Motivation:
Currently, when setting the default boot pattern, boot assessment status
is not taken into account. This means that with boot assessment enabled,
when an explicit boot entry is configured as the default entry using an
EFI var, as is common for instance in A/B boot schemes, the configured
entry will be booted indefinitly, regardless of the entry's boot
assessment status.
In order to allow for this use case in combination with boot assessment,
we introduce a new `preferred` keyword, both in the config file and in the
bootctl CLI, that acts very similar to the existing `default` keyword but
takes boot assessment into account and never selects any entries that
have been marked as bad.
If the preferred pattern does not resolve to any bootable entry, and a
default pattern is also specified, then the default pattern will be
considered next, and we may then still select a known-bad entry to be
booted.
Fixes: https://github.com/systemd/systemd/issues/31215
Fixes: https://github.com/systemd/systemd/issues/40192
Add support for a sysfail boot entry. Sysfail boot entries can be
used for optional tweaking the automatic selection order in case a
failure state of the system in some form is detected (boot firmware
failure etc).
The EFI variable `LoaderEntrySysFail` holds the boot loader entry to
be used in the event of a system failure. If a failure occurs, the reason
will be stored in the `LoaderSysFailReason` EFI variable.
sysfail_check() expected to be extented to support possible
conditions when we should boot sysfail("recovery") boot entry.
Signed-off-by: Igor Opaniuk <igor.opaniuk@foundries.io>
This reverts commit 5e8ff010a1.
This broke all the URLs, we can't have that. (And actually, we probably don't
_want_ to make the change either. It's nicer to have all the pages in one
directory, so one doesn't have to figure out to which collection the page
belongs.)