[pkg-cryptsetup-devel] Bug#841503: cryptsetup: initramfs cryptroot hook fails when /etc/cryptsetup-initramfs/conf-hook does not exist yet

[Raphaël Hertzog]

Package: cryptsetup
Version: 2:1.7.2-4
Severity: serious
Justification: upgrade fails

When cryptsetup is upgraded at the same time than the kernel
and when the kernel is configured before cryptsetup, the
kernel fails to configure with this error:

Paramétrage de linux-image-4.7.0-1-amd64 (4.7.6-1) ...
/etc/kernel/postinst.d/initramfs-tools:
update-initramfs: Generating /boot/initrd.img-4.7.0-1-amd64
/usr/share/initramfs-tools/hooks/cryptroot: 663: .: Can't open /etc/cryptsetup-initramfs/conf-hook
E: /usr/share/initramfs-tools/hooks/cryptroot failed with return 2.
update-initramfs: failed for /boot/initrd.img-4.7.0-1-amd64 with 2.
run-parts: /etc/kernel/postinst.d/initramfs-tools exited with return code 2

The problem is that /etc/cryptsetup-initramfs/conf-hook is a conffile
and it is thus put into place only during the configuration of the
package and not an unpack time.

You should thus improve /usr/share/initramfs-tools/hooks/cryptroot to
tolerate the lack of /etc/cryptsetup-initramfs/conf-hook.

Thank you!

-- Package-specific info:

-- System Information:
Debian Release: stretch/sid
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.7.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages cryptsetup depends on:
ii  cryptsetup-bin         2:1.7.2-4
ii  debconf [debconf-2.0]  1.5.59
ii  dmsetup                2:1.02.133-1
ii  libc6                  2.24-3

Versions of packages cryptsetup recommends:
ii  busybox                                 1:1.22.0-19
ii  console-setup                           1.151
ii  initramfs-tools [linux-initramfs-tool]  0.125
ii  kbd                                     2.0.3-2

Versions of packages cryptsetup suggests:
ii  dosfstools              4.0-2
pn  keyutils                <none>
ii  liblocale-gettext-perl  1.07-3+b1

-- debconf information excluded