[Pkg-cryptsetup-devel] Bug#466175: Bug#466175: cryptsetup: initramfs hook script doesn't check for LABEL= mounts

Jonas Meurer jonas at freesources.org
Mon Feb 18 12:51:24 UTC 2008

On 17/02/2008 Kapil Hari Paranjape wrote:
> Package: cryptsetup
> Version: 2:1.0.6~pre1-1
> Severity: wishlist
> Hello,
> The hook script /usr/share/initramfs-tools/cryptroot
> does not check for "LABEL=" entries in /etc/fstab.
> Such a LABEL= entry *could* point to a root filesystem that
> is on an dm-crypt'ed device so it should be added to 
> /etc/initramfs/conf.d/cryptroot --- but it currently is not.

Hey Kapil,

cryptroot indeed checks for the source device being specified by LABEL=:

                if [ ${cryptsource#UUID=} != $cryptsource ]; then
                elif [ ${cryptsource#LABEL=} != $cryptsource ]; then

So you're safe to configure the source device using UUID= or LABEL= in

Maybe I don't understand your request, as you talk about /etc/fstab,
which not used by cryptdisks and initramfs cryptroot script at all.

Or do you mean that the label of the source device could be used in
/etc/fstab? That would be hard to support, as /etc/fstab requires the
device with the filesystem, not the encrypted source device. And
dm-crypt source and target devices have neither the same LABEL nor the
same UUID.

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