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gnu: bootloader: Extend `<menu-entry>' for chain-loader.

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* gnu/bootloader.scm (<menu-entry>)[chain-loader]: New field.
(menu-entry->sexp, sexp->menu-entry): Support chain-loader.
* doc/guix.texi (Bootloader Configuration): Document it.

Co-Authored-By: Julien Lepiller <julien@lepiller.eu>
Signed-off-by: Julien Lepiller <julien@lepiller.eu>
This commit is contained in:
tiantian
2022-09-05 01:25:38 +08:00
committed by Julien Lepiller
parent e8bded2de7
commit 52d780ea2b
2 changed files with 45 additions and 6 deletions
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33
gnu/bootloader.scm
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@@ -46,6 +46,7 @@
menu-entry-multiboot-kernel
menu-entry-multiboot-arguments
menu-entry-multiboot-modules
menu-entry-chain-loader
menu-entry->sexp
sexp->menu-entry
@@ -104,8 +105,10 @@
(multiboot-arguments menu-entry-multiboot-arguments
(default '())) ; list of string-valued gexps
(multiboot-modules menu-entry-multiboot-modules
(default '()))) ; list of multiboot commands, where
(default '())) ; list of multiboot commands, where
; a command is a list of <string>
(chain-loader menu-entry-chain-loader
(default #f))) ; string, path of efi file
(define (menu-entry->sexp entry)
"Return ENTRY serialized as an sexp."
@@ -117,8 +120,9 @@
`(label ,(file-system-label->string label)))
(_ device)))
(match entry
(($ <menu-entry> label device mount-point linux linux-arguments initrd #f
())
(($ <menu-entry> label device mount-point
(? identity linux) linux-arguments (? identity initrd)
#f () () #f)
`(menu-entry (version 0)
(label ,label)
(device ,(device->sexp device))
@@ -127,14 +131,22 @@
(linux-arguments ,linux-arguments)
(initrd ,initrd)))
(($ <menu-entry> label device mount-point #f () #f
multiboot-kernel multiboot-arguments multiboot-modules)
(? identity multiboot-kernel) multiboot-arguments
multiboot-modules #f)
`(menu-entry (version 0)
(label ,label)
(device ,(device->sexp device))
(device-mount-point ,mount-point)
(multiboot-kernel ,multiboot-kernel)
(multiboot-arguments ,multiboot-arguments)
(multiboot-modules ,multiboot-modules)))))
(multiboot-modules ,multiboot-modules)))
(($ <menu-entry> label device mount-point #f () #f #f () ()
(? identity chain-loader))
`(menu-entry (version 0)
(label ,label)
(device ,(device->sexp device))
(device-mount-point ,mount-point)
(chain-loader ,chain-loader)))))
(define (sexp->menu-entry sexp)
"Turn SEXP, an sexp as returned by 'menu-entry->sexp', into a <menu-entry>
@@ -171,7 +183,16 @@ record."
(device-mount-point mount-point)
(multiboot-kernel multiboot-kernel)
(multiboot-arguments multiboot-arguments)
(multiboot-modules multiboot-modules)))))
(multiboot-modules multiboot-modules)))
(('menu-entry ('version 0)
('label label) ('device device)
('device-mount-point mount-point)
('chain-loader chain-loader) _ ...)
(menu-entry
(label label)
(device (sexp->device device))
(device-mount-point mount-point)
(chain-loader chain-loader)))))
;;;