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Old 09-25-2005, 04:05 AM   #1
btrthnwin
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Registered: Sep 2005
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Question Replace Disk Subsystem and new motherboard


Hello forum. I thought that it would help you to answer my question if I sectioned it into the system, the problem, and my question:

The System:
SuSE 9.3 with current upgrades running on a Tyan K8W motherboard with dual Opterons and a 3ware card in RAID 0 configuration. Everything works perfectly as the system has multiple user accounts, installed scientific software, and LAN connectivity.

The Problem:
Replace current motherboard with a Tyan K8WE while simultaneously replacing 3ware RAID 0 configuration with Areca RAID 0+1 configuration WHILE maintaining OS configuration and installed software.

The Question:
I know how to handle the hardware. I think that I can resolve the software issue by restoring a backup of the current system. I have two backups, one using YaST and the other using DAR. I will have to install a minimum SuSE system to have access to these backups and I know how to do that. What I do not know is:


(1) which backup is better for the proposed restore?
(2) if the restore will overwrite the OS hardware configuration files, which will be different for the new motherboard and RAID card and thereby cause the system to crash? Do I simply not install the /dev directory or is there more to it?



Thanks, Chris
 
Old 09-25-2005, 10:04 AM   #2
exvor
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Registered: Jul 2004
Location: Phoenix, Arizona
Distribution: LFS-Version SVN-20091202, Arch 2009.08
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If your going to be reinstalling the operating system then all you reall need to backup would be
your home dir and any other user files. As for the installed programs just make note of witch ones
are installed and reinstall them. If you were really clever you would have all your installed
programs in somthing like /usr/local and you could just backup local



Hope this helps
 
Old 09-26-2005, 01:00 AM   #3
btrthnwin
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Registered: Sep 2005
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Thanks exvor. While your suggestion will work, it is not the most efficient method, which is what I really seek. The installed software has been customized, the OS optimized, and user accounts created. It would be very time-consuming to rebuild the system.

Does anyone else know how to restore the system from a complete backup, without overwriting the hardware-specific files?
 
Old 09-27-2005, 12:25 AM   #4
btrthnwin
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Registered: Sep 2005
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In speaking with the SUSE technical support, I have discovered the solution. I post it here for archival purposes.

1) Replace motherboard with new motherboard; both the new and old RAID cards are installed on the new motherboard.

2) Boot the system from the old RAID card (BIOS setting) SUSE will auto-detect the new motherboard and add the appropriate drivers.

2) Do a full backup.

3) Restore the full backup on the hard drives attached to the new RAID card. NOTE: The system is currently running on the hard drives attached to the old RAID card.

4) Shutdown computer, remove old RAID card, reboot, set the BIOS to boot from the new RAID card, and enjoy!
 
  


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