[solved] Re: usb-stick accessible, but doesn't boot
ino-news at spotteswoode.dnsalias.org
Mon Dec 22 10:05:03 PST 2008
On Sun, 21 Dec 2008 14:47:54 +0100 clemens fischer wrote:
[ re. a bootable CURRENT backup system on a USB stick]
> I am very sorry for this inaccurate information. As it turns out,
> only the GENERIC kernel is bootable, my custom configuration doesn't.
> On the bright side, this indicates some feature missing from my
> normally very lean kernels, nothing is kaputt beyond repair. I'll
> just have to find out which module just has to be in the kernel to
> make it boot from an USB stick.
The "custom configuration" uses the new USB2 stack, whereas GENERIC
still includes the older one. When replacing USB2 with the old stack,
I can reliably boot the system from the stick.
I have another backup on a MMC card in a $5 card reader, but that one
boots with USB2.
The USB stick which only runs on the old stack identifies as:
ugen1.2: <SanDisk> at usbus1
umass0: <SanDisk product 0x5151, class 0/0, rev 2.00/2.00, addr 2> on usbus1
pass0: <SanDisk Cruzer Micro 8.02> Removable Direct Access SCSI-0 device
da0: <SanDisk Cruzer Micro 8.02> Removable Direct Access SCSI-0 device
umass0: SCSI over Bulk-Only; quirks = 0x0000
I don't know if any quirks would make this product work. To me it seems
as if it has to do with bulk handling?
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