I recall putting an SD card in two different Ricoh readers under different
Linux OS' and being baffled until I worked out the read-only tab worked in
different positions in each, after which the SD card was convinced it was
read only after you swapped back, so you had to switch it a second time
before writing on the other reader!
Some local reality distortion in which binary has more than two values??
RC
Robin Catling
Full Circle Podcast
On 18 November 2011 18:31, James Courtier-Dutton <james.dutton@???>wrote:
> On 18 November 2011 16:58, Bryn Jones <bryn.jones1@???> wrote:
> > Thanks Vic,
> >
> > I'm going to 'assume' you are right re SDHC (for now).
> >
> > All the kern.log reveals is -
> > Nov 18 16:54:08 HP2 kernel: [135648.708306] usb 1-5: new high speed USB
> > device using ehci_hcd and address 59
> > Nov 18 16:54:08 HP2 kernel: [135648.849530] scsi27 : usb-storage 1-5:1.0
> > Nov 18 16:54:09 HP2 kernel: [135649.849286] scsi 27:0:0:0: Direct-Access
> > Single Flash Reader 1.00 PQ: 0 ANSI: 0
> > Nov 18 16:54:09 HP2 kernel: [135649.851726] sd 27:0:0:0: Attached scsi
> > generic sg1 type 0
> > Nov 18 16:54:10 HP2 kernel: [135650.374744] sd 27:0:0:0: [sdb] 31090688
> > 512-byte logical blocks: (15.9 GB/14.8 GiB)
> > Nov 18 16:54:10 HP2 kernel: [135650.375604] sd 27:0:0:0: [sdb] Write
> Protect
> > is on
> > Nov 18 16:54:10 HP2 kernel: [135650.375622] sd 27:0:0:0: [sdb] Mode
> Sense:
> > 03 00 80 00
> > Nov 18 16:54:10 HP2 kernel: [135650.377610] sd 27:0:0:0: [sdb] No Caching
> > mode page present
> > Nov 18 16:54:10 HP2 kernel: [135650.377632] sd 27:0:0:0: [sdb] Assuming
> > drive cache: write through
> > Nov 18 16:54:10 HP2 kernel: [135650.386593] sd 27:0:0:0: [sdb] No Caching
> > mode page present
> > Nov 18 16:54:10 HP2 kernel: [135650.386612] sd 27:0:0:0: [sdb] Assuming
> > drive cache: write through
> > Nov 18 16:54:10 HP2 kernel: [135650.389249] sdb: sdb1
> > Nov 18 16:54:10 HP2 kernel: [135650.396193] sd 27:0:0:0: [sdb] No Caching
> > mode page present
> > Nov 18 16:54:10 HP2 kernel: [135650.396219] sd 27:0:0:0: [sdb] Assuming
> > drive cache: write through
> > Nov 18 16:54:10 HP2 kernel: [135650.396243] sd 27:0:0:0: [sdb] Attached
> SCSI
> > removable disk
> >
> > Out of which all I see of use is the write protected line (again not
> > expert!).
> >
> > Any other thoughts?
> >
> > Cheers
> > Bryn
> >
>
> A common failure mode for flash devices is to lock them in Read Only mode.
> There is probably a fault on the SD card. I have seen the same thing
> happen with USB memory sticks.
>
> --
> Please post to: Hampshire@???
> Web Interface: https://mailman.lug.org.uk/mailman/listinfo/hampshire
> LUG URL: http://www.hantslug.org.uk
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>
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Please post to: Hampshire@???
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