Hi Efraim, thanks for helping me!
This is what I see when I run `which -a guix` as a user, and when run via sudo. I do reconfigure the system with `sudo guix ...`. I used to as root. Not sure if that matters. [roman@m1 guix]$ which -a guix /home/roman/.config/guix/current/bin/guix /run/current-system/profile/bin/guix /home/roman/.config/guix/current/bin/guix /run/current-system/profile/bin/guix [roman@m1 guix]$ sudo which -a guix /home/roman/.config/guix/current/bin/guix /run/current-system/profile/bin/guix /home/roman/.config/guix/current/bin/guix /run/current-system/profile/bin/guix I have no idea if this is good or bad. :) I don't think I have any `guix` package installed in my profiles. I checked this with: guix package -I | grep guix sudo guix package -I | grep guix Both profiles also seem to have a recent version of the `guix` cli. [roman@m1 guix]$ guix --version guix (GNU Guix) 68edde635d7f60fb48b2b664e55118fdc3021a73 [roman@m1 guix]$ sudo guix --version guix (GNU Guix) 68edde635d7f60fb48b2b664e55118fdc3021a73 Was your thinking that I may got so far back in time somehow that the `guix` package I was using did not contain the `efi-bootloader-chain` variable, and thus `lookup-bootloader-by-name` could not find it? Good idea, I haven't even thought of that. :) But I think that's not the case here, isn't it? Do you have any other ideas? Thanks, Roman. Efraim Flashner <efr...@flashner.co.il> writes: > On Fri, Sep 27, 2024 at 08:16:16AM +0200, Roman Scherer wrote: >> >> Hello Guix, >> >> I'm using a Guix system with the efi-bootloader-chain [1]. The chain >> loads m1n1 (the Asahi Linux boot loader), u-boot and then grub. >> >> A system roll-back used to work fine, but it stopped to work a while >> ago. I'm not sure when that happened, because I rarley needed to >> roll-back. But now that I don't have it anymore, I'm a bit nervous. >> >> When I do a roll-back, this is what happens: >> >> ``` >> $ sudo guix system roll-back >> Password: >> guix system: error: efi-bootloader-chain: no such bootloader >> ``` >> >> It looks like the efi-bootloader-chain can't be found in the >> %bootloaders variable of the (gnu bootloader) module. But that seems >> strange, since it is defined in the same file (just a bit later). >> >> Any ideas? >> >> Thanks, Roman. >> >> [1] >> https://github.com/asahi-guix/channel/blob/main/modules/asahi/guix/bootloader/m1n1.scm > > What do you get from `which -a guix`? Make sure you haven't installed > guix (the package) into a profile and are slowly making your way > backwards in time each time you reconfigure.
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