libblkid: reduce probing area for crazy CDROMs
[ Without this patch, if you burn a CD-R (in TAO mode) of the Alpine 3.4 .iso, it won’t boot! ]
Linux kernel reports devices greater than area readable by read(2).
The readable area is usually 2-3 CD blocks smaller (CD block is
2048-bytes) than size returned by BLKGETSIZE. This patch checks for this
issues to avoid I/O errors in probing functions.
https://github.com/karelzak/util-linux/commit/bfebe74e3babe8c188a51269acc2673f1aea283f
(from redmine: issue id 5697, created on 2016-06-09, closed on 2016-06-24)
- Changesets:
- Revision 39171d2d by Natanael Copa on 2016-06-15T11:02:41Z:
main/util-linux: backport libblkid cdrom probe patch
ref #5697- Revision b327a132 by Natanael Copa on 2016-06-17T16:39:26Z:
main/util-linux: backport libblkid cdrom probe patch
fixes #5697
(cherry picked from commit 39171d2dd47e48195dcd013893e4ff7323c5e0fe)
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