[karmic] unable to mount fat32 filesystem via usb

[nhasian]

In Ubuntu Karmic Koala Alpha 2 64-bit When pluggin in either a USB 16gig Corsair Flash thumbdrive, or a 1TB Western Digital 3.5" External Hard Disk, the Fat32 partitions are not mounted. The NTFS volume mounts fine when the drive is plugged in.

I receive this error when trying to mount a fat32 volume via usb:

"org.freedesktop.DeviceKit.Disks.Error.Failed: Error mounting: mount exited with exit code 1: helper failed with:
mount: wrong fs type, bad option, bad superblock on /dev/sdc1,
       missing codepage or helper program, or other error
       In some cases useful info is found in syslog - try
       dmesg | tail or so"

Jun 12 00:24:42 iphone69 kernel: [ 7891.968045] usb 2-1: new high speed USB device using ehci_hcd and address 5
Jun 12 00:24:42 iphone69 kernel: [ 7892.102008] usb 2-1: configuration #1 chosen from 1 choice
Jun 12 00:24:42 iphone69 kernel: [ 7892.102632] scsi6 : SCSI emulation for USB Mass Storage devices
Jun 12 00:24:48 iphone69 kernel: [ 7897.101856] scsi 6:0:0:0: Direct-Access Corsair Flash Voyager 0.00 PQ: 0 ANSI: 2
Jun 12 00:24:48 iphone69 kernel: [ 7897.102162] sd 6:0:0:0: Attached scsi generic sg3 type 0
Jun 12 00:24:48 iphone69 kernel: [ 7897.146139] sd 6:0:0:0: [sdc] 31588352 512-byte hardware sectors: (16.1 GB/15.0 GiB)
Jun 12 00:24:48 iphone69 kernel: [ 7897.147080] sd 6:0:0:0: [sdc] Write Protect is off
Jun 12 00:24:48 iphone69 kernel: [ 7897.150329] sdc: sdc1
Jun 12 00:24:48 iphone69 kernel: [ 7897.284766] sd 6:0:0:0: [sdc] Attached SCSI removable disk
Jun 12 00:24:57 iphone69 kernel: [ 7906.965731] UDF-fs: No anchor found
Jun 12 00:24:57 iphone69 kernel: [ 7906.965740] UDF-fs: Rescanning with blocksize 2048
Jun 12 00:24:57 iphone69 kernel: [ 7906.980107] UDF-fs: No anchor found
Jun 12 00:24:57 iphone69 kernel: [ 7906.980115] UDF-fs: No partition found (1)
Jun 12 00:24:57 iphone69 kernel: [ 7907.019730] ISOFS: Unable to identify CD-ROM format.

[nhasian (nhasian)]

this is probably related, it seems that when i plug in the usb thumbdrive or hard drive, it mounts it as /media/cdrom0.

[Artem Popov (artfwo)]

Same thing here on a 32-bit fully updated Karmic system.

[Artem Popov (artfwo)]

It seems to be fixable by deleting entries for removable media in /etc/fstab and also looks related to bug 150872

[nhasian (nhasian)]

Thanks Артём Попов,

removing the cdrom lines from /etc/fstab resolved the problem for me.

[astenorh (mparusinski)]

Got a similar problems with an external device WD 320 Gb formated in NTFS. Manage to figure out information on GParted, which apparently associated the device with a Fat32 partition. I manage to mount it as a Fat32 partition and read the content (did not try to write just for safety precautions). I couldn't do mount as a NTFS partition.

[Ivan Wills (ivan-wills)]

I have the same problem with fat32 and a PCMCIA Compact Flash card reader. I am using 64bit Karmic Koala Alpha 2.

[dysmann (dysmann)]

I couldn't mount removable medias recognized as sdb1 utils removing related line in /etc/fstab. This line wanted to mount them as CDROM iso format on /media/cdrom0
I think I know why : I installed Ubuntu Karmic from a USB disk created with usb-creator from Ubuntu Jaunty (it was Karmic Alpha 2 iso)

[David (davidgalvan08)]

May be a related problem. My 500GB Free Agent USB Drive (FAT32) loads very slowly. I also noticed that every USB Drive that I checked (all FAT32) had changed the capitalization in its label. My 500GB Drive was named from FreeAgent to FREEAGENT, USB drive bluDisk to BLUDISK, and so on. This problem occurs on Karmic Alpha 4

[OttoTechnica (ebsmith)]

I experienced this same issue in the Release version. The solution regarding removing the CDROM entry in /etc/fstab resolved the issue.
I found the error in both an upgrade and clean (wiped drive) installation.
This was Karmic 64bit

[ioio (antonio-nardella)]

Same problem on an newly installed laptop. x86 Karmic Koala.

I plug in the external hdd, eject it, turn it off. When I turn it on again, it doesn't mount.

[Jens Janssen (jayjay)]

fresh installed Karmic:

Made a USB-Stick with "USB Startup Disk Creator" and used it for installation on another PC. After that, plugged in, but FAT32 partition didn't get recognized (USB stick 100% healthy, tested with H2testw):

[ 6106.078843] scsi 6:0:0:0: Direct-Access ST 8GB 0000 PQ: 0 ANSI: 0 CCS
[ 6106.079293] sd 6:0:0:0: Attached scsi generic sg2 type 0
[ 6106.086837] sd 6:0:0:0: [sdb] 15663104 512-byte logical blocks: (8.01 GB/7.46 GiB)
[ 6106.087817] sd 6:0:0:0: [sdb] Write Protect is off
[ 6106.087820] sd 6:0:0:0: [sdb] Mode Sense: 43 00 00 00
[ 6106.087823] sd 6:0:0:0: [sdb] Assuming drive cache: write through
[ 6106.091315] sd 6:0:0:0: [sdb] Assuming drive cache: write through
[ 6106.091325] sdb: sdb1
[ 6106.099445] sd 6:0:0:0: [sdb] Assuming drive cache: write through
[ 6106.099453] sd 6:0:0:0: [sdb] Attached SCSI removable disk
[ 6109.720253] sd 6:0:0:0: [sdb] Assuming drive cache: write through
[ 6109.720259] sdb: unknown partition table
[ 6109.981650] sd 6:0:0:0: [sdb] Assuming drive cache: write through
[ 6109.981658] sdb:
[ 6120.339900] sd 6:0:0:0: [sdb] Assuming drive cache: write through
[ 6120.339907] sdb: unknown partition table
[ 6120.544984] sd 6:0:0:0: [sdb] Assuming drive cache: write through
[ 6120.544992] sdb:
[ 6158.603145] sd 6:0:0:0: [sdb] Assuming drive cache: write through
[ 6158.603158] sdb: unknown partition table
[ 6158.918527] sd 6:0:0:0: [sdb] Assuming drive cache: write through
[ 6158.918534] sdb:
[ 6166.285652] usb 1-1: USB disconnect, address 4
[ 6166.289601] sd 6:0:0:0: [sdb] Unhandled error code
[ 6166.289609] sd 6:0:0:0: [sdb] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
[ 6166.289621] end_request: I/O error, dev sdb, sector 29794
[ 6166.293849] sd 6:0:0:0: [sdb] Unhandled error code
[ 6166.293857] sd 6:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK
[ 6166.293866] end_request: I/O error, dev sdb, sector 782
[ 6166.293879] Buffer I/O error on device sdb1, logical block 360
[ 6166.293886] lost page write due to I/O error on sdb1
[ 6166.295138] sd 6:0:0:0: [sdb] Unhandled error code
[ 6166.295143] sd 6:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK
[ 6166.295152] end_request: I/O error, dev sdb, sector 542
[ 6166.295159] Buffer I/O error on device sdb1, logical block 240
[ 6166.295165] lost page write due to I/O error on sdb1
[ 6166.295173] Buffer I/O error on device sdb1, logical block 241
[ 6166.295192] lost page write due to I/O error on sdb1
[ 6166.295199] Buffer I/O error on device sdb1, logical block 242
[ 6166.295205] lost page write due to I/O error on sdb1
[ 6166.295212] Buffer I/O error on device sdb1, logical block 243
[ 6166.295218] lost page write due to I/O error on sdb1
[ 6166.295226] Buffer I/O error on device sdb1, logical block 244
[ 6166.295232] lost page write due to I/O error on sdb1
[ 6166.295239] Buffer I/O error on device sdb1, logical block 245
[ 6166.295245] lost page write due to I/O error on sdb1
[ 6166.295252] Buffer I/O error on device sdb1, logical block 246
[ 6166.295258] lost page write due to I/O error on sdb1
[ 6166.295265] Buffer I/O error on device sdb1, logical block 247
[ 6166.295271] lost pa...

[Brad Figg (brad-figg)]

This bug was filed against a series that is no longer supported and so is being marked as Won't Fix. If this issue still exists in a supported series, please file a new bug.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.