Hello Giovanni! I've finally reboot the machine, so am I sharing the information requested: Giovanni Biscuolo writes: > Hi Maxim, > > I'd "debug" the issue trying to compare my Debian system config with > yours since I'm also using a BTRFS RAID1 filesystem on LUKS. Sounds useful! [...] > Please could you also provide the result of "lsblk -f"? NAME FSTYPE FSVER LABEL UUID FSAVAIL FSUSE% MOUNTPOINT sda sda1 sda2 crypto_LU 0792432c-78d8-4dcc-87c5-30200c3d02db cryptroot btrfs my-root 2e97fbbd-fa4e-4858-948b-b3a89278a39b 201.2G 77% /var/lib/dock sdb sdb1 sdb2 crypto_LU a9aead40-9d01-4f7a-bb83-be70dd192b7b cryptroot-mirror btrfs my-root 2e97fbbd-fa4e-4858-948b-b3a89278a39b sdc sdc1 sdc2 crypto_LU f0afd5c9-da70-46a7-9c6f-5d22913638bf cryptroot-mirror2 btrfs my-root 2e97fbbd-fa4e-4858-948b-b3a89278a39b sdd crypto_LU f04928db-90aa-458c-8908-036a620b74f6 luks-f04928db-90aa-458c-8908-036a620b74f6 btrfs Seagate2TB 231e9e86-e841-4c97-81f1-013a2b8d99c2 1.6T 12% /media/maxim/ sr0 sr1 zram0 swap 76423fb7-9d60-47fc-b64c-313f0a7b1f55 [SWAP] --8<---------------cut here---------------start------------->8--- The Btrfs file system in my case is labeled 'my-root' and composed of 3 drives in a raid1c3 btrfs array (3 copies). @root is a subvolume on which the root file system lives. > This is (part of) my disks layout: > > > sdc > ..sdc1 > ..sdc2 vfat F6D8-67E3 470.8M 1% /boot/efi > ..sdc3 crypto_L e554b806-19ac-48b2-b521-b4e89839a756 > . ..crypt_swap01 > . swap a43ce70c-dd35-47d8-a2ef-ef9d3c6d0885 [SWAP] > ..sdc4 crypto_L 820bfdf7-46f7-46f5-8536-7e1b0f04e70e > ..crypt_btrfs01_03 > btrfs btrfs_pool01 82afe97a-bb97-4b3d-90cb-93a058185b97 > sdd > ..sdd1 > ..sdd2 > ..sdd3 crypto_L 960aa919-182b-4604-a8be-8477c86386cc > . ..crypt_swap02 > . swap 3f8f6974-05a9-4047-993a-c4ccb27eaa1d [SWAP] > ..sdd4 crypto_L c590c62e-6ac8-418c-9ea7-7ae9c79058c8 > ..crypt_btrfs01_04 > btrfs btrfs_pool01 82afe97a-bb97-4b3d-90cb-93a058185b97 802.3G 57% /mnt/btrfs > > > btrfs_pool01 is my BTRFS RAID1 filesystem, it includes /boot and / > (root) and is on two ancrypted LUKS partitions, as you can see. --8<---------------cut here---------------end--------------->8--- > Also, please what's your grub.cfg? Here it is: --8<---------------cut here---------------start------------->8--- # This file was generated from your Guix configuration. Any changes # will be lost upon reconfiguration. # Set 'root' to the partition that contains /gnu/store. search --file --set /@root/gnu/store/wlf9ccsl9pmch1dyv5x8c2gdngwn9m5i-grub-image.png terminal_output console insmod png if background_image /@root/gnu/store/wlf9ccsl9pmch1dyv5x8c2gdngwn9m5i-grub-image.png; then set color_normal=light-gray/black set color_highlight=yellow/black else set menu_color_normal=cyan/blue set menu_color_highlight=white/blue fi # Localization configuration. # search --file --set /@root/gnu/store/q1cf63j2az4wlajg0caqy4nbndp0mvpm-grub-locales/en@quot.mo set locale_dir=/@root/gnu/store/q1cf63j2az4wlajg0caqy4nbndp0mvpm-grub-locales set lang=en_US insmod keylayouts keymap /@root/gnu/store/25s8pbpv2fnidrgir26mn97g0ciq52gz-grub-keymap.dvorak set default=0 set timeout=5 menuentry "GNU with Linux-Libre 5.13.12" { search --file --set /@root/gnu/store/hvmyb8maz32dy6ra5g68gr4wd08pzq3r-linux-libre-5.13.12/bzImage linux /@root/gnu/store/hvmyb8maz32dy6ra5g68gr4wd08pzq3r-linux-libre-5.13.12/bzImage --root=/dev/mapper/cryptroot --system=/gnu/store/6qa5ga0pkjbmz8ix8gfrpy65zkl16xi7-system --load=/gnu/store/6qa5ga0pkjbmz8ix8gfrpy65zkl16xi7-system/boot quiet snd_hda_intel.dmic_detect=0 modprobe.blacklist=rtl8187 initrd /@root/gnu/store/kllyldndnazfxxrhkabgifx5zvgyz82q-raw-initrd/initrd.cpio.gz } submenu "GNU system, old configurations..." { menuentry "GNU with Linux-Libre 5.13.11 (#275, 2021-08-23 23:17)" { search --file --set /@root/gnu/store/fznnj7bgs46czizzhn186606jgr52qnp-linux-libre-5.13.11/bzImage linux /@root/gnu/store/fznnj7bgs46czizzhn186606jgr52qnp-linux-libre-5.13.11/bzImage --root=/dev/mapper/cryptroot --system=/var/guix/profiles/system-275-link --load=/var/guix/profiles/system-275-link/boot quiet snd_hda_intel.dmic_detect=0 modprobe.blacklist=rtl8187 initrd /@root/gnu/store/g73vj8qy6kfrgmr8gnmmzh2q59cbnf2w-raw-initrd/initrd.cpio.gz } [...] if [ "${grub_platform}" == efi ]; then menuentry "Firmware setup" { fwsetup } fi --8<---------------cut here---------------end--------------->8--- > This is the config of a menuentry of mine: > > > menuentry 'Debian GNU/Linux' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-82afe97a-bb97-4b3d-90cb-93a058185b97' { > load_video > insmod gzio > if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi > insmod part_gpt > insmod cryptodisk > insmod luks > insmod gcry_rijndael > insmod gcry_rijndael > insmod gcry_sha256 > insmod btrfs > cryptomount -u c590c62e6ac8418c9ea77ae9c79058c8 > set root='cryptouuid/c590c62e6ac8418c9ea77ae9c79058c8' > if [ x$feature_platform_search_hint = xy ]; then > search --no-floppy --fs-uuid --set=root --hint='cryptouuid/c590c62e6ac8418c9ea77ae9c79058c8' 82afe97a-bb97-4b3d-90cb-93a058185b97 > else > search --no-floppy --fs-uuid --set=root 82afe97a-bb97-4b3d-90cb-93a058185b97 > fi > echo 'Loading Linux 5.10.0-0.bpo.3-amd64 ...' > linux /debian_root/boot/vmlinuz-5.10.0-0.bpo.3-amd64 root=UUID=82afe97a-bb97-4b3d-90cb-93a058185b97 ro rootflags=subvol=debian_root ip=10.38.2.2::10.38.2.1:255.255.255.0:anemone:eth0:none quiet > echo 'Loading initial ramdisk ...' > initrd /debian_root/boot/initrd.img-5.10.0-0.bpo.3-amd64 > } > > > AFAIU this code (from the snippet above): > > > if [ x$feature_platform_search_hint = xy ]; then > search --no-floppy --fs-uuid --set=root --hint='cryptouuid/c590c62e6ac8418c9ea77ae9c79058c8' 82afe97a-bb97-4b3d-90cb-93a058185b97 > else > search --no-floppy --fs-uuid --set=root 82afe97a-bb97-4b3d-90cb-93a058185b97 > fi > > > sets [1] the root GRUB env variable to the first found device containing > the UUID 82afe97a-bb97-4b3d-90cb-93a058185b97, that is the UUID of my > BTRFS filesystem > > AFAIU (but still not tested) this means that if the device with UUID > c590c62[...] is missing the search ensures that GRUB will find the next > device containing the BTRFS filesystem identified by UUID 82afe97a[...] > > WDYT? [...] >>> Can you please provide the output of the "ls" command and the "set" >>> command from the grub rescue shell? See the attached screenshot of the result: