Package: shim-signed Version: 1.34~1+deb10u1+15.4-2~deb10u1 Severity: serious X-Debbugs-Cc: none, Tollef Fog Heen <tfh...@err.no>
Looks like postinst is poking into /sys/firmware/efi, which doesn't exist on a non-UEFI system. Preparing to unpack .../shim-signed_1.34~1+deb10u1+15.4-2~deb10u1_amd64.deb ... Unpacking shim-signed:amd64 (1.34~1+deb10u1+15.4-2~deb10u1) over (1.33+15+1533136590.3beb971-7) ... Preparing to unpack .../shim-signed-common_1.34~1+deb10u1+15.4-2~deb10u1_all.deb ... Unpacking shim-signed-common (1.34~1+deb10u1+15.4-2~deb10u1) over (1.33+15+1533136590.3beb971-7) ... Preparing to unpack .../shim-unsigned_15.4-3~deb10u1_amd64.deb ... Unpacking shim-unsigned (15.4-3~deb10u1) over (15.4-2~deb10u1) ... Setter opp shim-signed:amd64 (1.34~1+deb10u1+15.4-2~deb10u1) ... cat: /sys/firmware/efi/fw_platform_size: No such file or directory dpkg: error processing package shim-signed:amd64 (--configure): installed shim-signed:amd64 package post-installation script subprocess returned error exit status 1 Setter opp shim-signed-common (1.34~1+deb10u1+15.4-2~deb10u1) ... No DKMS packages installed: not changing Secure Boot validation state. Setter opp shim-unsigned (15.4-3~deb10u1) ... Det oppsto feil ved behandling av: shim-signed:amd64 needrestart is being skipped since dpkg has failed E: Sub-process /usr/bin/dpkg returned an error code (1) (It's a fair question to ask «why are you installing it here?», in this particular case, it's a bug, but one could very well be doing this as a part of migrating from legacy to UEFI boot.) -- Tollef Fog Heen UNIX is user friendly, it's just picky about who its friends are