Hello Dan,
Thanks a lot for the bug report. > The dump was uploaded as installer-dump-11a1087c. As you are the first one reporting an installer bug using the new dump mechanism, a small precision: the dump can be downloaded this way: --8<---------------cut here---------------start------------->8--- mathieu@meije ~$ wget -qO- dump.guix.gnu.org/download/installer-dump-11a1087c | tar xvz dump.2022-09-21.05.57.10/syslog dump.2022-09-21.05.57.10/installer-result dump.2022-09-21.05.57.10/installer-backtrace dump.2022-09-21.05.57.10/dmesg --8<---------------cut here---------------end--------------->8--- It looks like the issue is: --8<---------------cut here---------------start------------->8--- Sep 21 05:45:33 localhost installer[548]: substitute: ^Msubstitute: ^[[Kupdating substitutes from 'https://ci.guix.gnu.org'... 0.0%Backtrace: Sep 21 05:45:33 localhost installer[548]: substitute: 14 (primitive-load "/gnu/store/hsvz87ld2q231g3pqg62a0bwr4j…") Sep 21 05:45:33 localhost installer[548]: substitute: In guix/ui.scm: Sep 21 05:45:33 localhost installer[548]: substitute: 2263:7 13 (run-guix . _) Sep 21 05:45:33 localhost installer[548]: substitute: 2226:10 12 (run-guix-command _ . _) Sep 21 05:45:33 localhost installer[548]: substitute: In ice-9/boot-9.scm: Sep 21 05:45:33 localhost installer[548]: substitute: 1752:10 11 (with-exception-handler _ _ #:unwind? _ # _) Sep 21 05:45:33 localhost installer[548]: substitute: 1752:10 10 (with-exception-handler _ _ #:unwind? _ # _) Sep 21 05:45:33 localhost installer[548]: substitute: In guix/scripts/substitute.scm: Sep 21 05:45:33 localhost installer[548]: substitute: 763:18 9 (_) Sep 21 05:45:33 localhost installer[548]: substitute: 348:26 8 (process-query #<output: file 4> _ #:cache-urls _ #:acl _) Sep 21 05:45:33 localhost installer[548]: substitute: In guix/substitutes.scm: Sep 21 05:45:33 localhost installer[548]: substitute: 365:27 7 (lookup-narinfos/diverse _ _ #<procedure 7f4686537580 …> …) Sep 21 05:45:33 localhost installer[548]: substitute: 322:31 6 (lookup-narinfos "https://ci.guix.gnu.org" _ # _ # _) Sep 21 05:45:33 localhost installer[548]: substitute: 245:26 5 (fetch-narinfos _ _ #:open-connection _ # _) Sep 21 05:45:33 localhost installer[548]: substitute: In ice-9/boot-9.scm: Sep 21 05:45:33 localhost installer[548]: substitute: 1685:16 4 (raise-exception _ #:continuable? _) Sep 21 05:45:33 localhost installer[548]: substitute: 1685:16 3 (raise-exception _ #:continuable? _) Sep 21 05:45:33 localhost installer[548]: substitute: 1780:13 2 (_ #<&compound-exception components: (#<&error> #<&orig…>) Sep 21 05:45:33 localhost installer[548]: substitute: 1685:16 1 (raise-exception _ #:continuable? _) Sep 21 05:45:33 localhost installer[548]: substitute: 1685:16 0 (raise-exception _ #:continuable? _) Sep 21 05:45:33 localhost installer[548]: substitute: Sep 21 05:45:33 localhost installer[548]: substitute: ice-9/boot-9.scm:1685:16: In procedure raise-exception: Sep 21 05:45:33 localhost installer[548]: substitute: In procedure write_wait_fd: unimplemented Sep 21 05:45:33 localhost installer[548]: guix system: error: `/gnu/store/hsvz87ld2q231g3pqg62a0bwr4jq5rb6-guix-command substitute' died unexpectedly Sep 21 05:45:33 localhost installer[548]: command ("guix" "system" "init" "--fallback" "/mnt/etc/config.scm" "/mnt") exited with value 1 --8<---------------cut here---------------end--------------->8--- This is an unfixed bug reported here: https://issues.guix.gnu.org/56005 Then the final phase is retried and fails this way: --8<---------------cut here---------------start------------->8--- Sep 21 05:57:10 localhost vmunix: [ 1295.546730] /dev/mapper/cryptroot: Can't open blockdev Sep 21 05:57:10 localhost installer[426]: mounting "/dev/mapper/cryptroot" on "/mnt/" Sep 21 05:57:10 localhost installer[426]: crashing due to uncaught exception: system-error ("mount" "mount ~S on ~S: ~A" ("/dev/mapper/cryptroot" "/mnt/" "No such file or directory") (2)) --8<---------------cut here---------------end--------------->8--- The first issue is most likely transient and you might have better luck just by retrying. In the meantime I'll try to understand why the final phase retry fails. Thanks, Mathieu