[pkg-cryptsetup-devel] Bug#918008: Bug#918008: cryptsetup-run: busy on shutdown for root (on lvm) on crypt

[Guilhem Moulin]

On Wed, 02 Jan 2019 at 13:16:41 +0100, Thorsten Glaser wrote:
> In our use case, we have / on LVM on crypto, so this is multiply
> indirect anyway.

No problem with that.  (You could also throw MD in that stack, and apply
an arbitrary permutation.)  We have this logic in our initramfs hook
already (to detect which device(s) needs to be open at initramfs stage), 
cf. #916649 message #44.

> I’d be happy to have an option for the fourth field of crypttab(5) in
> which I can say “ignore this on shutdown, it contains the root
> filesystem or something else needed”.

I'm personally quite reluctant to add new crypttab(5) options that
further increase the difference with other implementations, such as
systemd-cryptsetup-generator(8).

-- 
Guilhem.
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