Bug#988450: bootctl systemd-efi-options doesn't work
Control: forwarded -1 https://github.com/systemd/systemd/issues/19597 Control: fixed -1 249~rc1-1 Hi Thomas On Thu, 13 May 2021 10:46:04 + =?utf-8?q?Thomas_M=C3=BChlbacher?= wrote: > I will file it upstream. Thanks for helping! Thanks for that. Marking accordingly. It appears this has been fixed in by https://github.com/systemd/systemd/pull/19896 which is part of 249~rc1-1 Marking as fixed for that version. Regards, Michael signature.asc Description: This is a digitally signed message part
Bug#988450: bootctl systemd-efi-options doesn't work
Am 13.05.21 um 12:46 schrieb Thomas Mühlbacher: Hi, yes, I am using GRUB with Secure Boot enabled. SB does apparently make it so the variable does not get cached. So imo, the problem is that the command only even tries to read the variable from the cache and not from `/sys`. I will file it upstream. Thanks for helping! looking a bit more into it, I *guess* systemd-efi-options is only set / cached during boot if you actually use sd-boot and it only shows the currently active boot options. So I'm not actually sure anymore, if this is really a bug or working as expected. If the latter, the man page could be clarified in that regard. So it seems worthwile filing a bug report in any case.
Bug#988450: bootctl systemd-efi-options doesn't work
Hi, yes, I am using GRUB with Secure Boot enabled. SB does apparently make it so the variable does not get cached. So imo, the problem is that the command only even tries to read the variable from the cache and not from `/sys`. I will file it upstream. Thanks for helping! -- Regards, Thomas Mühlbacher
Bug#988450: bootctl systemd-efi-options doesn't work
Control: tags -1 + moreinfo Am 13.05.21 um 11:03 schrieb Thomas Mühlbacher: ```shell # bootctl systemd-efi-options Failed to query SystemdOptions EFI variable: No data available # bootctl systemd-efi-options 'debug' # bootctl systemd-efi-options Failed to query SystemdOptions EFI variable: No data available $ hd /sys/firmware/efi/efivars/SystemdOptions-8cf2644b-4b0b-428f-9387-6d876050dc67 07 00 00 00 64 00 65 00 62 00 75 00 67 00 00 00 |d.e.b.u.g...| 0010 ``` So writing the efi variable to efivars succeeds, but bootctl does not create a corresponding cache entry in /run/systemd/efivars. When it reads the data, it only tries to read the cached entry and fails, as there is none. Did I get that correctly? Sounds like a valid bug to me and I'd suggest you file this upstream. Regards, Michael
Bug#988450: bootctl systemd-efi-options doesn't work
Am 13.05.2021 um 11:24 schrieb Michael Biebl: Am 13.05.2021 um 11:03 schrieb Thomas Mühlbacher: Package: systemd Version: 247.3-5 The `systemd-efi-options` subcommand of `bootctl` fails to read the EFI variable. Even after setting one, which does works. This variable then also actually works when booting, for example the `debug` option is then used by systemd. I am on an AMD Thinkpad E495, however I was also able to reproduce this on an Intel system with a BIOS from a different vendor. Have you booted your system using "systemd-boot" or are you using something like grub? And are you using SecureBoot? Fwiw, I'm not really familiar with systemd-boot (as I don't use it myself). My recommendation would be, that you file this issue upstream at https://github.com/systemd/systemd I'd probably include a debug log when executing those bootctl commands. You can set the log level via systemd-analyze or via the SYSTEMD_LOG_LEVEL= env var. Michael
Bug#988450: bootctl systemd-efi-options doesn't work
Am 13.05.2021 um 11:03 schrieb Thomas Mühlbacher: Package: systemd Version: 247.3-5 The `systemd-efi-options` subcommand of `bootctl` fails to read the EFI variable. Even after setting one, which does works. This variable then also actually works when booting, for example the `debug` option is then used by systemd. I am on an AMD Thinkpad E495, however I was also able to reproduce this on an Intel system with a BIOS from a different vendor. Have you booted your system using "systemd-boot" or are you using something like grub?
Bug#988450: bootctl systemd-efi-options doesn't work
Package: systemd Version: 247.3-5 The `systemd-efi-options` subcommand of `bootctl` fails to read the EFI variable. Even after setting one, which does works. This variable then also actually works when booting, for example the `debug` option is then used by systemd. I am on an AMD Thinkpad E495, however I was also able to reproduce this on an Intel system with a BIOS from a different vendor. ```shell # bootctl systemd-efi-options Failed to query SystemdOptions EFI variable: No data available # bootctl systemd-efi-options 'debug' # bootctl systemd-efi-options Failed to query SystemdOptions EFI variable: No data available $ hd /sys/firmware/efi/efivars/SystemdOptions-8cf2644b-4b0b-428f-9387-6d876050dc67 07 00 00 00 64 00 65 00 62 00 75 00 67 00 00 00 |d.e.b.u.g...| 0010 ``` When using this subcommand to read the variable, from what I can tell, this function is called: https://salsa.debian.org/systemd-team/systemd/-/blob/debian/247.3-5/src/basic/efivars.c#L398 Looking at the code a little, it appears that it only tries to read the EFI variable from `/run/systemd/efivars/`, which appears to be a cache dir for EFI vars to avoid the overhead of reading from `/sys/firmware/efi/efivars/`. However this directory does not exist on my system, even after running the command to set the `SystemdOptions` var. -- Cheers, Thomas Mühlbacher
