Re: [sid] efibootmgr not working on linux 5.10.x & LGA1155
Hi! p...@sojka.co wrote: >On 4/10/21 7:52 PM, Sven Joachim wrote: >> On 2021-04-08 22:30 +0200, Grzesiek wrote: >>> >>> The problem seems to be related to 5.10.x kernels & LGA1155 based systems. >>> >>> 1. On laptop based on i5-8250u efibootmgr works fine (all kernel versions) >>> >>> 2. On systems based on LGA1155 socket (i5-2500k, i7-3770): >>> - kernels 5.10.x: efibootmgr does not work, >>> directory /sys/firmware/efi/efivars is empty >>> - kernel 5.8.0-2: efibootmgr woks as expected >>> >>> On 5.8.0-2 i get: >>> >>> # lsmod | grep efi >>> efivarfs 16384 0 >>> efi_pstore 16384 0 >>> efivars20480 1 efi_pstore >>> >>> There is no efivars.ko in 5.10.x. Maybe that is the problem? >> >> The efivars module has indeed been removed from Debian's 5.10 kernels, >> as it had been deprecated in favor of efivarfs for a while. >> >> Which versions of efibootmgr and libefivar1 do you have installed? > >The problem persists since several months. Now I have: > ># apt-list | grep efi >efibootmgr/unstable,now 17-1 amd64 [installed] >libefiboot1/unstable,now 37-6 amd64 [installed,automatic] >libefivar1/unstable,now 37-6 amd64 [installed,automatic] This line: efivarfs 16384 0 suggests the cause of the problem for you. efibootmgr (and other tools using libefivar) will look into both: * /sys/firmware/efi/vars (the old, deprecated interface that was removed in 5.10) * /sys/firmware/efi/efivars (the new interface, provided by efivarfs) As you have efivarfs loaded but with use-count of 0, that suggests that you don't have the efivarfs pseudo-filesystem mounted. This should normally be automatically mounted on system boot, along with the other pseudo-filesystems like /sys and /proc. -- Steve McIntyre, Cambridge, UK.st...@einval.com "We're the technical experts. We were hired so that management could ignore our recommendations and tell us how to do our jobs." -- Mike Andrews
Re: [sid] efibootmgr not working on linux 5.10.x & LGA1155
On 4/10/21 7:52 PM, Sven Joachim wrote: On 2021-04-08 22:30 +0200, Grzesiek wrote: On 3/18/21 9:55 PM, Sven Joachim wrote: On 2021-03-18 21:03 +0100, Grzesiek Sójka wrote: I noticed recently that efibootmgr stoped working. On all my Sid machines I get the following: # efibootmgr EFI variables are not supported on this system. But if I run Buster (the same hardware) then everything is ok. So this is definitely software problem. I also noticed that the /sys/firmware/efi/efivars directory is empty. Not here, and efibootmgr works for me. Kernel problem? Missing modules? Perhaps the efivarfs module is not loaded. I don not have to load it manually, though. The problem seems to be related to 5.10.x kernels & LGA1155 based systems. 1. On laptop based on i5-8250u efibootmgr works fine (all kernel versions) 2. On systems based on LGA1155 socket (i5-2500k, i7-3770): - kernels 5.10.x: efibootmgr does not work, directory /sys/firmware/efi/efivars is empty - kernel 5.8.0-2: efibootmgr woks as expected On 5.8.0-2 i get: # lsmod | grep efi efivarfs 16384 0 efi_pstore 16384 0 efivars20480 1 efi_pstore There is no efivars.ko in 5.10.x. Maybe that is the problem? The efivars module has indeed been removed from Debian's 5.10 kernels, as it had been deprecated in favor of efivarfs for a while. Which versions of efibootmgr and libefivar1 do you have installed? The problem persists since several months. Now I have: # apt-list | grep efi efibootmgr/unstable,now 17-1 amd64 [installed] libefiboot1/unstable,now 37-6 amd64 [installed,automatic] libefivar1/unstable,now 37-6 amd64 [installed,automatic]
Re: [sid] efibootmgr not working on linux 5.10.x & LGA1155
On 2021-04-08 22:30 +0200, Grzesiek wrote: > On 3/18/21 9:55 PM, Sven Joachim wrote: >> On 2021-03-18 21:03 +0100, Grzesiek Sójka wrote: >> >>> I noticed recently that efibootmgr stoped working. On all my Sid >>> machines I get the following: >>> >>> # efibootmgr >>> EFI variables are not supported on this system. >>> >>> But if I run Buster (the same hardware) then everything is ok. So this >>> is definitely software problem. I also noticed that the >>> /sys/firmware/efi/efivars >>> directory is empty. >> Not here, and efibootmgr works for me. >> >>> Kernel problem? Missing modules? >> Perhaps the efivarfs module is not loaded. I don not have to load >> it >> manually, though. > > The problem seems to be related to 5.10.x kernels & LGA1155 based systems. > > 1. On laptop based on i5-8250u efibootmgr works fine (all kernel versions) > > 2. On systems based on LGA1155 socket (i5-2500k, i7-3770): > - kernels 5.10.x: efibootmgr does not work, > directory /sys/firmware/efi/efivars is empty > - kernel 5.8.0-2: efibootmgr woks as expected > > On 5.8.0-2 i get: > > # lsmod | grep efi > efivarfs 16384 0 > efi_pstore 16384 0 > efivars20480 1 efi_pstore > > There is no efivars.ko in 5.10.x. Maybe that is the problem? The efivars module has indeed been removed from Debian's 5.10 kernels, as it had been deprecated in favor of efivarfs for a while. Which versions of efibootmgr and libefivar1 do you have installed? Cheers, Sven
Re: [sid] efibootmgr not working on linux 5.10.x & LGA1155
On 3/18/21 9:55 PM, Sven Joachim wrote: On 2021-03-18 21:03 +0100, Grzesiek Sójka wrote: I noticed recently that efibootmgr stoped working. On all my Sid machines I get the following: # efibootmgr EFI variables are not supported on this system. But if I run Buster (the same hardware) then everything is ok. So this is definitely software problem. I also noticed that the /sys/firmware/efi/efivars directory is empty. Not here, and efibootmgr works for me. Kernel problem? Missing modules? Perhaps the efivarfs module is not loaded. I don not have to load it manually, though. The problem seems to be related to 5.10.x kernels & LGA1155 based systems. 1. On laptop based on i5-8250u efibootmgr works fine (all kernel versions) 2. On systems based on LGA1155 socket (i5-2500k, i7-3770): - kernels 5.10.x: efibootmgr does not work, directory /sys/firmware/efi/efivars is empty - kernel 5.8.0-2: efibootmgr woks as expected On 5.8.0-2 i get: # lsmod | grep efi efivarfs 16384 0 efi_pstore 16384 0 efivars20480 1 efi_pstore There is no efivars.ko in 5.10.x. Maybe that is the problem? -- Regards Greg
