https://bugzilla.novell.com/show_bug.cgi?id=244485#c27
--- Comment #27 from Martin Pley 2007-10-25 09:14:23 MST ---
Another interesting fact:
It makes a big difference if I use a floppy formatted with mformat (1), mkdosfs
(2) or with Windows XP (3).
#############################
case 1:
behaviour: no question whether I want to mount the disk.
martin:~ # fdisk -l /dev/sdb
Disk /dev/sdb: 1 MB, 1474560 bytes
2 heads, 18 sectors/track, 80 cylinders
Units = cylinders of 36 * 512 = 18432 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/sdb1 * 1 80 1440 1 FAT12
content of varlogmessages:
Oct 25 16:49:23 martin kernel: sd 4:0:0:0: [sdb] 2880 512-byte hardware sectors
(1 MB)
Oct 25 16:49:23 martin kernel: sd 4:0:0:0: [sdb] Write Protect is off
Oct 25 16:49:23 martin kernel: sd 4:0:0:0: [sdb] Mode Sense: 00 46 94 00
Oct 25 16:49:23 martin kernel: sd 4:0:0:0: [sdb] Assuming drive cache: write
through
Oct 25 16:49:23 martin kernel: sd 4:0:0:0: [sdb] 2880 512-byte hardware sectors
(1 MB)
Oct 25 16:49:23 martin kernel: sd 4:0:0:0: [sdb] Write Protect is off
Oct 25 16:49:23 martin kernel: sd 4:0:0:0: [sdb] Mode Sense: 00 46 94 00
Oct 25 16:49:23 martin kernel: sd 4:0:0:0: [sdb] Assuming drive cache: write
through
Oct 25 16:49:24 martin kernel: sdb: sdb1
Oct 25 16:49:24 martin udevd[1282]: udev_event_run: seq 2094 forked, pid
[30129], 'add' 'block', 0 seconds old
Oct 25 16:49:24 martin udevd-event[30129]: match_rule: set ENV
'DEVTYPE=partition'
Oct 25 16:49:24 martin udevd-event[30129]: udev_rules_get_name: add symlink
'disk/by-id/usb-NEC_NEC_USB_UF000x-part1'
Oct 25 16:49:24 martin udevd-event[30129]: udev_rules_get_name: add symlink
'disk/by-path/pci-0000:00:1d.1-usb-0:1:1.0-scsi-0:0:0:0-part1'
Oct 25 16:49:24 martin udevd-event[30129]: run_program: 'vol_id --export
/dev/.tmp-8-17'
[.....]
###################################
case 2:
behaviour: everything works as expected. Desktop users can mount and unmount
disks disks without using the shell.
martin:~ # fdisk -l /dev/sdb
Disk /dev/sdb: 1 MB, 1474560 bytes
1 heads, 3 sectors/track, 960 cylinders
Units = cylinders of 3 * 512 = 1536 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
martin:~ #
content of varlogmessages:
Oct 25 16:52:42 martin kernel: sd 4:0:0:0: [sdb] 2880 512-byte hardware sectors
(1 MB)
Oct 25 16:52:42 martin kernel: sd 4:0:0:0: [sdb] Write Protect is off
Oct 25 16:52:42 martin kernel: sd 4:0:0:0: [sdb] Mode Sense: 00 46 94 00
Oct 25 16:52:42 martin kernel: sd 4:0:0:0: [sdb] Assuming drive cache: write
through
Oct 25 16:52:42 martin kernel: sd 4:0:0:0: [sdb] 2880 512-byte hardware sectors
(1 MB)
Oct 25 16:52:42 martin kernel: sd 4:0:0:0: [sdb] Write Protect is off
Oct 25 16:52:42 martin kernel: sd 4:0:0:0: [sdb] Mode Sense: 00 46 94 00
Oct 25 16:52:42 martin kernel: sd 4:0:0:0: [sdb] Assuming drive cache: write
through
Oct 25 16:52:42 martin kernel: sdb:
Oct 25 16:52:46 martin kernel: sd 4:0:0:0: [sdb] Result: hostbyte=DID_OK
driverbyte=DRIVER_SENSE,SUGGEST_OK
Oct 25 16:52:46 martin kernel: sd 4:0:0:0: [sdb] Sense Key : Medium Error
[current]
Oct 25 16:52:46 martin kernel: Info fld=0xa47
Oct 25 16:52:46 martin kernel: sd 4:0:0:0: [sdb] Add. Sense: Unrecovered read
error
Oct 25 16:52:46 martin kernel: end_request: I/O error, dev sdb, sector 2631
Oct 25 16:52:46 martin kernel: Buffer I/O error on device sdb, logical block
328
Oct 25 16:52:47 martin kernel: sd 4:0:0:0: [sdb] Result: hostbyte=DID_OK
driverbyte=DRIVER_SENSE,SUGGEST_OK
Oct 25 16:52:47 martin kernel: sd 4:0:0:0: [sdb] Sense Key : Medium Error
[current]
Oct 25 16:52:47 martin kernel: Info fld=0xa47
Oct 25 16:52:47 martin kernel: sd 4:0:0:0: [sdb] Add. Sense: Unrecovered read
error
Oct 25 16:52:47 martin kernel: end_request: I/O error, dev sdb, sector 2631
Oct 25 16:52:47 martin kernel: Buffer I/O error on device sdb, logical block
328
Oct 25 16:52:50 martin syslog-ng[2859]: STATS: dropped 0
Oct 25 16:52:51 martin kernel: sd 4:0:0:0: [sdb] Result: hostbyte=DID_OK
driverbyte=DRIVER_SENSE,SUGGEST_OK
Oct 25 16:52:51 martin kernel: sd 4:0:0:0: [sdb] Sense Key : Medium Error
[current]
Oct 25 16:52:51 martin kernel: Info fld=0xa46
Oct 25 16:52:51 martin kernel: sd 4:0:0:0: [sdb] Add. Sense: Unrecovered read
error
Oct 25 16:52:51 martin kernel: end_request: I/O error, dev sdb, sector 2630
Oct 25 16:52:51 martin kernel: Buffer I/O error on device sdb, logical block
328
Oct 25 16:52:52 martin kernel: sd 4:0:0:0: [sdb] Result: hostbyte=DID_OK
driverbyte=DRIVER_SENSE,SUGGEST_OK
Oct 25 16:52:52 martin kernel: sd 4:0:0:0: [sdb] Sense Key : Medium Error
[current]
Oct 25 16:52:52 martin kernel: Info fld=0xa47
Oct 25 16:52:52 martin kernel: sd 4:0:0:0: [sdb] Add. Sense: Unrecovered read
error
Oct 25 16:52:52 martin kernel: end_request: I/O error, dev sdb, sector 2631
Oct 25 16:52:52 martin kernel: Buffer I/O error on device sdb, logical block
328
Oct 25 16:53:00 martin hald: mounted /dev/sdb on behalf of uid 1000
###########################
case 3:
behaviour: no question whether I want to mount the disk.
martin:~ # fdisk -l /dev/sdb
martin:~ #
content of varlogmessages:
Oct 25 16:42:18 martin kernel: sd 4:0:0:0: [sdb] READ CAPACITY failed
Oct 25 16:42:18 martin kernel: sd 4:0:0:0: [sdb] Result: hostbyte=DID_OK
driverbyte=DRIVER_SENSE,SUGGEST_OK
Oct 25 16:42:18 martin kernel: sd 4:0:0:0: [sdb] Sense Key : Medium Error
[current]
Oct 25 16:42:18 martin kernel: sd 4:0:0:0: [sdb] Add. Sense: Cannot read medium
- unknown format
Oct 25 16:42:18 martin kernel: sd 4:0:0:0: [sdb] Write Protect is off
Oct 25 16:42:18 martin kernel: sd 4:0:0:0: [sdb] Mode Sense: 00 46 94 00
Oct 25 16:42:18 martin kernel: sd 4:0:0:0: [sdb] Assuming drive cache: write
through
Oct 25 16:42:19 martin kernel: sd 4:0:0:0: [sdb] READ CAPACITY failed
Oct 25 16:42:19 martin kernel: sd 4:0:0:0: [sdb] Result: hostbyte=DID_OK
driverbyte=DRIVER_SENSE,SUGGEST_OK
Oct 25 16:42:19 martin kernel: sd 4:0:0:0: [sdb] Sense Key : Medium Error
[current]
Oct 25 16:42:19 martin kernel: sd 4:0:0:0: [sdb] Add. Sense: Cannot read medium
- unknown format
Oct 25 16:42:19 martin kernel: sd 4:0:0:0: [sdb] Write Protect is off
Oct 25 16:42:19 martin kernel: sd 4:0:0:0: [sdb] Mode Sense: 00 46 94 00
Oct 25 16:42:19 martin kernel: sd 4:0:0:0: [sdb] Assuming drive cache: write
through
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