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тАО02-24-2010 05:19 PM
тАО02-24-2010 05:19 PM
In this new project I need to duplicate a kickstart server as we only have a production, which I was inherited when I took this project. Since we don't have a backup, I am concerned if something happens to the current server, we are lost. So as a backup, I want to create a dev node as a backup. So now, I need a quick setup to replicate the kickstart, which is running linux 5.2. So how can I approach this?
On a new server, I will install linux 5.2 and then can I copy(dd) the data from prod server to the dvd and apply on the new server? Or any better ideas?
Thank you for your time.
Solved! Go to Solution.
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тАО02-25-2010 01:24 AM
тАО02-25-2010 01:24 AM
Solutionhttp://mondorescue.org/
These exist .rpm packages, and installation is very easy. Once you install it, you can make exact copy of your system and burn it to CD/DVD, copy to USBs, HD, whatever you want.
Here is documentation
http://mondorescue.org/docs.shtml
Copy of working system on ( eg ) DVDs, you save and use it in case of problem.
Recovery is simple, you can recover some files, partitions, whole system.
Do not forget to check are media written correct after making them
Hope this helps
Elko
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тАО02-25-2010 01:43 AM
тАО02-25-2010 01:43 AM
Re: Duplicate a server
A tar (or dd) would also work, but mondorescue is far more convenient as it even allows to restore to bare metal, automatically creating partitions and everything.
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тАО02-25-2010 05:39 AM
тАО02-25-2010 05:39 AM
Re: Duplicate a server
[root@server etc]# cat redhat-release
Red Hat Enterprise Linux Server release 5.2 (Tikanga)
[root@server etc]# uname -a
Linux server.local 2.6.18-92.1.10.el5 #1 SMP Wed Jul 23 03:55:54 EDT 2008 i686 i686 i386 GNU/Linux
[root@server etc]#
Thank you.
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тАО02-25-2010 05:53 AM
тАО02-25-2010 05:53 AM
Re: Duplicate a server
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тАО02-25-2010 06:29 AM
тАО02-25-2010 06:29 AM
Re: Duplicate a server
mindi-busybox-1.7.3-1.rhel5.i386.rpm
mindi-2.0.7.2-1.rhel5.i386.rpm
mondo-2.2.9.2-1.rhel5.i386.rpm
First install mindi-busybox, then mindi and mondo.
Please read at least first 20 pages of .pdf on mondorescue. it is very clear written, In PDF document you have more information how to start mondo, how to create backup, on DVDs or as iso images. Once you start mondo, you can experiment with it and find what best suit you.
Important : Once you create backup media, please verify them. I mean, before you consider they are ok, try to recover system from them, just to be sure backup media is ok and working .
Murphy never sleep :)
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тАО02-25-2010 10:31 AM
тАО02-25-2010 10:31 AM
Re: Duplicate a server
[Main] libmondo-fork.c->eval_call_to_make_ISO#179: Basic call 'cdrecord -eject -v (null) fs=4m dev=/dev/cdrom
speed=8 //mondo.tmp.2vkx6w/temporary.iso' returned an error.
Press ENTER to continue.
mkisofs and/or cdrecord returned an error. CD was not created
Making an ISO (CDR #1)...failed to write
[Main] libmondo-devices.c->is_this_device_mounted#1132: Is /dev/cdrom mounted?
I really like if DVD works. Any ideas?
Thank you
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тАО02-25-2010 12:10 PM
тАО02-25-2010 12:10 PM
Re: Duplicate a server
Depending on the model of DVD/CD-Writer you have, writing to that media can be problematic.
Much better to create iso files on an NFS Share, or even local disk, which you can copy across the network to become the building blocks of new systems.
SEP
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
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тАО02-25-2010 12:35 PM
тАО02-25-2010 12:35 PM
Re: Duplicate a server
mondoarchive
then will show up blue screen with red options
1) cd-r disks
2) dvd disks
3) tape
and so on,
please choose option hard disk, next step is to choose path, after that is compression, then it says
" Please enter how big you want each ISO image to be (in megabytes). This should be less..DVD's (4480) you plan to backup to. ""
choose there size ( or accept default 4480 for DVD image ) for iso image size.
After that give it a name and wait on it to finish. It will make iso image at path you choosed above.
After that you can burn image on same machine or use scp to copy it to some other machine and burn it.
That image or images are copy of your system.
When decide to recover system, boot up from first of media you made and follow steps.
I think option "nuke" will back system at state when images were made. It is also possible to recover some files/dirctories.
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тАО02-26-2010 11:19 AM
тАО02-26-2010 11:19 AM
Re: Duplicate a server
Restore questions: Can I restore from dvd(once I am done)on any other node or it should be hardware specific? I am planning to restore to a dell laptop.
Thank you for all your valuable time and help.