On Thu, 14 Jul 2005, Gildas Bayard wrote:
> Hello,
>
> I've just bought a dell Optiplex SX 280 computer and my usb2 hdd doesn't
> work on it.
> I'm running Fedora Core 4 on a 2.6.12-1.1387_FC4smp kernel
> The hdd worked fine with Fedora Core 3 on an other computer.
> Does-it come from FC4? from the dell computer? From the kernel EHCI or
> other module?
> Since I've got the same error on gentoo on the same computer but the hdd
> worked fine with FC3 on an other computer I tend to think that it comes
> from the computer (new hardware not yet supported?), but I'm not sure at
> all.
> The chipset is an intel 915 Express
> I/O controller is an intel 82801FB (ICH6)
> I dump here the dmesg trace so that you can give me a hint.
> My entire life is on this usb drive (pictures, movies, music...).
> Arghhhh! :|
The patch below may fix your problem. It has been submitted but not yet
accepted. It addresses a bug in the USB drive's firmware -- not in the
computer, the kernel, a driver, or anything else in the distribution.
By the way, what kernel version were you using with FC3?
Alan Stern
===== drivers/usb/storage/scsiglue.c 1.95 vs edited =====
--- 1.95/drivers/usb/storage/scsiglue.c 2005-02-10 16:22:46 -05:00
+++ edited/drivers/usb/storage/scsiglue.c 2005-02-22 10:50:08 -05:00
@@ -154,6 +154,14 @@
* If this device makes that mistake, tell the sd driver. */
if (us->flags & US_FL_FIX_CAPACITY)
sdev->fix_capacity = 1;
+
+ /* Some devices report a SCSI revision level above 2 but are
+ * unable to handle the REPORT LUNS command (for which
+ * support is mandatory at level 3). Since we already have
+ * a Get-Max-LUN request, we won't lose much by setting the
+ * revision level down to 2. The only devices that would be
+ * affected are those with sparse LUNs. */
+ sdev->scsi_level = SCSI_2;
} else {
/* Non-disk-type devices don't need to blacklist any pages
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