Hi!
My pendrive partitions are shown in the FileManager (nautilus or pcmanfm) drive explorer window. Upon clicking to look into it or
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sudo mount /dev/sdc2 /media/sdc2
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Error mounting: mount exited with exit code 1: helper failed with:
mount: block device /dev/sdc2 is write-protected, mounting read-only
mount: wrong fs type, bad option, bad superblock on /dev/sdc2,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
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sudo mount /dev/sdc1 /media/sdc1
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mount: block device /dev/sdc1 is write-protected, mounting read-only
Report:
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GParted 0.12.1 --enable-libparted-dmraid
Libparted 2.3
Check and repair file system (ext4) on /dev/sdc2 00:00:00 ( ERROR )
calibrate /dev/sdc2 00:00:00 ( SUCCESS )
path: /dev/sdc2
start: 20,973,568
end: 31,266,815
size: 10,293,248 (4.91 GiB)
check file system on /dev/sdc2 for errors and (if possible) fix them 00:00:00 ( ERROR )
e2fsck -f -y -v /dev/sdc2
Disk write-protected; use the -n option to do a read-only
check of the device.
e2fsck 1.42.5 (29-Jul-2012)
e2fsck: Read-only file system while trying to open /dev/sdc2
libparted messages ( INFO )
Unable to open /dev/sdc read-write (Read-only file system). /dev/sdc has been opened read-only.
Unable to open /dev/sdc read-write (Read-only file system). /dev/sdc has been opened read-only.
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e2fsck -f -y -v /dev/sdc1
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e2fsck 1.42.5 (29-Jul-2012)
Warning! /dev/sdc1 is mounted.
e2fsck: Operation not permitted while trying to open /dev/sdc1
You must have r/w access to the filesystem or be root
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e2fsck -f -y -v /dev/sdc
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e2fsck 1.42.5 (29-Jul-2012)
/dev/sdc is in use.
e2fsck: Cannot continue, aborting.
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umount /media/sdc
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umount: /media/sdc is not mounted (according to mtab)
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sudo e2fsck -f -n -v /dev/sdc
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e2fsck 1.42.5 (29-Jul-2012)
ext2fs_open2: Bad magic number in super-block
e2fsck: Superblock invalid, trying backup blocks...
e2fsck: Bad magic number in super-block while trying to open /dev/sdc
The superblock could not be read or does not describe a correct ext2
filesystem. If the device is valid and it really contains an ext2
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
e2fsck -b 8193 <device>
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dmesg
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[ 2547.030210] usb 1-5: USB disconnect, device number 4
[ 2548.536452] usb 1-5: new high-speed USB device number 5 using ehci-pci
[ 2548.660700] usb 1-5: New USB device found, idVendor=0781, idProduct=5567
[ 2548.660709] usb 1-5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 2548.660716] usb 1-5: Product: Cruzer Blade
[ 2548.660722] usb 1-5: Manufacturer: SanDisk
[ 2548.660728] usb 1-5: SerialNumber: 20060876920A0992874A
[ 2548.662280] scsi6 : usb-storage 1-5:1.0
[ 2549.664258] scsi 6:0:0:0: Direct-Access SanDisk Cruzer Blade 1.26 PQ: 0 ANSI: 5
[ 2549.664622] sd 6:0:0:0: Attached scsi generic sg3 type 0
[ 2549.666098] sd 6:0:0:0: [sdc] 31266816 512-byte logical blocks: (16.0 GB/14.9 GiB)
[ 2549.667988] sd 6:0:0:0: [sdc] Write Protect is on
[ 2549.667999] sd 6:0:0:0: [sdc] Mode Sense: 43 00 80 00
[ 2549.668979] sd 6:0:0:0: [sdc] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[ 2549.685704] sdc: sdc1 sdc2
[ 2549.690857] sd 6:0:0:0: [sdc] Attached SCSI removable disk
[ 2552.906044] FAT-fs (sdc1): utf8 is not a recommended IO charset for FAT filesystems, filesystem will be case sensitive!
[ 2650.406111] EXT4-fs (sdc2): INFO: recovery required on readonly filesystem
[ 2650.406123] EXT4-fs (sdc2): write access unavailable, cannot proceed
[ 2654.211098] EXT4-fs (sdc2): INFO: recovery required on readonly filesystem
[ 2654.211110] EXT4-fs (sdc2): write access unavailable, cannot proceed
[ 2665.802358] EXT4-fs (sdc2): INFO: recovery required on readonly filesystem
[ 2665.802369] EXT4-fs (sdc2): write access unavailable, cannot proceed
[ 2741.044567] SGI XFS with ACLs, security attributes, realtime, large block/inode numbers, no debug enabled
[ 2789.333051] FAT-fs (sdc1): utf8 is not a recommended IO charset for FAT filesystems, filesystem will be case sensitive!
[ 3416.644841] EXT4-fs (sdc2): INFO: recovery required on readonly filesystem
[ 3416.644847] EXT4-fs (sdc2): write access unavailable, cannot proceed
[ 3423.070968] EXT4-fs (sdc2): INFO: recovery required on readonly filesystem
[ 3423.070980] EXT4-fs (sdc2): write access unavailable, cannot proceed
How to protect my data, but mount, take a backup and then recover the pendrive? Should I run:
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e2fsck -b 8193 /dev/sdc
I am beyond my limits of knowhow!