Public bug reported:
[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.
** Affects: ubuntu-core-initramfs
Importance: Undecided
Status: New
** Affects: systemd (Ubuntu)
Importance: Undecided
Status: New
** Affects: systemd (Ubuntu Xenial)
Importance: Undecided
Status: New
** Affects: systemd (Ubuntu Bionic)
Importance: Undecided
Status: New
** Affects: systemd (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: systemd (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: systemd (Ubuntu Xenial)
Importance: Undecided
Status: New
** Also affects: systemd (Ubuntu Bionic)
Importance: Undecided
Status: New
** Also affects: ubuntu-core-initramfs
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1878969
Title:
time-epoch never changes in SRUs
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