Bug 87649 – Upgrade OS onto different disks on a live system

Bug 87649 - Upgrade OS onto different disks on a live system

Summary:	Upgrade OS onto different disks on a live system

Status:	CLOSED WONTFIX

Aliases:	None

Product:	Red Hat Enterprise Linux 2.1
Classification:	Red Hat
Component:	anaconda (Show other bugs)
Sub Component:
Version:	2.1
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Michael Fulbright
QA Contact:	Mike McLean
Docs Contact:

URL:
Whiteboard:
Keywords:	FutureFeature

Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2003-03-31 16:19 EST by Dave Dulek
Modified:	2007-11-30 17:06 EST (History)
CC List:	0 users

See Also:
Fixed In Version:
Doc Type:	Enhancement
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2003-03-31 16:20:53 EST
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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Description Dave Dulek 2003-03-31 16:19:00 EST

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 16:20:53 EST

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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