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| author | Danny Milosavljevic <dannym@scratchpost.org> | 2017-05-30 11:12:58 +0200 |
|---|---|---|
| committer | Danny Milosavljevic <dannym@scratchpost.org> | 2017-05-31 21:13:15 +0200 |
| commit | 203a9455c4695152fc5d0085bffeead9ce3216c2 (patch) | |
| tree | 7f3637c0ed6395298875a9879cbd09a76e5a6ffd | |
| parent | 1c25d6d06ee496fc5df62d61f51c520018c63d23 (diff) | |
| download | guix-203a9455c4695152fc5d0085bffeead9ce3216c2.tar.gz | |
file-systems: Improve error reporting.
Suggested by Chris Marusich <cmmarusich@gmail.com>. Fixes <https://bugs.gnu.org/27143>. * gnu/build/file-systems.scm (read-iso9660-primary-volume-descriptor): Improve error reporting.
| -rw-r--r-- | gnu/build/file-systems.scm | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/gnu/build/file-systems.scm b/gnu/build/file-systems.scm index 3b831c0ec0..3e0873377a 100644 --- a/gnu/build/file-systems.scm +++ b/gnu/build/file-systems.scm @@ -245,7 +245,12 @@ Trailing spaces are trimmed." "Find and read the first primary volume descriptor, starting at OFFSET. Return #f if not found." (let* ((sblock (read-superblock device offset 2048 iso9660-superblock?)) - (type-code (if sblock (array-ref sblock 0) 255))) + (type-code (if sblock + (bytevector-u8-ref sblock 0) + (error (format #f + "Could not read ISO9660 primary +volume descriptor from ~s" + device))))) (match type-code (255 #f) ; Volume Descriptor Set Terminator. (1 sblock) ; Primary Volume Descriptor |