GNU bug report logs - #25286
cow-store destroys /tmp

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From: ludo <at> gnu.org (Ludovic Courtès)
To: John Darrington <john <at> darrington.wattle.id.au>
Cc: 25286 <at> debbugs.gnu.org
Subject: bug#25286: cow-store destroys /tmp
Date: Mon, 02 Jan 2017 21:44:46 +0100

John Darrington <john <at> darrington.wattle.id.au> skribis:

> 1. Boot from an installation-os image.
> 2. cp /etc/issue /tmp
> 3. ls -l /tmp    [observe that /tmp/issue exists]
> 4. mount -t ext4 /dev/sda1 /mnt
> 5. herd start cow-store /mnt
> 6. ls -l /tmp  [observe that /tmp/issue has dissappeared]

Indeed, ‘cow-store’ bind-mounts /mnt/tmp (or whatever the target mount
point is) to /tmp to make sure we have enough disk space if we need to
build things.  This was done in commit
0adabad72d58492f08975af0b6b837ebde32a51b in response to a bug report.

Is it a problem for the installer?

Thanks,
Ludo’.

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