Re: cannot write to usb drive
Umarzuki Mochlis wrote:
> 2009/9/16 PierPaolo <pierpaolo.franco@gmail.com>:
>> try mounting with -o rw,nls=utf-8
>>
>
> umarzuki@ctrl:~$ sudo mount -o rw,nls=utf-8 /dev/sdc1 /mnt/
> mount: block device /dev/sdc1 is write-protected, mounting read-only
> 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
>
> umarzuki@ctrl:~$ dmesg | tail
> [ 1053.751439] sd 10:0:0:0: [sdc] 3915776 512-byte hardware sectors (2005
> [ MB) 1053.751439] sd 10:0:0:0: [sdc] Write Protect is on
> [ 1053.751439] sd 10:0:0:0: [sdc] Mode Sense: 23 00 80 00
> [ 1053.751439] sd 10:0:0:0: [sdc] Assuming drive cache: write through
> [ 1053.751439] sdc: sdc1
> [ 1053.752878] sd 10:0:0:0: [sdc] Attached SCSI removable disk
> [ 1053.752945] sd 10:0:0:0: Attached scsi generic sg4 type 0
> [ 1057.236058] FAT: utf8 is not a recommended IO charset for FAT
> filesystems, filesystem will be case sensitive!
> [ 1298.777554] hda-intel: Invalid position buffer, using LPIB read
> method instead.
> [ 1340.142271] FAT: Unrecognized mount option "nls=utf-8" or missing value
>
> This flash drive was okay a few days ago but now it has become like
> this and I already lost its packaging and the only thing I could tell
> that it's brand is Apacer
Do you experience the same on another PC (windows/linux)?
can you post the output of
fdisk -l /dev/sd<X>
<X> is you drive letter i.e. "c" above
Sometimes messages are result of misinterpretation, so it could be another
issue behind - try to mount it on other system
Finally if nothing else helps and if you can read only files, backup them on
another drive and try formatting this one.
regards
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