diff options
Diffstat (limited to 'gnu/installer/final.scm')
| -rw-r--r-- | gnu/installer/final.scm | 30 |
1 files changed, 24 insertions, 6 deletions
diff --git a/gnu/installer/final.scm b/gnu/installer/final.scm index 044f79372b..069426a3b8 100644 --- a/gnu/installer/final.scm +++ b/gnu/installer/final.scm @@ -1,6 +1,6 @@ ;;; GNU Guix --- Functional package management for GNU ;;; Copyright © 2018, 2020 Mathieu Othacehe <m.othacehe@gmail.com> -;;; Copyright © 2019, 2020 Ludovic Courtès <ludo@gnu.org> +;;; Copyright © 2019, 2020, 2022 Ludovic Courtès <ludo@gnu.org> ;;; ;;; This file is part of GNU Guix. ;;; @@ -114,6 +114,8 @@ it can interact with the rest of the system." ;; Catch SIGINT and kill the container process. (sigaction SIGINT (lambda (signum) + ;: FIXME: Use of SIGKILL prevents the dynamic-wind exit handler of + ;; THUNK to run. (false-if-exception (kill pid SIGKILL)))) @@ -196,14 +198,16 @@ or #f. Return #t on success and #f on failure." ;; the loaded cow-store locale files will prevent umounting. (install-locale locale) - ;; Save the database, so that it can be restored once the - ;; cow-store is umounted. + ;; Stop the daemon and save the database, so that it can be + ;; restored once the cow-store is umounted. + (stop-service 'guix-daemon) (copy-file database-file saved-database) + + (installer-log-line "mounting copy-on-write store") (mount-cow-store (%installer-target-dir) backing-directory)) (lambda () ;; We need to drag the guix-daemon to the container MNT ;; namespace, so that it can operate on the cow-store. - (stop-service 'guix-daemon) (start-service 'guix-daemon (list (number->string (getpid)))) (setvbuf (current-output-port) 'none) @@ -213,11 +217,25 @@ or #f. Return #t on success and #f on failure." (set! ret (run-command install-command #:tty? #t))) (lambda () - ;; Restart guix-daemon so that it does no keep the MNT namespace + ;; Stop guix-daemon so that it does no keep the MNT namespace ;; alive. - (restart-service 'guix-daemon) + (stop-service 'guix-daemon) + + ;; Restore the database and restart it. As part of restoring the + ;; database, remove the WAL and shm files in case they were left + ;; behind after guix-daemon was stopped. Failing to do so, + ;; sqlite might behave as if transactions that appear in the WAL + ;; file were committed. (See <https://www.sqlite.org/wal.html>.) + (installer-log-line "restoring store database from '~a'" + saved-database) (copy-file saved-database database-file) + (for-each (lambda (suffix) + (false-if-exception + (delete-file (string-append database-file suffix)))) + '("-wal" "-shm")) + (start-service 'guix-daemon) ;; Finally umount the cow-store and exit the container. + (installer-log-line "unmounting copy-on-write store") (unmount-cow-store (%installer-target-dir) backing-directory) (assert-exit ret)))))))) |