From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; sv-SE; rv:1.7.8) Gecko/20050524 Fedora/1.0.4-4 Firefox/1.0.4 Description of problem: When a MS-DOS formated floppy is connected this entry is autogenerated in /etc/fstab /dev/sda /media/floppy auto pamconsole,exec,noauto,managed 0 0 However, it doesn't seam like the "auto" for filsystemtype is understood. I.e. a mount /media/floppy will not mount the filesystem even if vfat is listed in /etc/filesystems mount should try to use /etc/filesystems but as far as i can see from an strace that file is never accessed. Version-Release number of selected component (if applicable): util-linux-2.12p-9.3 How reproducible: Always Steps to Reproduce: 1. Use Gnome, (the bug is independent of Gnome, but this description is not) 2. Attach USB floppy or USB hard drive containing something mounaable as vfat 3. Watch fildailog saying it need to know the filesystem type Actual Results: Filesystem not mounted, but an fstab entry as described abowe is generated. The floppy can be mounted from the command line using mount -t vfat /dev/sda /media/floppy. However this is not exactly good usabilty Expected Results: Floppy drive mounted, as it did in FC3 Additional info: The USB floppy drive used is of unkown brand, as I can't read the logo but it could be something like ISA However, there is a model code on the bottom reading: YD-8U10
Please, try: - connect you USB floppy - send me result from: dmesg | grep sda - remove /dev/sda entry from fstab - try mount it without '-t' option mount /dev/sda /media/floppy it means the mount must itself detects filesystem type from device.
dmesg|grep sda gives: SCSI device sda: 2880 512-byte hdwr sectors (1 MB) sda: Write Protect is off sda: Mode Sense: 00 46 94 00 sda: assuming drive cache: write through SCSI device sda: 2880 512-byte hdwr sectors (1 MB) sda: Write Protect is off sda: Mode Sense: 00 46 94 00 sda: assuming drive cache: write through sda: unknown partition table Attached scsi removable disk sda at scsi0, channel 0, id 0, lun 0 When the fstab entry is removed, mount /dev/sda /media/floppy give: mount: you must specify the filesystem type
Please, send me results from cat /proc/partitions cat /etc/blkid.tab <-- after mount call BTW, mount with option '-v' provides more information. This looks like problem: sda: unknown partition table
cat /proc/partitions with usb drive connected gives: major minor #blocks name 3 0 58605120 hda 3 1 104391 hda1 3 2 58500697 hda2 253 0 57278464 dm-0 253 1 1179648 dm-1 33 0 7872 hde 33 1 7152 hde1 8 0 1440 sda Then I do: mount -v -t vfat /dev/sda /media/floppy /dev/sda on /media/floppy type vfat (rw) As you can see the disk is now mounted. Then cat /etc/blkid.tab gives: <device DEVNO="0x0301" TIME="1119974890" LABEL="/boot" UUID="ff14ab9a-b896-4eed-bc82-a93ea200847d" SEC_TYPE="ext2" TYPE="ext3">/dev/hda1</device> <device DEVNO="0xfd00" TIME="1119140840" UUID="0e810352-9712-4763-895a-7c99067ad857" SEC_TYPE="ext2" TYPE="ext3">/dev/dm-0</device> <device DEVNO="0xfd01" TIME="1119140840" UUID="168b29d3-5582-4b8e-b8df-e96582698d70" TYPE="swap">/dev/dm-1</device> <device DEVNO="0x1600" TIME="1119910784" TYPE="iso9660">/dev/hdc</device> If I remove the disk and reataches it and then do mount -v /media/floppy I get: mount: you didn't specify a filesystem type for /dev/sda I will try all types mentioned in /etc/filesystems or /proc/filesystems mount: you must specify the filesystem type But vfat, is listed in both /etc/filesystems and /proc/filesystems
Created attachment 116477 [details] FAT filesystem detection improvement The problem is in the libblkid from e2fsprogs that uses very limited FAT filesystem detection by magic strings only. It seems that valid FAT superblock could be without "FAT12", "FAT16" or "FAT32" string. An example HAL has better heuristic for FAT detection. This patch should be fix the problem. A test FAT image: http://people.redhat.com/kzak/blkid/bz161873/fat-nomagic.img.gz
Comment on attachment 116477 [details] FAT filesystem detection improvement Oops.. I sent old version of the patch. Sorry.
Created attachment 116478 [details] Th right patch version ;-)
Fixed in FC5 (devel tree). I don't expect fix in FC4 now -- it's minor problem and the fix should be tested first.