Hi, This disk was used as /dev/sdd previously, and now it's named /dev/sdc, isn't it? If so, you can use this usb disk after reboot, or adjusting that the disk is recognized as /dev/sdd. Btrfs does not support device file renaming yet.
Regards, taruisi (2010/02/13 21:45), Victor Hooi wrote: > heya, > > This is on kernel 2.6.32.8-1, on Arch Linux 64-bit. I have an external > harddisk, with a btrfs filessystem on it. Just now, after a reboot, I > seem to be unable to mount it. > > KDE gives a message about being unable to find the superblock, trying > to mount it from the command-line gives something similar: > >> mount: /dev/sdc1: can't read superblock > > I do know the last time I used the disk, it may not have been > unmounted cleanly. Could that have caused this current issue? Any > possible remedy? I'm really hoping it is, because that's a 1.5 Tb > external disk...lol. > > Also, dmesg contains: >> >> usb 2-2: new high speed USB device using ehci_hcd and address 8 >> usb 2-2: configuration #1 chosen from 1 choice >> scsi10 : SCSI emulation for USB Mass Storage devices >> usb-storage: device found at 8 >> usb-storage: waiting for device to settle before scanning >> scsi 10:0:0:0: Direct-Access WDC WD15 EADS-00P8B0 PQ: 0 ANSI: 2 >> sd 10:0:0:0: Attached scsi generic sg2 type 0 >> usb-storage: device scan complete >> sd 10:0:0:0: [sdc] 2930277168 512-byte logical blocks: (1.50 TB/1.36 TiB) >> sd 10:0:0:0: [sdc] Write Protect is off >> sd 10:0:0:0: [sdc] Mode Sense: 38 00 00 00 >> sd 10:0:0:0: [sdc] Assuming drive cache: write through >> sd 10:0:0:0: [sdc] Assuming drive cache: write through >> sdc: sdc1 >> sd 10:0:0:0: [sdc] Assuming drive cache: write through >> sd 10:0:0:0: [sdc] Attached SCSI disk >> device label tessier-ashpool devid 1 transid 4882 /dev/sdc1 >> open /dev/sdd1 failed > > Cheers, > Victor > -- > To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
