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linux-boot: Don't fail if /root/etc/mtab is a dangling symlink.

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Reported Joshua Grant.
Patch suggested by Mark H Weaver.

* gnu/build/linux-boot.scm (mount-root-file-system): Use
  'false-if-exception' instead of 'when (file-exists? ...)' to account
  for dangling symlinks.
This commit is contained in:
Ludovic Courtès 2015-01-28 21:07:42 +01:00
parent 9250b30466
commit 01ed3c4fe5
1 changed files with 2 additions and 2 deletions
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4
gnu/build/linux-boot.scm
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@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013, 2014 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
@ -276,7 +276,7 @@ (define (mark-as-not-killable pid)
(mount root "/root" type)))
;; Make sure /root/etc/mtab is a symlink to /proc/self/mounts.
(when (file-exists? "/root/etc/mtab")
(false-if-exception
(delete-file "/root/etc/mtab"))
(symlink "/proc/self/mounts" "/root/etc/mtab"))