f9d76a8d15
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` contains the sysfail boot loader
entry to use. It can be set using bootctl:
```
$ bootctl set-sysfail sysfail.conf
```
The `LoaderEntrySysFail` EFI variable would be unset automatically
during next boot by `systemd-boot-clear-sysfail.service` if no system
failure occured, otherwise it would be kept as it is and a system
failure reason will be saved to `LoaderSysFailReason` EFI variable.
`sysfail_check()` expected to be extented to support possibleconditions
when we should boot sysfail("recovery") boot entry.
Also add support for using a sysfail boot entry in case of UEFI firmware
capsule update failure [1]. The status of a firmware update is obtained
from the EFI System Resource Table (ESRT), which provides an optional
mechanism for identifying device and system firmware resources for the
purposes of targeting firmware updates to those resources.
Current implementation uses the value of LastAttemptStatus field from
ESRT, which describes the result of the last firmware update attempt for
the firmware resource entry. The field is updated each time an
`UpdateCapsule()` is attempted for an ESRT entry and is preserved across
reboots (non-volatile).
This can be be used in setups with support for A/B OTA updates, where
the boot firmware and Linux/RootFS might be updated synchronously.
The check is activated by adding "sysfail-firmware-upd" to loader.conf
[1]
https://uefi.org/specs/UEFI/2.10/23_Firmware_Update_and_Reporting.html
System and Service Manager
Details
Most documentation is available on systemd's web site.
Assorted, older, general information about systemd can be found in the systemd Wiki.
Information about build requirements is provided in the README file.
Consult our NEWS file for information about what's new in the most recent systemd versions.
Please see the Code Map for information about this repository's layout and content.
Please see the Hacking guide for information on how to hack on systemd and test your modifications.
Please see our Contribution Guidelines for more information about filing GitHub Issues and posting GitHub Pull Requests.
When preparing patches for systemd, please follow our Coding Style Guidelines.
If you are looking for support, please contact our mailing list, join our IRC channel #systemd on libera.chat or Matrix channel
Stable branches with backported patches are available in the stable repo.
We have a security bug bounty program sponsored by the Sovereign Tech Fund hosted on YesWeHack
Repositories with distribution packages built from git main are available on OBS