install: Really overwrite TARGET/var/guix/profiles/system-1-link.

* gnu/build/install.scm (populate-root-file-system): Delete system-1-link
  under TARGET, not under /.  Use 'catch' and check for EEXIST instead of
  (false-if-exception (delete-file ...)).
This commit is contained in:
Ludovic Courtès 2015-06-10 10:25:56 +02:00
parent 7522a0160b
commit aea9b23213

@ -133,9 +133,19 @@ includes /etc, /var, /run, /bin/sh, etc., and all the symlinks to SYSTEM."
(directives (%store-directory)))
;; Add system generation 1.
(false-if-exception (delete-file "/var/guix/profiles/system-1-link"))
(symlink system
(string-append target "/var/guix/profiles/system-1-link")))
(let ((generation-1 (string-append target
"/var/guix/profiles/system-1-link")))
(let try ()
(catch 'system-error
(lambda ()
(symlink system generation-1))
(lambda args
;; If GENERATION-1 already exists, overwrite it.
(if (= EEXIST (system-error-errno args))
(begin
(delete-file generation-1)
(try))
(apply throw args)))))))
(define (reset-timestamps directory)
"Reset the timestamps of all the files under DIRECTORY, so that they appear