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gnu: bootloader: grub: Add support for chain-loader.

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* gnu/bootloader/grub.scm (grub-configuration-file): Add support for
chain-loader.

Signed-off-by: Julien Lepiller <julien@lepiller.eu>
This commit is contained in:
tiantian 2022-09-05 01:25:40 +08:00 committed by Julien Lepiller
parent 52d780ea2b
commit 1fc20e4c86
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GPG key ID: 53D457B2D636EE82
1 changed files with 42 additions and 29 deletions
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71
gnu/bootloader/grub.scm
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@ -374,44 +374,57 @@ (define (menu-entry->gexp entry)
(let ((label (menu-entry-label entry))
(linux (menu-entry-linux entry))
(device (menu-entry-device entry))
(device-mount-point (menu-entry-device-mount-point entry)))
(if linux
(let ((arguments (menu-entry-linux-arguments entry))
(linux (normalize-file linux
device-mount-point
store-directory-prefix))
(initrd (normalize-file (menu-entry-initrd entry)
device-mount-point
store-directory-prefix)))
;; Here DEVICE is the store and DEVICE-MOUNT-POINT is its mount point.
;; Use the right file names for LINUX and INITRD in case
;; DEVICE-MOUNT-POINT is not "/", meaning that the store is on a
;; separate partition.
(device-mount-point (menu-entry-device-mount-point entry))
(multiboot-kernel (menu-entry-multiboot-kernel entry))
(chain-loader (menu-entry-chain-loader entry)))
(cond
(linux
(let ((arguments (menu-entry-linux-arguments entry))
(linux (normalize-file linux
device-mount-point
store-directory-prefix))
(initrd (normalize-file (menu-entry-initrd entry)
device-mount-point
store-directory-prefix)))
;; Here DEVICE is the store and DEVICE-MOUNT-POINT is its mount point.
;; Use the right file names for LINUX and INITRD in case
;; DEVICE-MOUNT-POINT is not "/", meaning that the store is on a
;; separate partition.
;; When BTRFS-SUBVOLUME-FILE-NAME is defined, prepend it the linux and
;; initrd paths, to allow booting from a Btrfs subvolume.
#~(format port "menuentry ~s {
;; When BTRFS-SUBVOLUME-FILE-NAME is defined, prepend it the linux and
;; initrd paths, to allow booting from a Btrfs subvolume.
#~(format port "menuentry ~s {
~a
linux ~a ~a
initrd ~a
}~%"
#$label
#$(grub-root-search device linux)
#$linux (string-join (list #$@arguments))
#$initrd))
(let ((kernel (menu-entry-multiboot-kernel entry))
(arguments (menu-entry-multiboot-arguments entry))
(modules (menu-entry-multiboot-modules entry))
(root-index 1)) ; XXX EFI will need root-index 2
#~(format port "
#$label
#$(grub-root-search device linux)
#$linux (string-join (list #$@arguments))
#$initrd)))
(multiboot-kernel
(let ((kernel (menu-entry-multiboot-kernel entry))
(arguments (menu-entry-multiboot-arguments entry))
(modules (menu-entry-multiboot-modules entry))
(root-index 1)) ; XXX EFI will need root-index 2
#~(format port "
menuentry ~s {
multiboot ~a root=device:hd0s~a~a~a
}~%"
#$label
#$kernel
#$root-index (string-join (list #$@arguments) " " 'prefix)
(string-join (map string-join '#$modules)
"\n module " 'prefix))))
(chain-loader
#~(format port "
menuentry ~s {
~a
chainloader ~a
}~%"
#$label
#$kernel
#$root-index (string-join (list #$@arguments) " " 'prefix)
(string-join (map string-join '#$modules)
"\n module " 'prefix))))))
#$(grub-root-search device chain-loader)
#$chain-loader)))))
(define (crypto-devices)
(define (crypto-device->cryptomount dev)