One of the partion on a usb harddisk cannot automount
- by holmescn
It is a very strange problem. My usb harddisk has four partitions, one is primary, the other three are logical (contained within an extended partition). When I plug in the disk, three of the partitions are mounted automatically except one--the first logical partition in the extended partition.
Initially I thought it is the problem of system (at that time I used Mint). But after I change to Ubuntu 12.04, the problem wasn't solved. I don't want to add a rule in fstab, and I want to know what happened. The disk is fine, and the partition can be accessed in Windows and mounted manually.
result of dmesg | tail:
[100933.557649] usb 2-1.2: new high-speed USB device number 4 using ehci_hcd
[100933.651891] scsi8 : usb-storage 2-1.2:1.0
[100934.649047] scsi 8:0:0:0: Direct-Access SAMSUNG PQ: 0 ANSI: 0
[100934.650963] sd 8:0:0:0: Attached scsi generic sg2 type 0
[100934.651342] sd 8:0:0:0: [sdb] 625142448 512-byte logical blocks: (320 GB/298 GiB)
[100934.651977] sd 8:0:0:0: [sdb] Write Protect is off
[100934.651989] sd 8:0:0:0: [sdb] Mode Sense: 03 00 00 00
[100934.652836] sd 8:0:0:0: [sdb] No Caching mode page present
[100934.652848] sd 8:0:0:0: [sdb] Assuming drive cache: write through
[100934.655354] sd 8:0:0:0: [sdb] No Caching mode page present
[100934.655367] sd 8:0:0:0: [sdb] Assuming drive cache: write through
[100934.734652] sdb: sdb1 sdb3 < sdb5 sdb6 sdb7 >
[100934.737706] sd 8:0:0:0: [sdb] No Caching mode page present
[100934.737725] sd 8:0:0:0: [sdb] Assuming drive cache: write through
[100934.737731] sd 8:0:0:0: [sdb] Attached SCSI disk
result of parted -l:
Model: SAMSUNG (scsi)
Disk /dev/sdb: 320GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 32.3kB 21.5GB 21.5GB primary ntfs
3 21.5GB 320GB 299GB extended lba
5 21.5GB 129GB 107GB logical ntfs
6 129GB 236GB 107GB logical ntfs
7 236GB 320GB 83.8GB logical ntfs