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system: Don't emit a GRUB 'search' command when passed a GRUB file name.

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Reported by Tomáš Čech <tcech@suse.com>
at <http://debbugs.gnu.org/cgi/bugreport.cgi?bug=20067#26>.

* gnu/system/grub.scm (grub-root-search): Don't emit anything when FILE
is a string that does not denote an absolute file name.
This commit is contained in:
Ludovic Courtès 2016-09-26 00:12:50 +09:00
parent 7acd71d13d
commit 5babe521c8
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1 changed files with 17 additions and 12 deletions
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29
gnu/system/grub.scm
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@ -234,18 +234,23 @@ (define (grub-root-search root-fs file)
"Return the GRUB 'search' command to look for ROOT-FS, which contains FILE,
a gexp. The result is a gexp that can be inserted in the grub.cfg-generation
code."
(case (file-system-title root-fs)
;; Preferably refer to ROOT-FS by its UUID or label. This is more
;; efficient and less ambiguous, see <>.
((uuid)
(format #f "search --fs-uuid --set ~a"
(uuid->string (file-system-device root-fs))))
((label)
(format #f "search --label --set ~a"
(file-system-device root-fs)))
(else
;; As a last resort, look for any device containing FILE.
#~(format #f "search --file --set ~a" #$file))))
;; Usually FILE is a file name gexp like "/gnu/store/…-linux/vmlinuz", but
;; it can also be something like "(hd0,msdos1)/vmlinuz" in the case of
;; custom menu entries. In the latter case, don't emit a 'search' command.
(if (and (string? file) (not (string-prefix? "/" file)))
""
(case (file-system-title root-fs)
;; Preferably refer to ROOT-FS by its UUID or label. This is more
;; efficient and less ambiguous, see <>.
((uuid)
(format #f "search --fs-uuid --set ~a"
(uuid->string (file-system-device root-fs))))
((label)
(format #f "search --label --set ~a"
(file-system-device root-fs)))
(else
;; As a last resort, look for any device containing FILE.
#~(format #f "search --file --set ~a" #$file)))))
(define* (grub-configuration-file config store-fs entries
#:key