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-rw-r--r--gnu/build/vm.scm12
1 files changed, 11 insertions, 1 deletions
diff --git a/gnu/build/vm.scm b/gnu/build/vm.scm
index 63140f1cee..84bb2592e2 100644
--- a/gnu/build/vm.scm
+++ b/gnu/build/vm.scm
@@ -33,6 +33,7 @@
#:use-module (guix records)
#:use-module ((guix combinators) #:select (fold2))
#:use-module (ice-9 format)
+ #:use-module (ice-9 ftw)
#:use-module (ice-9 match)
#:use-module (ice-9 regex)
#:use-module (ice-9 popen)
@@ -419,7 +420,16 @@ system that is passed to 'populate-root-file-system'."
;; 'register-closure' resets timestamps and everything, so no need to do it
;; once more in that case.
(unless register-closures?
- (reset-timestamps target))))
+ ;; 'reset-timestamps' also resets file permissions; do that everywhere
+ ;; except on /dev so that /dev/null remains writable, etc.
+ (for-each (lambda (directory)
+ (reset-timestamps (string-append target "/" directory)))
+ (scandir target
+ (match-lambda
+ ((or "." ".." "dev") #f)
+ (_ #t))))
+ (reset-timestamps (string-append target "/dev")
+ #:preserve-permissions? #t))))
(define (register-bootcfg-root target bootcfg)
"On file system TARGET, register BOOTCFG as a GC root."