Art Alexion on 10 Jan 2011 09:01:37 -0800

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[PLUG] Alternate /home (new topic)

On Sun, Jan 9, 2011 at 2:09 PM, K.S. Bhaskar <> wrote:
> I always set up a system with two alternate root partitions.
> Once I set up the initial root partition, I copy it over to another
> partition mounted as /spare.  Getting it to mount requires some minor
> editing of /etc/fstab and grub setup.  Each mounts the other as
> /spare.  I confirm that I can boot both.  Then I boot the alternate
> root only occasionally, just to verify that it's still sound.  Now, if
> I have some software updates go awry, or a version upgrade that fails,
> I just switch to the alternate root (and as likely as not make it my
> main root and recreate the original root from it).
> I always set up an encrypted /home.  But I configure my PC so that I
> can login without /home mounted.  When I cross an international border
> with my laptop, I always cross it with the laptop powered down.  Then
> if I am asked to boot it, I boot it, and can login - but it will be an
> innocuous /home, not my real /home (not that I have ever been asked to
> boot my laptop - just a sensible precaution, IMHO).  To mount the
> encrypted /home, I login as root and run a shell script:

> In these days of monster disks, I usually have the fourth partition
> mounted as /extra from both roots.  I use this for anything that I am
> working on that doesn't need to be encrypted (e.g., since the software
> I work with, GT.M, is FOSS, I don't need an encrypted development
> environment for it.

I really like this idea.  I understand that your shell script switches
between homes, but how did you set it up in the first place?

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