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-rw-r--r--guix/build/linux-initrd.scm25
1 files changed, 19 insertions, 6 deletions
diff --git a/guix/build/linux-initrd.scm b/guix/build/linux-initrd.scm
index 9a13e7213c..376242ce2b 100644
--- a/guix/build/linux-initrd.scm
+++ b/guix/build/linux-initrd.scm
@@ -211,6 +211,16 @@ corresponding device name."
spec
(or (find-partition-by-label spec) spec)))
+(define* (make-disk-device-nodes base major #:optional (minor 0))
+ "Make the block device nodes around BASE (something like \"/root/dev/sda\")
+with the given MAJOR number, starting with MINOR."
+ (mknod base 'block-special #o644 (device-number major minor))
+ (let loop ((i 1))
+ (when (< i 6)
+ (mknod (string-append base (number->string i))
+ 'block-special #o644 (device-number major (+ minor i)))
+ (loop (+ i 1)))))
+
(define* (make-essential-device-nodes #:key (root "/"))
"Make essential device nodes under ROOT/dev."
;; The hand-made udev!
@@ -226,14 +236,17 @@ corresponding device name."
(mkdir (scope "dev")))
;; Make the device nodes for SCSI disks.
- (mknod (scope "dev/sda") 'block-special #o644 (device-number 8 0))
- (mknod (scope "dev/sda1") 'block-special #o644 (device-number 8 1))
- (mknod (scope "dev/sda2") 'block-special #o644 (device-number 8 2))
+ (make-disk-device-nodes (scope "dev/sda") 8)
+ (make-disk-device-nodes (scope "dev/sdb") 8 16)
+ (make-disk-device-nodes (scope "dev/sdc") 8 32)
+ (make-disk-device-nodes (scope "dev/sdd") 8 48)
+
+ ;; SCSI CD-ROM devices (aka. "/dev/sr0" etc.).
+ (mknod (scope "dev/scd0") 'block-special #o644 (device-number 11 0))
+ (mknod (scope "dev/scd1") 'block-special #o644 (device-number 11 1))
;; The virtio (para-virtualized) block devices, as supported by QEMU/KVM.
- (mknod (scope "dev/vda") 'block-special #o644 (device-number 252 0))
- (mknod (scope "dev/vda1") 'block-special #o644 (device-number 252 1))
- (mknod (scope "dev/vda2") 'block-special #o644 (device-number 252 2))
+ (make-disk-device-nodes (scope "dev/vda") 252)
;; Memory (used by Xorg's VESA driver.)
(mknod (scope "dev/mem") 'char-special #o640 (device-number 1 1))