Bug#782522: Skip file system check if already done by initramfs

[Michael Biebl]

Package: systemd
Version: 215-15
Severity: important
Tags: patch

Since version 0.117, initramfs-tools will fsck and mount / (and /usr, if
on a separate file system) in the initramfs.
These changes will be part of jessie.

With ext[234] this has some unpleasant side-effects though, if the
RTC is set to local time and not UTC.
A workaround has been added for new installations [2], which disables
the e2fsck superblock time check. Upgraded systems won't have such a
/etc/e2fsck.conf though.

I therefore propose that we skip the fsck for / and /usr altogether, if
already done by the initramfs and asked for flag files to be created
[3] in that case.

Attached is a patch, which makes use of those flag files.

Martin, I'd especially appreciate your review here, as I'd like to
upload this very soon.

This patch makes
debian/patches/fstab-generator-don-t-rely-on-usr-being-mounted-in-t.patch
obsolete.

I tested this patch successfully with both initramfs-tools 0.119 and 0.120.

Michael

[1] https://packages.qa.debian.org/i/initramfs-tools/news/20140925T091944Z.html
[2] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=767040
[3] http://lists.alioth.debian.org/pipermail/pkg-systemd-maintainers/2015-April/006741.html

-- Package-specific info:

-- System Information:
Debian Release: 8.0
  APT prefers unstable
  APT policy: (500, 'unstable'), (200, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.16.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_DE.utf8, LC_CTYPE=de_DE.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages systemd depends on:
ii  acl             2.2.52-2
ii  adduser         3.113+nmu3
ii  initscripts     2.88dsf-59
ii  libacl1         2.2.52-2
ii  libaudit1       1:2.4-1+b1
ii  libblkid1       2.25.2-6
ii  libc6           2.19-17
ii  libcap2         1:2.24-8
ii  libcap2-bin     1:2.24-8
ii  libcryptsetup4  2:1.6.6-5
ii  libgcrypt20     1.6.3-2
ii  libkmod2        20-1
ii  liblzma5        5.1.1alpha+20120614-2+b3
ii  libpam0g        1.1.8-3.1
ii  libselinux1     2.3-2
ii  libsystemd0     215-15
ii  mount           2.25.2-6
ii  sysv-rc         2.88dsf-59
ii  udev            215-15
ii  util-linux      2.25.2-6

Versions of packages systemd recommends:
ii  dbus            1.8.16-1
ii  libpam-systemd  215-15

Versions of packages systemd suggests:
ii  systemd-ui  3-3

-- Configuration Files:
/etc/dbus-1/system.d/org.freedesktop.network1.conf 162e9a90d8f824f79ef2c6390827ec7b [Errno 2] Datei oder Verzeichnis nicht gefunden: u'/etc/dbus-1/system.d/org.freedesktop.network1.conf 162e9a90d8f824f79ef2c6390827ec7b'
/etc/dbus-1/system.d/org.freedesktop.resolve1.conf 6969148b4616c56a5c9065cec5ab0775 [Errno 2] Datei oder Verzeichnis nicht gefunden: u'/etc/dbus-1/system.d/org.freedesktop.resolve1.conf 6969148b4616c56a5c9065cec5ab0775'
/etc/systemd/journal-upload.conf fbc67bdd554f87d2f189c1a5fbdcfb27 [Errno 2] Datei oder Verzeichnis nicht gefunden: u'/etc/systemd/journal-upload.conf fbc67bdd554f87d2f189c1a5fbdcfb27'
/etc/systemd/journald.conf changed [not included]

-- no debconf information
-------------- next part --------------
A non-text attachment was scrubbed...
Name: skip-fsck.diff
Type: text/x-diff
Size: 1052 bytes
Desc: not available
URL: <http://lists.alioth.debian.org/pipermail/pkg-systemd-maintainers/attachments/20150413/6a948112/attachment.diff>