Command <i>/usr/share/calamares/helpers/calamares-bootloader-config</i> finished with exit code 1.
Output:
Running bootloader-config...
 * Installing grub-efi (uefi)...
Reading package lists...
Building dependency tree...
Reading state information...
The following additional packages will be installed:
  efibootmgr grub-efi-amd64 grub-efi-amd64-bin grub-efi-amd64-signed
  grub-efi-amd64-unsigned grub2-common mokutil shim-helpers-amd64-signed
  shim-signed shim-signed-common shim-unsigned
The following NEW packages will be installed:
  efibootmgr grub-efi grub-efi-amd64 grub-efi-amd64-bin grub-efi-amd64-signed
  grub-efi-amd64-unsigned grub2-common mokutil shim-helpers-amd64-signed
  shim-signed shim-signed-common shim-unsigned
0 upgraded, 12 newly installed, 0 to remove and 0 not upgraded.
Need to get 0 B/5613 kB of archives.
After this operation, 28.5 MB of additional disk space will be used.
Get:1 file:/run/live/medium trixie/main amd64 efibootmgr amd64 18-2 [30.2 kB]
Get:2 file:/run/live/medium trixie/main amd64 grub-efi-amd64-unsigned amd64 2.12-9 [1361 kB]
Get:3 file:/run/live/medium trixie/main amd64 grub-efi-amd64-bin amd64 2.12-9 [1054 kB]
Get:4 file:/run/live/medium trixie/main amd64 grub2-common amd64 2.12-9 [643 kB]
Get:5 file:/run/live/medium trixie/main amd64 grub-efi-amd64 amd64 2.12-9 [46.7 kB]
Get:6 file:/run/live/medium trixie/main amd64 grub-efi amd64 2.12-9 [2372 B]
Get:7 file:/run/live/medium trixie/main amd64 grub-efi-amd64-signed amd64 1+2.12+9 [1363 kB]
Get:8 file:/run/live/medium trixie/main amd64 mokutil amd64 0.7.2-1 [26.7 kB]
Get:9 file:/run/live/medium trixie/main amd64 shim-unsigned amd64 15.8-1 [440 kB]
Get:10 file:/run/live/medium trixie/main amd64 shim-helpers-amd64-signed amd64 1+15.8+1 [301 kB]
Get:11 file:/run/live/medium trixie/main amd64 shim-signed-common all 1.47+15.8-1 [15.2 kB]
Get:12 file:/run/live/medium trixie/main amd64 shim-signed amd64 1.47+15.8-1 [329 kB]
Preconfiguring packages ...
Selecting previously unselected package efibootmgr.
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(Reading database ... 310711 files and directories currently installed.)
Preparing to unpack .../00-efibootmgr_18-2_amd64.deb ...
Unpacking efibootmgr (18-2) ...
Selecting previously unselected package grub-efi-amd64-unsigned.
Preparing to unpack .../01-grub-efi-amd64-unsigned_2.12-9_amd64.deb ...
Unpacking grub-efi-amd64-unsigned (2.12-9) ...
Selecting previously unselected package grub-efi-amd64-bin.
Preparing to unpack .../02-grub-efi-amd64-bin_2.12-9_amd64.deb ...
Unpacking grub-efi-amd64-bin (2.12-9) ...
Selecting previously unselected package grub2-common.
Preparing to unpack .../03-grub2-common_2.12-9_amd64.deb ...
Unpacking grub2-common (2.12-9) ...
Selecting previously unselected package grub-efi-amd64.
Preparing to unpack .../04-grub-efi-amd64_2.12-9_amd64.deb ...
Unpacking grub-efi-amd64 (2.12-9) ...
Selecting previously unselected package grub-efi.
Preparing to unpack .../05-grub-efi_2.12-9_amd64.deb ...
Unpacking grub-efi (2.12-9) ...
Selecting previously unselected package grub-efi-amd64-signed.
Preparing to unpack .../06-grub-efi-amd64-signed_1+2.12+9_amd64.deb ...
Unpacking grub-efi-amd64-signed (1+2.12+9) ...
Selecting previously unselected package mokutil.
Preparing to unpack .../07-mokutil_0.7.2-1_amd64.deb ...
Unpacking mokutil (0.7.2-1) ...
Selecting previously unselected package shim-unsigned:amd64.
Preparing to unpack .../08-shim-unsigned_15.8-1_amd64.deb ...
Unpacking shim-unsigned:amd64 (15.8-1) ...
Selecting previously unselected package shim-helpers-amd64-signed.
Preparing to unpack .../09-shim-helpers-amd64-signed_1+15.8+1_amd64.deb ...
Unpacking shim-helpers-amd64-signed (1+15.8+1) ...
Selecting previously unselected package shim-signed-common.
Preparing to unpack .../10-shim-signed-common_1.47+15.8-1_all.deb ...
Unpacking shim-signed-common (1.47+15.8-1) ...
Selecting previously unselected package shim-signed:amd64.
Preparing to unpack .../11-shim-signed_1.47+15.8-1_amd64.deb ...
Unpacking shim-signed:amd64 (1.47+15.8-1) ...
Setting up efibootmgr (18-2) ...
Setting up mokutil (0.7.2-1) ...
Setting up grub-efi-amd64-signed (1+2.12+9) ...
Setting up grub-efi-amd64-unsigned (2.12-9) ...
Setting up grub2-common (2.12-9) ...
Setting up shim-signed-common (1.47+15.8-1) ...
No DKMS packages installed: not changing Secure Boot validation state.
Setting up grub-efi-amd64-bin (2.12-9) ...
Setting up shim-unsigned:amd64 (15.8-1) ...
Setting up grub-efi-amd64 (2.12-9) ...
Creating config file /etc/default/grub with new version
Setting up shim-helpers-amd64-signed (1+15.8+1) ...
Installing for x86_64-efi platform.
grub-install: error: cannot find a device for /boot/grub (is /dev mounted?).
Failed: grub-install --target=x86_64-efi
WARNING: Bootloader is not properly installed, system may not be bootable
Setting up grub-efi (2.12-9) ...
Setting up shim-signed:amd64 (1.47+15.8-1) ...
Installing for x86_64-efi platform.
grub-install: error: cannot find a device for /boot/grub (is /dev mounted?).
Failed: grub-install --target=x86_64-efi
WARNING: Bootloader is not properly installed, system may not be bootable
No DKMS packages installed: not changing Secure Boot validation state.
Processing triggers for man-db (2.13.1-1) ...
Processing triggers for install-info (7.1.1-1+b1) ...
/usr/sbin/grub-probe: error: cannot find a device for / (is /dev mounted?).