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Bug 87649 - Upgrade OS onto different disks on a live system
Summary: Upgrade OS onto different disks on a live system
Alias: None
Product: Red Hat Enterprise Linux 2.1
Classification: Red Hat
Component: anaconda
Version: 2.1
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Michael Fulbright
QA Contact: Mike McLean
Depends On:
TreeView+ depends on / blocked
Reported: 2003-03-31 21:19 UTC by Dave Dulek
Modified: 2007-11-30 22:06 UTC (History)
0 users

Fixed In Version:
Doc Type: Enhancement
Doc Text:
Clone Of:
Last Closed: 2003-03-31 21:20:53 UTC

Attachments (Terms of Use)

Description Dave Dulek 2003-03-31 21:19:00 UTC
We would like the ability to install patches and version upgrades in a stand aside 
mode.  This would need to happen on the "live" system. 
Basically, this install would copy the existing "root" file systems (i.e /, /usr, /var) 
onto the "new" disk.  Upgrades and patches would be then applied to the "new" 
filesystems.  A reboot would then be required to boot off the "new" system file 
systems.  If problems arise you can then boot the "old" system and revert back to 
the system prior to the changes. 
This would be similar to the "Live Upgrade" of Sun Microsystem's Solaris.

Comment 1 Michael Fulbright 2003-03-31 21:20:53 UTC
We do not plan to support this mode of upgrades in the near future.

If you wanted to do this you could put code in your %pre of a kickstart file to
backup the filesystems, upgrade the existing, and if you don't like what
happened copy the backup over the upgraded system.

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