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install: 'cow-store' now bind-mounts the target's /tmp. 

Reported by Matthew Jordan <matthewjordandevops@yandex.com>
at <https://lists.gnu.org/archive/html/guix-devel/2016-05/msg00967.html>.

* gnu/system/install.scm (make-cow-store): Bind-mount TARGET's /tmp
on /tmp.
This commit is contained in:
Ludovic Courtès 2016-05-31 22:51:07 +02:00
parent 405d043ddd
commit 0adabad72d
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gnu/system/install.scm
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@ -145,6 +145,11 @@ current store is on a RAM disk."
(chmod #$directory #o1775)))
#~(begin
;; Bind-mount TARGET's /tmp in case we need space to build things.
(let ((tmpdir (string-append #$target "/tmp")))
(mkdir-p tmpdir)
(mount tmpdir "/tmp" "none" MS_BIND))
(unless (file-exists? "/.ro-store")
(mkdir "/.ro-store")
(mount #$(%store-prefix) "/.ro-store" "none"