diff options
| -rw-r--r-- | doc/guix.texi | 7 | ||||
| -rw-r--r-- | gnu/build/file-systems.scm | 6 | ||||
| -rw-r--r-- | gnu/build/linux-boot.scm | 63 |
3 files changed, 36 insertions, 40 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index eef5b703fe..4e02993771 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -26534,9 +26534,10 @@ service activation programs and then spawns the GNU@tie{}Shepherd, the initialization system. @item --root=@var{root} -Mount @var{root} as the root file system. @var{root} can be a -device name like @code{/dev/sda1}, a file system label, or a file system -UUID. +Mount @var{root} as the root file system. @var{root} can be a device +name like @code{/dev/sda1}, a file system label, or a file system UUID. +When unspecified, the device name from the root file system of the +operating system declaration is used. @item --system=@var{system} Have @file{/run/booted-system} and @file{/run/current-system} point to diff --git a/gnu/build/file-systems.scm b/gnu/build/file-systems.scm index b920e8fc62..ad92d8a496 100644 --- a/gnu/build/file-systems.scm +++ b/gnu/build/file-systems.scm @@ -661,8 +661,10 @@ were found." (match spec ((? string?) - ;; Nothing to do, but wait until SPEC shows up. - (resolve identity spec identity)) + (if (string-contains spec ":/") + spec ; do not resolve NFS devices + ;; Nothing to do, but wait until SPEC shows up. + (resolve identity spec identity))) ((? file-system-label?) ;; Resolve the label. (resolve find-partition-by-label diff --git a/gnu/build/linux-boot.scm b/gnu/build/linux-boot.scm index c6f9df5f29..f08bb11514 100644 --- a/gnu/build/linux-boot.scm +++ b/gnu/build/linux-boot.scm @@ -498,25 +498,13 @@ upon error." (define (root-mount-point? fs) (string=? (file-system-mount-point fs) "/")) - (define root-fs-type - (or (any (lambda (fs) - (and (root-mount-point? fs) - (file-system-type fs))) - mounts) - "ext4")) - - (define root-fs-flags - (mount-flags->bit-mask (or (any (lambda (fs) - (and (root-mount-point? fs) - (file-system-flags fs))) - mounts) - '()))) - - (define root-fs-options - (any (lambda (fs) - (and (root-mount-point? fs) - (file-system-options fs))) - mounts)) + (define (device-string->file-system-device device-string) + ;; The "--root=SPEC" kernel command-line option always provides a + ;; string, but the string can represent a device, a UUID, or a + ;; label. So check for all three. + (cond ((string-prefix? "/" device-string) device-string) + ((uuid device-string) => identity) + (else (file-system-label device-string)))) (display "Welcome, this is GNU's early boot Guile.\n") (display "Use '--repl' for an initrd REPL.\n\n") @@ -526,7 +514,21 @@ upon error." (mount-essential-file-systems) (let* ((args (linux-command-line)) (to-load (find-long-option "--load" args)) - (root (find-long-option "--root" args))) + (root-fs (find root-mount-point? mounts)) + (root-fs-type (or (and=> root-fs file-system-type) + "ext4")) + (root-fs-device (and=> root-fs file-system-device)) + (root-fs-flags (mount-flags->bit-mask + (or (and=> root-fs file-system-flags) + '()))) + (root-options (if root-fs + (file-system-options root-fs) + #f)) + ;; --root takes precedence over the 'device' field of the root + ;; <file-system> record. + (root-device (or (and=> (find-long-option "--root" args) + device-string->file-system-device) + root-fs-device))) (when (member "--repl" args) (start-repl)) @@ -561,21 +563,12 @@ upon error." (setenv "EXT2FS_NO_MTAB_OK" "1") - (if root - ;; The "--root=SPEC" kernel command-line option always provides a - ;; string, but the string can represent a device, a UUID, or a - ;; label. So check for all three. - (let ((device-spec (cond ((string-prefix? "/" root) root) - ((uuid root) => identity) - ((string-contains root ":/") #f) ; nfs - (else (file-system-label root))))) - (mount-root-file-system (if device-spec - (canonicalize-device-spec device-spec) - root) - root-fs-type - #:volatile-root? volatile-root? - #:flags root-fs-flags - #:options root-fs-options)) + (if root-device + (mount-root-file-system (canonicalize-device-spec root-device) + root-fs-type + #:volatile-root? volatile-root? + #:flags root-fs-flags + #:options root-options) (mount "none" "/root" "tmpfs")) ;; Mount the specified file systems. |