diff options
Diffstat (limited to 'gnu/build/file-systems.scm')
| -rw-r--r-- | gnu/build/file-systems.scm | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/gnu/build/file-systems.scm b/gnu/build/file-systems.scm index c58d23cfbd..377bec278e 100644 --- a/gnu/build/file-systems.scm +++ b/gnu/build/file-systems.scm @@ -323,6 +323,10 @@ corresponds to the symbols listed in FLAGS." (() 0)))) +(define (regular-file? file-name) + "Return #t if FILE-NAME is a regular file." + (eq? (stat:type (stat file-name)) 'regular)) + (define* (mount-file-system spec #:key (root "/root")) "Mount the file system described by SPEC under ROOT. SPEC must have the form: @@ -339,7 +343,16 @@ run a file system check." (flags (mount-flags->bit-mask flags))) (when check? (check-file-system source type)) - (mkdir-p mount-point) + + ;; Create the mount point. Most of the time this is a directory, but + ;; in the case of a bind mount, a regular file may be needed. + (if (and (= MS_BIND (logand flags MS_BIND)) + (regular-file? source)) + (begin + (mkdir-p (dirname mount-point)) + (call-with-output-file mount-point (const #t))) + (mkdir-p mount-point)) + (mount source mount-point type flags options) ;; For read-only bind mounts, an extra remount is needed, as per |