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[Bug 1878969] Re: time-epoch never changes in SRUs

 

This bug was fixed in the package systemd - 245.5-3ubuntu1

---------------
systemd (245.5-3ubuntu1) groovy; urgency=medium

  [ Dan Streetman ]
  * Hotadd only offline memory and CPUs (LP: #1876018)
    File: debian/extra/rules-ubuntu/40-vm-hotadd.rules
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=dc68569fb46b04791202a40326003799becae859

  [ Balint Reczey ]
  * Merge to Ubuntu from Debian unstable
  - Dropped changes:
    * Cherry-pick fix from upstream master to adjust UseGateway= default
  * journald: stream pid change newline fix (LP: #1875708)
    Files:
    - debian/patches/debian/fsckd-daemon-for-inter-fsckd-communication.patch
    - debian/patches/lp1875708/journald-Increase-stdout-buffer-size-sooner-when-almost-f.patch
    - debian/patches/lp1875708/journald-rework-end-of-line-marker-handling-to-use-a-fiel.patch
    - debian/patches/lp1875708/journald-rework-pid-change-handling.patch
    - debian/patches/lp1875708/journald-use-log_warning_errno-where-appropriate.patch
    - debian/patches/lp1875708/journald-use-the-fact-that-client_context_release-returns.patch
    - debian/patches/lp1875708/man-document-the-new-_LINE_BREAK-type.patch
    - debian/patches/lp1875708/socket-util-introduce-type-safe-dereferencing-wrapper-CMS.patch
    - debian/patches/lp1875708/test-Add-a-test-case-for-15654.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=95302fbe53202bdac33f86031aa56026444a92d3

  [ Dimitri John Ledkov ]
  * meson: initialize time-epoch to reproducible builds compatible value
    (LP: #1878969)
    File: debian/patches/meson-initialize-time-epoch-to-reproducible-builds-compat.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=6785dfd98f81dfe3e3d5273511ec33b196ddb0c3

systemd (245.5-3) unstable; urgency=medium

  [ Michael Biebl ]
  * Bump priority of libnss-systemd to standard
  * logind: avoid shadow lookups when doing userdb client side
  * Disable DNSSEC support by default in resolved.
    The upstream default, DNSSEC=allow-downgrade can lead to compatibility
    issues with certain network access points. Previously, DNSSEC support
    was only turned off when built for a stable Debian release, but it is
    safer and more consistent to just generally change the default to
    DNSSEC=no. (Closes: #959996)
  * Bump debhelper compatibility level to 13.
    Use the debhelper-compat package to declare the compatibility level and
    drop debian/compat.
  * Convert to dh_installsystemd and disable dh_installsystemduser
  * Drop custom initramfs update code.
    Now handled by dh_installinitramfs which is enabled by default in compat
    level 12 and above.

  [ Dan Streetman ]
  * Cherry-pick fix from upstream master to adjust UseGateway= default
    - network: change UseGateway= default to UseRoutes= setting
    - network: honor SetDNSRoutes= even if UseGateway=False
    (LP: #1867375)

  [ Topi Miettinen ]
  * Delete empty lines at end of file.
    Upstream commit hooks don't allow empty lines and of course they serve no
    purpose.

 -- Balint Reczey <rbalint@xxxxxxxxxx>  Tue, 19 May 2020 19:43:50 +0200

** Changed in: systemd (Ubuntu)
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1878969

Title:
  time-epoch never changes in SRUs

Status in ubuntu-core-initramfs:
  New
Status in systemd package in Ubuntu:
  Fix Released
Status in systemd source package in Xenial:
  New
Status in systemd source package in Bionic:
  New
Status in systemd source package in Focal:
  New

Bug description:
  [Impact]

   * Systems without hwclock come up with a fixed time epoch which is not updated in SRUs
   * Ideally booting with a newer built of systemd should move time epoch to be at least when systemd was last built. For example to the value of SOURCE_DATE_EPOCH.

  [Test Case]

   * Boot without network NTP or hwclock
   * Observe that the epoch is the same as the time when NEWS entry in the systemd source code was last touched.
   * Boot newer update of systemd, observe that the time epoch is at least 2020

  [Regression Potential]

   * Bad epoch, may result in unable to perform TLS connections,
  validated GPG signatures, and snapd assertions. Changing epoch to be
  more recent is desired. Some machines may rely on the fact that
  "bionic" without hwclock always comes up in year 2018. But in practice
  that is incorrect thing to do.

  [Other Info]
   
   * By default

  option('time-epoch', type : 'integer', value : '-1',
         description : 'time epoch for time clients')

  in systemd is set to the modification time of the NEW entry
  time_epoch = run_command(stat, '-c', '%Y', NEWS).stdout().to_int()

  If available, it should be set to SOURCE_DATE_EPOCH=1585051767 value
  to be compliant with the https://reproducible-
  builds.org/docs/timestamps/ specification.

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References