Re: Live Upgrade for Linux

From: Patrick Ohnewein (patrick.ohnewein@lugbz.org)
Date: 03/26/03

  • Next message: sflinux@erd.erd3.com: "Re: Live Upgrade for Linux" 
    Date: Wed, 26 Mar 2003 21:24:23 +0100
From: Patrick Ohnewein <patrick.ohnewein@lugbz.org>
To: ksauke@fastenal.com

    > ... What Live
    > Upgrade does under solaris is it creates a complete alternate boot
    > environment with a root /usr /var and any other filesystem you want.

    I do this on my production servers, too. I just wrote a SIMPLE script
    which copies the contents of the file systems to other partitions, after
    that I just have to edit the copied /etc/fstab and reboot the system.

    The first time of course I also had to reconfigure the boot loader (lilo
    in my case).

    You can find a not yet finished report about my experience doing so. The
    report is in german, but it contains the self explaining script!

    My script uses cp, a more elegant solution would be to use tar, but
    that's just optimisation.

    Hope this helps give an answer to your question. I would say the answer
    is: may be no tool exists, because it's a to easy task for a dedicated
    tool ;)

    Happy hacking!
    Patrick 

    -- 
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And visit http://www.lugbz.org the Linux User Group in South Tyrol
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