diff options
Diffstat (limited to 'gnu/build/linux-boot.scm')
-rw-r--r-- | gnu/build/linux-boot.scm | 43 |
1 files changed, 23 insertions, 20 deletions
diff --git a/gnu/build/linux-boot.scm b/gnu/build/linux-boot.scm index ea1971ff9c..b2ed1a8b54 100644 --- a/gnu/build/linux-boot.scm +++ b/gnu/build/linux-boot.scm @@ -26,6 +26,7 @@ #:use-module (ice-9 match) #:use-module (ice-9 ftw) #:use-module (guix build utils) + #:use-module (gnu build linux-modules) #:use-module (gnu build file-systems) #:export (mount-essential-file-systems linux-command-line @@ -34,7 +35,6 @@ configure-qemu-networking bind-mount - load-linux-module* device-number boot-system)) @@ -218,14 +218,6 @@ networking values.) Return #t if INTERFACE is up, #f otherwise." (logand (network-interface-flags sock interface) IFF_UP))) -(define (load-linux-module* file) - "Load Linux module from FILE, the name of a `.ko' file." - (define (slurp module) - ;; TODO: Use 'mmap' to reduce memory usage. - (call-with-input-file file get-bytevector-all)) - - (load-linux-module (slurp file))) - (define (device-number major minor) "Return the device number for the device with MAJOR and MINOR, for use as the last argument of `mknod'." @@ -332,16 +324,17 @@ bailing out.~%root contents: ~s~%" (scandir "/")) (define* (boot-system #:key (linux-modules '()) + linux-module-directory qemu-guest-networking? volatile-root? pre-mount (mounts '())) "This procedure is meant to be called from an initrd. Boot a system by -first loading LINUX-MODULES (a list of absolute file names of '.ko' files), -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 -options '--load', '--root', and '--repl'. +first loading LINUX-MODULES (a list of module names) from +LINUX-MODULE-DIRECTORY, 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 options '--load', '--root', and '--repl'. Mount the root file system, specified by the '--root' command-line argument, if any. @@ -362,6 +355,10 @@ to it are lost." mounts) "ext4")) + (define (lookup-module name) + (string-append linux-module-directory "/" + (ensure-dot-ko name))) + (display "Welcome, this is GNU's early boot Guile.\n") (display "Use '--repl' for an initrd REPL.\n\n") @@ -376,7 +373,10 @@ to it are lost." (start-repl)) (display "loading kernel modules...\n") - (for-each load-linux-module* linux-modules) + (current-module-debugging-port (current-output-port)) + (for-each (cut load-linux-module* <> + #:lookup-module lookup-module) + (map lookup-module linux-modules)) (when qemu-guest-networking? (unless (configure-qemu-networking) @@ -388,6 +388,14 @@ to it are lost." ;; Prepare the real root file system under /root. (unless (file-exists? "/root") (mkdir "/root")) + + (when (procedure? pre-mount) + ;; Do whatever actions are needed before mounting the root file + ;; system--e.g., installing device mappings. Error out when the + ;; return value is false. + (unless (pre-mount) + (error "pre-mount actions failed"))) + (if root (mount-root-file-system (canonicalize-device-spec root) root-fs-type @@ -398,11 +406,6 @@ to it are lost." (mkdir "/root/dev") (make-essential-device-nodes #:root "/root")) - (when (procedure? pre-mount) - ;; Do whatever actions are needed before mounting--e.g., installing - ;; device mappings. - (pre-mount)) - ;; Mount the specified file systems. (for-each mount-file-system (remove root-mount-point? mounts)) |