write-protected, flash disk

mam statsi flash disk, kt. prestal fungovat po tom ako som ho raz uplne "zaplnil". po prikaze:

mount /dev/sdb /mnt/sdb

mi vypise:

mount: block device /dev/sdb is write-protected, mounting read-only
mount: you must specify the filesystem type

ten flah disk nema ziaden prepinac - ziaden cudlik na write protected.

prikaz

dmesg

[17191940.504000]   Vendor: USB       Model: Flash Disk        Rev: 1.89
[17191940.504000]   Type:   Direct-Access                      ANSI SCSI revision: 02
[17191940.564000] SCSI device sdb: 64000 512-byte hdwr sectors (33 MB)
[17191940.564000] sdb: Write Protect is on
[17191940.564000] sdb: Mode Sense: 03 00 80 00
[17191940.564000] sdb: assuming drive cache: write through
[17191940.568000] SCSI device sdb: 64000 512-byte hdwr sectors (33 MB)
[17191940.568000] sdb: Write Protect is on
[17191940.568000] sdb: Mode Sense: 03 00 80 00
[17191940.568000] sdb: assuming drive cache: write through
[17191940.568000]  sdb: unknown partition table
[17191940.580000] sd 2:0:0:0: Attached scsi removable disk sdb
[17191940.580000] sd 2:0:0:0: Attached scsi generic sg1 type 0
[17191995.460000] cramfs: wrong magic
[17191995.460000] VFS: Can't find ext3 filesystem on dev sdb.
[17191995.464000] NTFS-fs warning (device sdb): is_boot_sector_ntfs(): Invalid boot sector checksum.
[17191995.464000] NTFS-fs error (device sdb): read_ntfs_boot_sector(): Primary boot sector is invalid.
[17191995.464000] NTFS-fs error (device sdb): read_ntfs_boot_sector(): Mount option errors=recover not used. Aborting without trying to recover.
[17191995.464000] NTFS-fs error (device sdb): ntfs_fill_super(): Not an NTFS volume.
[17191995.468000] FAT: bogus logical sector size 65535
[17191995.468000] VFS: Can't find a valid FAT filesystem on dev sdb.
[17191995.600000] UDF-fs: No VRS found
[17191995.732000] Unable to identify CD-ROM format.

ls -al /dev/sdb*

brw-rw---- 1 root plugdev 8, 16 2007-01-14 23:49 /dev/sdb

nodev   binfmt_misc
        vfat
        udf
        iso9660

fakt neviem ako mam ten disk naformatovat alebo co s nim spravit. O zaxranu dat mi neide (nebolo tam nic podstatne).

mkdosfs -F 32 /dev/sdb

mkdosfs 2.11 (12 Mar 2005)
mkdosfs: unable to open /dev/sdb

dakujem za akukolvek radu

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nemala by byt na tom flashi vytvorena particia (sdb1)?!

15.1.2007 12:01 wewek | Praha
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mozno ano, neviem ale skusal som to formatovat aj takto:

mkfs -t vfat /dev/sdb1
mkfs.vfat 2.11 (12 Mar 2005)
/dev/sdb1: No such file or directory

a ja takto:

# mkfs -t vfat /dev/sdb
mkfs.vfat 2.11 (12 Mar 2005)
mkfs.vfat: unable to open /dev/sdb

pouzil som aj Qtparted, ale bez uspexu. nemoze s flash diskom pracovat lebo je "zapnuta oxrana proti zapisu write-protected" primominam ze ziaden spinac tam nie je! :(

15.1.2007 12:30 disposable | skóre: 23
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particia sa neda vytvorit prikazom mkfs, ale fdiskom alebo cfdiskom. neviem ako je to v fdisku, alebo cfdisku, ale sfdisk ma option

-f or --force

Do what I say, even if it is stupid.

a teda mozete ho prinutit vytvorit particiu aj napriek tomu ze sa hlasi ako write-protected.

if it ain't broke, don't fix it

15.1.2007 15:04 wewek | Praha
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# sfdisk -f /dev/sdb
/dev/sdb: Read-only file system

sfdisk: cannot open /dev/sdb read-write

tak neviem...

15.1.2007 16:23 wewek | Praha
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#  fdisk /dev/sdb
You will not be able to write the partition table.
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel. Changes will remain in memory only,
until you decide to write them. After that, of course, the previous
content won't be recoverable.

Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)

Command (m for help): d
No partition is defined yet!

Command (m for help): n
Command action
   e   extended
   p   primary partition (1-4)
p
Partition number (1-4): 1-4
First cylinder (1-1000, default 1): 1
Last cylinder or +size or +sizeM or +sizeK (1-1000, default 1000): 1000

Command (m for help): w

Unable to write /dev/sdb

28.3.2008 09:00 Jan Šimák | skóre: 37 | Hradec Králové
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Zkusil bych použít volbu:

o create a new empty DOS partition table

stáhni si nějakou utilitu od nějakého výrobce usb disků a formátuj třeba od aceru: http://www.apacer.com/en/support/downloads/Repair_v2.9.1.1.zip

disk bude plně funkční

27.3.2008 21:53 Peter Golis | skóre: 64 | blog: Bežné záležitosti | Bratislava
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vcelku zaujimavy potreh, ale je ten nastroj funkcny aspon pod wine?

~$ unzip Repair_v2.9.1.1.zip 
Archive:  Repair_v2.9.1.1.zip
  inflating: Repair_v2.9.1.1.exe     
golisp@NOTEBOOK:~$ file Repair_v2.9.1.1.exe 
Repair_v2.9.1.1.exe: MS-DOS executable PE  for MS Windows (GUI) Intel 80386 32-bit
~$

Dotaz: write-protected, flash disk

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