[pkg-cryptsetup-devel] Bug#981405: Bug#981405: man crypttab file conflict with systemd

[Guilhem Moulin]

Hi Michael,

On Sat, 30 Jan 2021 at 18:05:23 +0100, Michael Biebl wrote:
> This is unfortunate though. Since systemd is our default init system,
> the man page for /etc/crypttab should reflect what's supported.

In my view it's more nuanced than this: our default initramfs is
initramfs-tools, and AFAIK the only “guided” way to get disk encryption
from d-i/partman-crypto yields something involving cryptsetup-initramfs
only, not systemd-cryptsetup at .service.  I don't have metrics of course,
but I therefore believe that crypttab(5) from src:cryptsetup is more
likely to be relevant to users than the one from systemd.

> I notice, that the crypttab man page in src:cryptsetup is a Debian
> specific addition (debian/doc/crypttab.xml).

We're upstream for the stuff that hook into initramfs-tools for
unlocking at initramfs stage (and also the sysvinit scripts).

In mid-2018 we added a section “on different crypttab formats”
explaining the scope of our manual page and even included a pointer to
https://www.freedesktop.org/software/systemd/man/crypttab.html .  If
systemd were to ship its crypttab manual under a different name or
location we could add the offline URL there too.

Cheers,
-- 
Guilhem.
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