I'm trying to format a disk but whatever I try after a reboot the old partition is always there.
I tried to see the partition with fdisk and format again using mkfs.ext4
mirto@mirto-C35:~$ sudo fdisk /dev/sdb
Welcome to fdisk (util-linux 2.31.1).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Comando (m per richiamare la guida): p
Disk /dev/sdb: 238,5 GiB, 256060514304 bytes, 500118192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x7f633251
Dispositivo Avvio Start Fine Settori Size Id Tipo
/dev/sdb1 2048 500117503 500115456 238,5G 83 Linux
Comando (m per richiamare la guida): q
mirto@mirto-C35:~$ sudo mkfs.ext4 -F -F /dev/sdb1
mke2fs 1.44.1 (24-Mar-2018)
Creazione del file system con 62514432 4k blocchi e 15630336 inode
Etichetta del file system=c0a5c02e-4c6c-42f4-88c9-70ba4a198346
Backup del superblocco salvati nei blocchi:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872
Allocating group tables: fatto
Scrittura delle tavole degli inode: fatto
Creating journal (262144 blocks): fatto
Scrittura delle informazioni dei super-blocchi e dell'accounting del file system:
The command enter a continous loop trying to write the super-bloks and in syslog I see:
May 6 10:19:10 mirto-C35 kernel: [ 3778.053676] ata5.00: failed command: WRITE DMA EXT
May 6 10:19:10 mirto-C35 kernel: [ 3778.053694] ata5.00: cmd 35/00:40:70:22:dd/00:05:0e:00:00/e0 tag 28 dma 688128 out
May 6 10:19:10 mirto-C35 kernel: [ 3778.053694] res 51/04:40:70:22:dd/00:05:0e:00:00/e0 Emask 0x1 (device error)
May 6 10:19:10 mirto-C35 kernel: [ 3778.053703] ata5.00: status: { DRDY ERR }
May 6 10:19:10 mirto-C35 kernel: [ 3778.053709] ata5.00: error: { ABRT }
May 6 10:19:10 mirto-C35 kernel: [ 3778.139798] ata5.00: configured for UDMA/33
May 6 10:19:10 mirto-C35 kernel: [ 3778.139816] ata5: EH complete
May 6 10:19:10 mirto-C35 kernel: [ 3778.153651] ata5.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
May 6 10:19:10 mirto-C35 kernel: [ 3778.153660] ata5.00: irq_stat 0x40000001
May 6 10:19:10 mirto-C35 kernel: [ 3778.153670] ata5.00: failed command: WRITE DMA EXT
May 6 10:19:10 mirto-C35 kernel: [ 3778.153685] ata5.00: cmd 35/00:40:70:22:dd/00:05:0e:00:00/e0 tag 30 dma 688128 out
May 6 10:19:10 mirto-C35 kernel: [ 3778.153685] res 51/04:40:70:22:dd/00:05:0e:00:00/e0 Emask 0x1 (device error)
May 6 10:19:10 mirto-C35 kernel: [ 3778.153693] ata5.00: status: { DRDY ERR }
May 6 10:19:10 mirto-C35 kernel: [ 3778.153698] ata5.00: error: { ABRT }
May 6 10:19:10 mirto-C35 kernel: [ 3778.238259] ata5.00: configured for UDMA/33
May 6 10:19:10 mirto-C35 kernel: [ 3778.238280] sd 4:0:0:0: [sdb] tag#30 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
May 6 10:19:10 mirto-C35 kernel: [ 3778.238282] sd 4:0:0:0: [sdb] tag#30 Sense Key : Illegal Request [current]
May 6 10:19:10 mirto-C35 kernel: [ 3778.238284] sd 4:0:0:0: [sdb] tag#30 Add. Sense: Unaligned write command
May 6 10:19:10 mirto-C35 kernel: [ 3778.238286] sd 4:0:0:0: [sdb] tag#30 CDB: Write(10) 2a 00 0e dd 22 70 00 05 40 00
May 6 10:19:10 mirto-C35 kernel: [ 3778.238287] print_req_error: I/O error, dev sdb, sector 249373296
May 6 10:19:10 mirto-C35 kernel: [ 3778.238387] ata5: EH complete
May 6 10:19:10 mirto-C35 kernel: [ 3778.273636] ata5.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
May 6 10:19:10 mirto-C35 kernel: [ 3778.273641] ata5.00: irq_stat 0x40000001
May 6 10:19:10 mirto-C35 kernel: [ 3778.273645] ata5.00: failed command: WRITE DMA EXT
May 6 10:19:10 mirto-C35 kernel: [ 3778.273652] ata5.00: cmd 35/00:40:b0:27:dd/00:05:0e:00:00/e0 tag 2 dma 688128 out
May 6 10:19:10 mirto-C35 kernel: [ 3778.273652] res 51/04:40:b0:27:dd/00:05:0e:00:00/e0 Emask 0x1 (device error)
May 6 10:19:10 mirto-C35 kernel: [ 3778.273655] ata5.00: status: { DRDY ERR }
May 6 10:19:10 mirto-C35 kernel: [ 3778.273657] ata5.00: error: { ABRT }
May 6 10:19:10 mirto-C35 kernel: [ 3778.328424] ata5.00: configured for UDMA/33
May 6 10:19:10 mirto-C35 kernel: [ 3778.328436] ata5: EH complete
May 6 10:19:10 mirto-C35 kernel: [ 3778.353667] ata5.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
May 6 10:19:10 mirto-C35 kernel: [ 3778.353672] ata5.00: irq_stat 0x40000001
May 6 10:19:10 mirto-C35 kernel: [ 3778.353675] ata5.00: failed command: WRITE DMA EXT
May 6 10:19:10 mirto-C35 kernel: [ 3778.353682] ata5.00: cmd 35/00:40:b0:27:dd/00:05:0e:00:00/e0 tag 4 dma 688128 out
May 6 10:19:10 mirto-C35 kernel: [ 3778.353682] res 51/04:40:b0:27:dd/00:05:0e:00:00/e0 Emask 0x1 (device error)
May 6 10:19:10 mirto-C35 kernel: [ 3778.353685] ata5.00: status: { DRDY ERR }
May 6 10:19:10 mirto-C35 kernel: [ 3778.353687] ata5.00: error: { ABRT }
May 6 10:19:10 mirto-C35 kernel: [ 3778.457184] ata5.00: configured for UDMA/33
May 6 10:19:10 mirto-C35 kernel: [ 3778.457198] ata5: EH complete
Seems that the disk is protected and I cannot write on it.
How can I clear this disk?
UPDATE
The disk is a Plextor SSD
PLEXTOR PX-256M6G-2280
The output of hdparm is
mirto@mirto-C35:~$ sudo hdparm -I /dev/sdb
[sudo] password di mirto:
/dev/sdb:
ATA device, with non-removable media
Model Number: PLEXTOR PX-256M6G-2280
Serial Number: P02439111419
Firmware Revision: 1.00
Transport: Serial, ATA8-AST, SATA II Extensions, SATA Rev 2.6, SATA Rev 3.0
Standards:
Used: ATA/ATAPI-7 T13 1532D revision 4a
Supported: 8 7 6 5 & some of 8
Configuration:
Logical max current
cylinders 16383 16383
heads 16 16
sectors/track 63 63
--
CHS current addressable sectors: 16514064
LBA user addressable sectors: 268435455
LBA48 user addressable sectors: 500118192
Logical Sector size: 512 bytes
Physical Sector size: 512 bytes
Logical Sector-0 offset: 0 bytes
device size with M = 1024*1024: 244198 MBytes
device size with M = 1000*1000: 256060 MBytes (256 GB)
cache/buffer size = unknown
Nominal Media Rotation Rate: Solid State Device
Capabilities:
LBA, IORDY(can be disabled)
Queue depth: 32
Standby timer values: spec'd by Standard, no device specific minimum
R/W multiple sector transfer: Max = 16 Current = 16
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=120ns IORDY flow control=120ns
Commands/features:
Enabled Supported:
* SMART feature set
Security Mode feature set
* Power Management feature set
* Write cache
* Look-ahead
* Host Protected Area feature set
* WRITE_BUFFER command
* READ_BUFFER command
* DOWNLOAD_MICROCODE
SET_MAX security extension
* 48-bit Address feature set
* Device Configuration Overlay feature set
* Mandatory FLUSH_CACHE
* FLUSH_CACHE_EXT
* SMART error logging
* SMART self-test
* General Purpose Logging feature set
* 64-bit World wide name
* Segmented DOWNLOAD_MICROCODE
* Gen1 signaling speed (1.5Gb/s)
* Gen2 signaling speed (3.0Gb/s)
* Gen3 signaling speed (6.0Gb/s)
* Native Command Queueing (NCQ)
* Host-initiated interface power management
* Phy event counters
* DMA Setup Auto-Activate optimization
Device-initiated interface power management
* Software settings preservation
Device Sleep (DEVSLP)
* SMART Command Transport (SCT) feature set
* SCT Write Same (AC2)
* SCT Error Recovery Control (AC3)
* SCT Features Control (AC4)
* SCT Data Tables (AC5)
* Data Set Management TRIM supported (limit 8 blocks)
Security:
supported
not enabled
not locked
frozen
not expired: security count
supported: enhanced erase
6min for SECURITY ERASE UNIT. 6min for ENHANCED SECURITY ERASE UNIT.
Logical Unit WWN Device Identifier: 50023031002d3f41
NAA : 5
IEEE OUI : 002303
Unique ID : 1002d3f41
Device Sleep:
DEVSLP Exit Timeout (DETO): 100 ms (drive)
Minimum DEVSLP Assertion Time (MDAT): 10 ms (drive)
Checksum: correct
mirto@mirto-C35:~$
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