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I installed an .iso file of a linux distro on a usb flash drive that had been working fine. I didn't end up using the drive to run the OS, so now I want to re-format it for use as a regular flash drive. But when I plug it in it's not recognized. I've tried lsblk, fdisk -l, and lsusb. None of these commands recognize this drive. They all work fine with my other flash drives. Anything else I can try to recognize and re-format this drive, or is it a lost cause?
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dmesgOffline
Wow that produced a lot of info. What am I looking for? Not sure if it's safe to post all of that, but the following output seems to be about the flash drive:
[ 1588.940956] usb 2-1: new SuperSpeed USB device number 2 using xhci_hcd
[ 1589.030678] usb-storage 2-1:1.0: USB Mass Storage device detected
[ 1589.030974] scsi host4: usb-storage 2-1:1.0
[ 1589.031271] usbcore: registered new interface driver usb-storage
[ 1589.032531] usbcore: registered new interface driver uas
[ 1590.031438] scsi 4:0:0:0: Direct-Access SanDisk SanDisk Ultra PMAP PQ: 0 ANSI: 6
[ 1590.033729] sd 4:0:0:0: [sdb] 61767680 512-byte logical blocks: (31.6 GB/29.4 GiB)
[ 1590.034607] sd 4:0:0:0: [sdb] Write Protect is off
[ 1590.034617] sd 4:0:0:0: [sdb] Mode Sense: 2b 00 00 08
[ 1590.035482] sd 4:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[ 1590.158947] sdb: sdb1
[ 1590.161573] sd 4:0:0:0: [sdb] Attached SCSI removable disk
[ 1601.347080] FAT-fs (sdb1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
[ 1935.157800] JFS: nTxBlock = 8192, nTxLock = 65536
[ 1935.221201] SGI XFS with ACLs, security attributes, realtime, no debug enabled
[ 2013.302698] sdb: sdb1
[ 2013.659399] sdb: sdb1
[ 2564.078608] sdb: sdb1
[ 2564.684424] sdb: sdb1
[ 2598.056457] EXT4-fs (sdb1): mounting ext3 file system using the ext4 subsystem
[ 2598.066902] EXT4-fs (sdb1): mounted filesystem with ordered data mode. Opts: (null)
[ 2623.197655] sdb: detected capacity change from 31625052160 to 0
[ 2674.079944] usb 2-1: USB disconnect, device number 2
[ 2678.189038] usb 2-1: new SuperSpeed USB device number 4 using xhci_hcd
[ 2678.204761] usb-storage 2-1:1.0: USB Mass Storage device detected
[ 2678.204889] scsi host5: usb-storage 2-1:1.0
[ 2679.202088] scsi 5:0:0:0: Direct-Access SanDisk SanDisk Ultra PMAP PQ: 0 ANSI: 6
[ 2679.202756] sd 5:0:0:0: [sdb] 61767680 512-byte logical blocks: (31.6 GB/29.4 GiB)
[ 2679.203558] sd 5:0:0:0: [sdb] Write Protect is off
[ 2679.203564] sd 5:0:0:0: [sdb] Mode Sense: 2b 00 00 08
[ 2679.204361] sd 5:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[ 2679.427611] sdb: sdb1
[ 2679.430400] sd 5:0:0:0: [sdb] Attached SCSI removable disk
[ 2682.955849] EXT4-fs (sdb1): mounting ext3 file system using the ext4 subsystem
[ 2682.965996] EXT4-fs (sdb1): mounted filesystem with ordered data mode. Opts: (null)
[ 3392.125362] sdb: detected capacity change from 31625052160 to 0
[ 3394.030764] usb 2-1: USB disconnect, device number 4
[ 3397.141513] usb 2-1: new SuperSpeed USB device number 5 using xhci_hcd
[ 3397.156855] usb-storage 2-1:1.0: USB Mass Storage device detected
[ 3397.156967] scsi host6: usb-storage 2-1:1.0
[ 3398.150184] scsi 6:0:0:0: Direct-Access SanDisk SanDisk Ultra PMAP PQ: 0 ANSI: 6
[ 3398.150929] sd 6:0:0:0: [sdb] 61767680 512-byte logical blocks: (31.6 GB/29.4 GiB)
[ 3398.151731] sd 6:0:0:0: [sdb] Write Protect is off
[ 3398.151735] sd 6:0:0:0: [sdb] Mode Sense: 2b 00 00 08
[ 3398.152535] sd 6:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[ 3398.331573] sdb: sdb1
[ 3398.334098] sd 6:0:0:0: [sdb] Attached SCSI removable disk
[ 3405.290351] EXT4-fs (sdb1): mounting ext3 file system using the ext4 subsystem
[ 3405.300440] EXT4-fs (sdb1): mounted filesystem with ordered data mode. Opts: (null)
[ 3661.286984] usb 2-1: USB disconnect, device number 5
[ 3661.293541] sd 6:0:0:0: [sdb] UNKNOWN(0x2003) Result: hostbyte=0x01 driverbyte=0x00
[ 3661.293551] sd 6:0:0:0: [sdb] CDB: opcode=0x2a 2a 00 00 15 15 a0 00 00 f0 00
[ 3661.293557] blk_update_request: I/O error, dev sdb, sector 1381792
[ 3661.293635] EXT4-fs warning (device sdb1): ext4_end_bio:329: I/O error -5 writing to inode 13 (offset 0 size 0 starting block 173056)
[ 3661.293641] Buffer I/O error on device sdb1, logical block 172544
[ 3661.293648] Buffer I/O error on device sdb1, logical block 172545
[ 3661.293652] Buffer I/O error on device sdb1, logical block 172546
[ 3661.293656] Buffer I/O error on device sdb1, logical block 172547
[ 3661.293659] Buffer I/O error on device sdb1, logical block 172548
[ 3661.293663] Buffer I/O error on device sdb1, logical block 172549
[ 3661.293666] Buffer I/O error on device sdb1, logical block 172550
[ 3661.293670] Buffer I/O error on device sdb1, logical block 172551
[ 3661.293673] Buffer I/O error on device sdb1, logical block 172552
[ 3661.293677] Buffer I/O error on device sdb1, logical block 172553
[ 3661.293895] EXT4-fs warning (device sdb1): ext4_end_bio:329: I/O error -5 writing to inode 13 (offset 0 size 0 starting block 173312)
[ 3661.294111] EXT4-fs warning (device sdb1): ext4_end_bio:329: I/O error -5 writing to inode 13 (offset 0 size 0 starting block 173568)
[ 3661.294332] EXT4-fs warning (device sdb1): ext4_end_bio:329: I/O error -5 writing to inode 13 (offset 0 size 0 starting block 173824)
[ 3661.294549] EXT4-fs warning (device sdb1): ext4_end_bio:329: I/O error -5 writing to inode 13 (offset 0 size 0 starting block 174080)
[ 3661.294763] EXT4-fs warning (device sdb1): ext4_end_bio:329: I/O error -5 writing to inode 13 (offset 0 size 0 starting block 174336)
[ 3661.294975] EXT4-fs warning (device sdb1): ext4_end_bio:329: I/O error -5 writing to inode 13 (offset 0 size 0 starting block 174592)
[ 3661.295188] EXT4-fs warning (device sdb1): ext4_end_bio:329: I/O error -5 writing to inode 13 (offset 0 size 0 starting block 174848)
[ 3661.295401] EXT4-fs warning (device sdb1): ext4_end_bio:329: I/O error -5 writing to inode 13 (offset 0 size 0 starting block 175104)
[ 3661.295612] EXT4-fs warning (device sdb1): ext4_end_bio:329: I/O error -5 writing to inode 13 (offset 0 size 0 starting block 175360)
[ 3661.296658] sd 6:0:0:0: [sdb] UNKNOWN(0x2003) Result: hostbyte=0x01 driverbyte=0x00
[ 3661.296663] sd 6:0:0:0: [sdb] CDB: opcode=0x2a 2a 00 00 15 16 90 00 00 f0 00
[ 3661.296667] blk_update_request: I/O error, dev sdb, sector 1382032
[ 3661.399997] JBD2: Detected IO errors while flushing file data on sdb1-8
[ 3661.400094] Aborting journal on device sdb1-8.
[ 3661.400101] JBD2: Error -5 detected when updating journal superblock for sdb1-8.
[ 3661.530153] EXT4-fs error (device sdb1): ext4_put_super:808: Couldn't clean up the journal
[ 3661.530158] EXT4-fs (sdb1): Remounting filesystem read-only
[ 3661.530160] EXT4-fs (sdb1): previous I/O error to superblock detected
[ 3916.926702] usb 2-1: new SuperSpeed USB device number 6 using xhci_hcd
[ 3916.992312] usb-storage 2-1:1.0: USB Mass Storage device detected
[ 3916.992424] scsi host7: usb-storage 2-1:1.0
[ 3917.073743] usb 2-1: USB disconnect, device number 6
[ 3917.433495] usb 2-1: new SuperSpeed USB device number 7 using xhci_hcd
[ 3917.499576] usb-storage 2-1:1.0: USB Mass Storage device detected
[ 3917.499683] scsi host8: usb-storage 2-1:1.0
[ 3917.572757] usb 2-1: USB disconnect, device number 7
[ 3925.418372] usb 2-1: new SuperSpeed USB device number 8 using xhci_hcd
[ 3925.484956] usb-storage 2-1:1.0: USB Mass Storage device detected
[ 3925.485435] scsi host9: usb-storage 2-1:1.0
[ 3925.555741] usb 2-1: USB disconnect, device number 8
[ 3927.215236] usb 2-1: new SuperSpeed USB device number 9 using xhci_hcd
[ 3927.281711] usb-storage 2-1:1.0: USB Mass Storage device detected
[ 3927.282206] scsi host10: usb-storage 2-1:1.0
[ 3927.551550] usb 2-1: USB disconnect, device number 9
[ 5369.193444] wlp3s0: deauthenticating from e8:50:8b:b9:61:d7 by local choice (Reason: 3=DEAUTH_LEAVING)Last edited by remn (2016-02-02 04:33:10)
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Please use code tags when pasting to the boards: https://wiki.archlinux.org/index.php/Fo … s_and_code
Those I/O errors on sdb1 (which I presume is the USB drive) look bad...
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Your dmesg output shows it is recognised as sdb with a ext3 filesystem which has problems. If you plug it in again and dmesg assigns sdb again, have you tried using...
gparted /dev/sdbto create a new partition table and then format it as a fat filesystem which is the most regular type for usb sticks?
Last edited by paulkerry (2016-01-31 15:09:58)
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It looks like it disconnected from USB after few seconds for some reason. Did you unplug it?
If not then the $1M question is - does it work on any other machine or with any other OS?
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Thanks for the replies. Sorry, I'll be sure to use code tags in the future.
I tried running
gparted /dev/sdbbut got the following error message:
Error opening /dev/sdb: No medium foundWhich is strange since sdb shows when I run dmesg.
I'll try plugging the drive into another computer later and see if it shows up.
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Which is strange since sdb shows when I run dmesg.
There's nothing strange here, because the device disconnects after few seconds. Read your dmesg. And please edit your previous post and add code tags, it really looks messy.
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This [1] comes to mind. I know it's a different model of flash drive but I would try it on a USB2 port to see if it works properly before declaring that flash drive broken.
R00KIE
Tm90aGluZyB0byBzZWUgaGVyZSwgbW92ZSBhbG9uZy4K
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remn wrote:Which is strange since sdb shows when I run dmesg.
There's nothing strange here, because the device disconnects after few seconds. Read your dmesg. And please edit your previous post and add code tags, it really looks messy.
I added code tags to the post. Sorry for the sloppy formatting. Luckily this is just a cheap 8GB flash drive so it's not a big loss. I was just curious to understand what had gone wrong, but this looks like a real mess so I'll just move on. Thanks for the replies!
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