Re: USB drive mounted Read-only; what to do ?
On Fri, Dec 19, 2014 at 07:55:35AM -0300, Renaud OLGIATI wrote:
> On Fri, 19 Dec 2014 11:42:44 +0100
> Stephan Seitz <stse+debian@fsing.rootsland.net> wrote:
>
> > The output of dmesg may give more information.
>
> after a # dmesg -c > /dev/null
>
> # dmesg
> [916392.905430] usb 3-6.2: new high-speed USB device number 8 using ehci_hcd
> [916393.015968] usb 3-6.2: New USB device found, idVendor=0781, idProduct=556b
> [916393.015975] usb 3-6.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
> [916393.015980] usb 3-6.2: Product: Cruzer Edge
> [916393.015983] usb 3-6.2: Manufacturer: SanDisk
> [916393.015985] usb 3-6.2: SerialNumber: 200435151107E3936DDD
> [916393.016660] scsi30 : usb-storage 3-6.2:1.0
> [916394.022745] scsi 30:0:0:0: Direct-Access SanDisk Cruzer Edge 1.26 PQ: 0 ANSI: 5
> [916394.023549] sd 30:0:0:0: Attached scsi generic sg9 type 0
> [916394.025152] sd 30:0:0:0: [sdi] 125031680 512-byte logical blocks: (64.0 GB/59.6 GiB)
> [916394.028162] sd 30:0:0:0: [sdi] Write Protect is on
> [916394.028169] sd 30:0:0:0: [sdi] Mode Sense: 43 00 80 00
> [916394.031417] sd 30:0:0:0: [sdi] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
> [916394.055963] sdi: sdi1
> [916394.063433] sd 30:0:0:0: [sdi] Attached SCSI removable disk
>
> then:
>
> # dd bs=4M if=debian-live-7.6.0-amd64-rescue.iso of=/dev/sdi && sync
> dd: opening `/dev/sdi': Read-only file system
Maybe you could try unmounting it first, before the dd? (I guess you'd
be unmounting /dev/sdi1.)
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