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On Mon, Dec 2, 2013 at 10:34 PM, Jc García <jyo.garcia@×××××.com> wrote: |
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> 2013/12/2 William Kenworthy <billk@×××××××××.au> |
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>> |
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>> You are looking far too deep .... |
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>> |
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>> |
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>> just rsync -avP to /newusr |
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> |
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> +1 |
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> I have done this more or less the same way |
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>> |
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>> reboot to livecd |
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>> |
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>> rsync again with --delete to update ... takes a only few seconds this |
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>> time - minimal downtime :) |
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>> mv /usr /oldusr |
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>> mv /newusr /usr |
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>> reboot |
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> |
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> |
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> Let's make this thread more interesting, would it be possible to do |
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> this without a reboot? ie: going single user mode, kill anything that |
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> might still be running from usr, umount /usr, mount it to /mnt, rsync |
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> -avP to usr, going again into runlevel 3 or 5. |
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> Obviously not possible if running systemd. |
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I'm not so sure it's not possible. Perhaps it's even easier. |
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If you do "systemctl isolate emergency.target" then remount / |
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read/write, do the move, and then again isolate multi-user.target or |
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graphical.target, I think is possible. I will try on a virtual |
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machine; is an interesting question. You would need to use absolute |
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pathnames when actually performing the move, but I think is possible. |
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Regards. |
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-- |
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Canek Peláez Valdés |
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Posgrado en Ciencia e Ingeniería de la Computación |
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Universidad Nacional Autónoma de México |
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