wrote: thanks for your prompt reply.. i was leaving that option as a last resort... the problem is that this machine is a production machine so if i rsync, i need to turn off the services in order to copy files or else ill have permission denied errors... any other way? It is rare for files to be locked on Linux when in use, so you probably won't get permission denied errors. However, if files are changing while you copy them you will get a bad copy. One approach is to do one rsync with the machine running normally, then repeat with most of the services stopped. The 2nd pass will go very quickly since it only has to copy the changed files. i;ll start the proccess of creating a fresh instalation today though i dunno how to do the followign: 1. backing up my mysql databases is it enough to cp /var/lib/mysql and /user/lib/mysql or i have to export them? and if thats the case how can i export? If mysql isn't running and you are copying to the same type of machine (32/64 bit) you can copy the files directly. Otherwise, msqldump is the way to export (and what you should be using regularly for backups). 2. anyway of copying user permissions and passwords? or i have to create them all over again ? You'll have to work through the files in /etc by hand, since some relate to the hardware and some to the configured software. If all the installed software is the same on the new system you can probably just copy /etc/passwd, /etc/shadow, /etc/group, and /etc/gshadow but a safer approach is to keep the uid's below 500 from the new system and edit in the higher ones from the old. I'd either copy the old /etc tree to some other location on the new system so you can diff and pick out the useful parts or change the old system's name/IP so you can access it until the new one is completely working. I've always thought that linux distos badly needed a 're-install' function to adapt a clone/backup copy to new hardware. Most of the knowledge of what has to change is buried in anaconda - although you have a fair chance of making it work if you boot a rescue CD and rebuild the initrd with the modules that are set up when you do an install on that machine. -- Les Mikesell lesmikes...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Help! i want to clone my Centos machine to another box..
roland, what i recently did was use this info and modified the backup-servers script slightly http://www.jms1.net/code/rsync-backup.shtml it was really simple to move a live centos4 from one machine to another after admin down services that would allow data to change on the final rsync pass. one machine was an older compaq DL380 and the new machine was a HP DL360 basically i did a centos 4 load on the new machine and paid careful attention to what needs to be excluded as well as changed before and afterwards things like /etc/modprobe.conf then change ips and reboot. the having two servers side by side thing is a different set of circumstances and setup... we just cloned one to the other and took the original machine offline. if you have a lot of linux experience and cannot figure out the step by step, post what you did to try and accomplish it and then we can help more later please be specific in your postings - rh ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Help! i want to clone my Centos machine to another box..
Acronis, with a little SALT and PEPPER may do the trick. However after running acronis you would have to do an OS Repair. Sorry, that is for windows. CentOS on the other hand should be able to CLUSTER. Why not try to cluster it instead On Thu, Oct 22, 2009 at 11:30 AM, R-Elists list...@abbacomm.net wrote: roland, what i recently did was use this info and modified the backup-servers script slightly http://www.jms1.net/code/rsync-backup.shtml it was really simple to move a live centos4 from one machine to another after admin down services that would allow data to change on the final rsync pass. one machine was an older compaq DL380 and the new machine was a HP DL360 basically i did a centos 4 load on the new machine and paid careful attention to what needs to be excluded as well as changed before and afterwards things like /etc/modprobe.conf then change ips and reboot. the having two servers side by side thing is a different set of circumstances and setup... we just cloned one to the other and took the original machine offline. if you have a lot of linux experience and cannot figure out the step by step, post what you did to try and accomplish it and then we can help more later please be specific in your postings - rh ___ 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] Help! i want to clone my Centos machine to another box..
RoLaNd RoLaNd a écrit : Hello all, i've spent the last week trying to find something that will clone my existing Centos server to a more powerful box. If I had to clone a machine, I would. 1) Use G4U (Ghost 4 Unix) 2) Boot PartedMagic on the target machine and perform and eventual disk resize. 3) Run Kudzu on the first bootup, then eventually configure odd bits by hand. Cheers, Niki ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Help! i want to clone my Centos machine to another box..
On Thu, Oct 22, 2009 at 3:06 AM, RoLaNd RoLaNd r_o_l_a_...@hotmail.com wrote: Hello all, i've spent the last week trying to find something that will clone my existing Centos server to a more powerful box. i've used clonezilla though that resulted in a complete failure.. You used the CloneZilla Live CD? CloneZilla Server and DRBL Server are entirely different and can be difficult. But CloneZilla _LiveCD_ is easy. Tell us more about your RAID config. It is not software raid is it? Not sure if any cloning system can work to clone software raid unless you have completely identical set of drives in both and then you would not be doing disk level cloning, but file level cloning. What kind of raid do you have? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
