From: "Peter Teoh" <htmldeveloper@gmail.com>
To: linux-fsdevel@vger.kernel.org,
Linux Driver Developers <devel@linuxdriverproject.org>,
linux-ide@vger.kernel.org
Subject: Why my USB disk drive is mounted "WriteProtect is on"?
Date: Mon, 2 Jun 2008 05:34:30 +0800 [thread overview]
Message-ID: <804dabb00806011434n47101206t40f50e2398e7a0c8@mail.gmail.com> (raw)
Got no reply from linux-usb. So trying here. In the past I was
able to mount it as "WriteProtect is off"....but one day....suddenly
it became "on" on two of my machine, but the others like 3 still
"off". So right now the status is as follows:
usb-storage: waiting for device to settle before scanning
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
scsi 6:0:0:0: Direct-Access WD 1600BEAExternal 1.02 PQ: 0 ANSI: 0
sd 6:0:0:0: [sdc] 312581808 512-byte hardware sectors (160042 MB)
sd 6:0:0:0: [sdc] Write Protect is on
sd 6:0:0:0: [sdc] Mode Sense: 12 a1 9e af
sd 6:0:0:0: [sdc] Assuming drive cache: write through
sd 6:0:0:0: [sdc] 312581808 512-byte hardware sectors (160042 MB)
sd 6:0:0:0: [sdc] Write Protect is on
sd 6:0:0:0: [sdc] Mode Sense: 12 a1 9e af
sd 6:0:0:0: [sdc] Assuming drive cache: write through
sdc: sdc1 sdc2 sdc3 < sdc5 > sdc4
sd 6:0:0:0: [sdc] Attached SCSI disk
sd 6:0:0:0: Attached scsi generic sg2 type 0
usb-storage: device scan complete
But when u plug out and insert into another machine, it may be
detected as "off", why?
With this writeprotect on, there is no way i can mount it for writing.
Appreciate your answer very much.
THanks.
--
Regards,
Peter Teoh
reply other threads:[~2008-06-01 21:34 UTC|newest]
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