diff options
Diffstat (limited to 'gnu/build/file-systems.scm')
| -rw-r--r-- | gnu/build/file-systems.scm | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/gnu/build/file-systems.scm b/gnu/build/file-systems.scm index 47aa77dd3e..17c1182ce6 100644 --- a/gnu/build/file-systems.scm +++ b/gnu/build/file-systems.scm @@ -236,7 +236,7 @@ Trailing spaces are trimmed." ;; <http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-119.pdf>. (define (iso9660-superblock? sblock) - "Return #t when SBLOCK is a iso9660 superblock." + "Return #t when SBLOCK is an iso9660 volume descriptor." (bytevector=? (sub-bytevector sblock 1 6) ;; Note: "\x01" is the volume descriptor format version (string->utf8 "CD001\x01"))) @@ -252,13 +252,14 @@ Trailing spaces are trimmed." (_ (read-iso9660-primary-volume-descriptor device (+ offset 2048)))))) (define (read-iso9660-superblock device) - "Return the raw contents of DEVICE's iso9660 superblock as a bytevector, or -#f if DEVICE does not contain a iso9660 file system." + "Return the raw contents of DEVICE's iso9660 primary volume descriptor +as a bytevector, or #f if DEVICE does not contain an iso9660 file system." ;; Start reading at sector 16. (read-iso9660-primary-volume-descriptor device (* 2048 16))) (define (iso9660-superblock-uuid sblock) - "Return the modification time of a iso9660 superblock SBLOCK as a bytevector." + "Return the modification time of an iso9660 primary volume descriptor +SBLOCK as a bytevector." ;; Drops GMT offset for compatibility with Grub, blkid and /dev/disk/by-uuid. ;; Compare Grub: "2014-12-02-19-30-23-00". ;; Compare blkid result: "2014-12-02-19-30-23-00". |