A line in 60-persistent-storage.rules states:
KERNEL=="sr*", ENV{ID_CDROM_MEDIA}=="?*", IMPORT{program}="/sbin/blkid -o udev -p -u noraid -O $env{ID_CDROM_MEDIA_SESSION_LAST_OFFSET} $tempnode"
It seems to assume that ID_CDROM_MEDIA_SESSION_LAST_OFFSET is always
set, since otherwise blkid fails:
maxim@maxim-laptop:~$ /sbin/blkid -o udev -p -u noraid -O /dev/sr0
The low-probe option requires a device
maxim@maxim-laptop:~$ /sbin/blkid -o udev -p -u noraid /dev/sr0
ID_FS_LABEL=CDROM
ID_FS_LABEL_ENC=CDROM\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20
ID_FS_VERSION=Joliet\x20Extension
ID_FS_TYPE=iso9660
ID_FS_USAGE=filesystem
maxim@maxim-laptop:~$ /sbin/blkid -o udev -p -u noraid -O 0 /dev/sr0
ID_FS_LABEL=CDROM
ID_FS_LABEL_ENC=CDROM\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20
ID_FS_VERSION=Joliet\x20Extension
ID_FS_TYPE=iso9660
ID_FS_USAGE=filesystem
maxim@maxim-laptop:~$
Maybe this is a change in blkid
(btw, you notice obvious bug, the label is 'padded' with spaces, I will
report that to util-linux package maintainers)
Now, ether the rule has to be split in two, or cdrom_id changed.
Currently in cdrom_id:
if (cd_media_session_last_offset > 0)
printf("ID_CDROM_MEDIA_SESSION_LAST_OFFSET=%llu\n", cd_media_session_last_offset);
Now, it is impossible to use any disks, since without blkid environment,
devicekit doesn't recognize the cdrom at all.
Best regards,
Maxim Levitsky
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