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vm: Set the boot flag on the root partition.

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Reported by nebuli on #guix.

* gnu/build/vm.scm (initialize-partition-table): Add #:bootable?
  parameter and honor it.
  (initialize-hard-disk): Likewise.
This commit is contained in:
Ludovic Courtès 2014-11-13 13:42:44 +01:00
parent ced0106a44
commit bff39668b9
1 changed files with 19 additions and 11 deletions
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30
gnu/build/vm.scm
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@ -112,17 +112,21 @@ the #:references-graphs parameter of 'derivation'."
(define* (initialize-partition-table device partition-size
#:key
bootable?
(label-type "msdos")
(offset (expt 2 20)))
"Create on DEVICE a partition table of type LABEL-TYPE, with a single
partition of PARTITION-SIZE bytes starting at OFFSET bytes. Return #t on
success."
partition of PARTITION-SIZE bytes starting at OFFSET bytes. When BOOTABLE? is
true, set the bootable flag on the partition. Return #t on success."
(format #t "creating partition table with a ~a B partition...\n"
partition-size)
(unless (zero? (system* "parted" device "mklabel" label-type
"mkpart" "primary" "ext2"
(format #f "~aB" offset)
(format #f "~aB" partition-size)))
(unless (zero? (apply system* "parted" device "mklabel" label-type
"mkpart" "primary" "ext2"
(format #f "~aB" offset)
(format #f "~aB" partition-size)
(if bootable?
'("set" "1" "boot" "on")
'())))
(error "failed to create partition table")))
(define MS_BIND 4096) ; <sys/mounts.h> again!
@ -183,13 +187,16 @@ volume name."
file-system-label
(closures '())
copy-closures?
(bootable? #t)
(register-closures? #t))
"Initialize DEVICE, a disk of DISK-IMAGE-SIZE bytes, with a FILE-SYSTEM-TYPE
partition with (optionally) FILE-SYSTEM-LABEL as its volume name, and with
GRUB installed. If REGISTER-CLOSURES? is true, register all of CLOSURES is
the partition's store. If COPY-CLOSURES? is true, copy all of CLOSURES to the
partition. SYSTEM-DIRECTORY is the name of the directory of the 'system'
derivation."
GRUB installed. When BOOTABLE? is true, set the bootable flag on that
partition.
If REGISTER-CLOSURES? is true, register all of CLOSURES is the partition's
store. If COPY-CLOSURES? is true, copy all of CLOSURES to the partition.
SYSTEM-DIRECTORY is the name of the directory of the 'system' derivation."
(define target-directory
"/fs")
@ -197,7 +204,8 @@ derivation."
(string-append device "1"))
(initialize-partition-table device
(- disk-image-size (* 5 (expt 2 20))))
(- disk-image-size (* 5 (expt 2 20)))
#:bootable? bootable?)
(format-partition partition file-system-type
#:label file-system-label)