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On Friday 04 Jan 2013 19:12:18 Nikos Chantziaras wrote: |
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> On 04/01/13 18:32, Mick wrote: |
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> > I was trying to zero out a USB stick and at some point it seems to have |
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> > locked itself up. By that I mean that for all intends and purposes I |
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> > cannot write to it in any conceivable way. |
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> |
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> Can you elaborate on that? Do you get any error messages from dd or in |
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> dmesg? |
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dd if=/dev/zero of=/mnt/iso/bigfile.txt bs=512 |
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dd: writing ‘/mnt/iso/bigfile.txt’: Input/output error |
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376705+0 records in |
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376704+0 records out |
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192872448 bytes (193 MB) copied, 1.01944 s, 189 MB/s |
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rm /mnt/iso/bigfile.txt |
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rm: cannot remove ‘/mnt/iso/bigfile.txt’: Read-only file system |
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The output of mount: |
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/dev/sdb1 on /mnt/iso type vfat (rw) |
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(was mounted rw as root just in case). |
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This is what dmesg shows: |
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hub 2-1:1.0: state 7 ports 8 chg 0000 evt 0002 |
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hub 2-1:1.0: port 1, status 0101, change 0001, 12 Mb/s |
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hub 2-1:1.0: debounce: port 1: total 100ms stable 100ms status 0x101 |
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hub 2-1:1.0: port 1 not reset yet, waiting 10ms |
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usb 2-1.1: new high-speed USB device number 8 using ehci_hcd |
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hub 2-1:1.0: port 1 not reset yet, waiting 10ms |
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usb 2-1.1: default language 0x0409 |
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usb 2-1.1: udev 8, busnum 2, minor = 135 |
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usb 2-1.1: New USB device found, idVendor=1307, idProduct=0163 |
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usb 2-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 |
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usb 2-1.1: Product: USB Mass Storage Device |
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usb 2-1.1: Manufacturer: USBest Technology |
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usb 2-1.1: SerialNumber: 08032204c2f5fd |
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usb 2-1.1: usb_probe_device |
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usb 2-1.1: configuration #1 chosen from 1 choice |
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usb 2-1.1: adding 2-1.1:1.0 (config #1, interface 0) |
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usb-storage 2-1.1:1.0: usb_probe_interface |
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usb-storage 2-1.1:1.0: usb_probe_interface - got id |
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scsi10 : usb-storage 2-1.1:1.0 |
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scsi 10:0:0:0: Direct-Access Ut163 USB2FlashStorage 0.00 PQ: 0 ANSI: 2 |
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sd 10:0:0:0: Attached scsi generic sg2 type 0 |
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sd 10:0:0:0: [sdb] 1974271 512-byte logical blocks: (1.01 GB/963 MiB) |
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sd 10:0:0:0: [sdb] Write Protect is off |
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sd 10:0:0:0: [sdb] Mode Sense: 00 00 00 00 |
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sd 10:0:0:0: [sdb] Asking for cache data failed |
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sd 10:0:0:0: [sdb] Assuming drive cache: write through |
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sd 10:0:0:0: [sdb] Asking for cache data failed |
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sd 10:0:0:0: [sdb] Assuming drive cache: write through |
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sdb: sdb1 |
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sd 10:0:0:0: [sdb] Asking for cache data failed |
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sd 10:0:0:0: [sdb] Assuming drive cache: write through |
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sd 10:0:0:0: [sdb] Attached SCSI removable disk |
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I can't recall the hdparm errors (run it on a different box) but if important |
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I can get these for you. |
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Thanks. |
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-- |
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Regards, |
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Mick |
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