diff options
| -rw-r--r-- | doc/guix.texi | 10 | ||||
| -rw-r--r-- | gnu/build/linux-boot.scm | 55 |
2 files changed, 46 insertions, 19 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index ce44eb3b47..dc6cb9842e 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -34973,6 +34973,16 @@ 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 rootfstype=@var{type} +Set the type of the root file system. It overrides the @code{type} +field of the root file system specified via the @code{operating-system} +declaration, if any. + +@item rootflags=@var{options} +Set the mount @emph{options} of the root file system. It overrides the +@code{options} field of the root file system specified via the +@code{operating-system} declaration, if any. + @item fsck.mode=@var{mode} Whether to check the @var{root} file system for errors before mounting it. @var{mode} is one of @code{skip} (never check), @code{force} (always diff --git a/gnu/build/linux-boot.scm b/gnu/build/linux-boot.scm index cfa1ab2fcb..7d41537652 100644 --- a/gnu/build/linux-boot.scm +++ b/gnu/build/linux-boot.scm @@ -500,9 +500,9 @@ LINUX-MODULE-DIRECTORY, then installing KEYMAP-FILE with 'loadkeys' (if KEYMAP-FILE is true), then setting up QEMU guest networking if QEMU-GUEST-NETWORKING? is true, calling PRE-MOUNT, mounting the file systems specified in MOUNTS, and finally booting into the new root if any. The initrd -supports kernel command-line parameters 'gnu.load' and 'gnu.repl'. It also +supports the kernel command-line options 'gnu.load' and 'gnu.repl'. It also honors a subset of the Linux kernel command-line parameters such as -'fsck.mode', 'resume', 'root' and 'rootdelay'. +'fsck.mode', 'resume', 'rootdelay', rootflags and rootfstype. Mount the root file system, specified by the 'root' command-line argument, if any. @@ -538,13 +538,30 @@ upon error." ;; over the ‘device’ field of the root <file-system> record. (root-device (and=> (find-long-option "root" args) device-string->file-system-device)) - (root-fs (or (find root-mount-point? mounts) - ;; Fall back to fictitious defaults. - (file-system (device (or root-device "/dev/root")) - (mount-point "/") - (type "ext4")))) + (rootfstype (find-long-option "rootfstype" args)) + (rootflags (find-long-option "rootflags" args)) + (root-fs* (find root-mount-point? mounts)) (fsck.mode (find-long-option "fsck.mode" args))) + (unless (or root-fs* (and root-device rootfstype)) + (error "no root file system or 'root' and 'rootfstype' parameters")) + + ;; If present, ‘root’ on the kernel command line takes precedence over + ;; the ‘device’ field of the root <file-system> record; likewise for + ;; the 'rootfstype' and 'rootflags' arguments. + (define root-fs + (if root-fs* + (file-system + (inherit root-fs*) + (device (or root-device (file-system-device root-fs*))) + (type (or rootfstype (file-system-type root-fs*))) + (options (or rootflags (file-system-options root-fs*)))) + (file-system + (device root-device) + (mount-point "/") + (type rootfstype) + (options rootflags)))) + (define (check? fs) (match fsck.mode ("skip" #f) @@ -616,18 +633,18 @@ the root file system...\n" root-delay) (setenv "EXT2FS_NO_MTAB_OK" "1") - (if root-device - (mount-root-file-system (canonicalize-device-spec root-device) - (file-system-type root-fs) - #:volatile-root? volatile-root? - #:flags (mount-flags->bit-mask - (file-system-flags root-fs)) - #:options (file-system-options root-fs) - #:check? (check? root-fs) - #:skip-check-if-clean? - (skip-check-if-clean? root-fs) - #:repair (repair root-fs)) - (mount "none" "/root" "tmpfs")) + ;; Mount the root file system. + (mount-root-file-system (canonicalize-device-spec + (file-system-device root-fs)) + (file-system-type root-fs) + #:volatile-root? volatile-root? + #:flags (mount-flags->bit-mask + (file-system-flags root-fs)) + #:options (file-system-options root-fs) + #:check? (check? root-fs) + #:skip-check-if-clean? + (skip-check-if-clean? root-fs) + #:repair (repair root-fs)) ;; Mount the specified non-root file systems. (for-each (lambda (fs) |