[NBLUG/talk] Using a USB mass storage device as a root filesystem

Augie Schwer augie.schwer at gmail.com
Tue Oct 5 13:53:22 PDT 2004


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On Thu, 23 Sep 2004 07:54:12 -0700, Lincoln Peters <sampln at sbcglobal.net> wrote:
> I've installed Knoppix 3.4 on an external USB 2.0 hard disk.  I've also
> created a custom kernel that has support for SCSI disks, USB, and USB
> mass storage devices built-in (not as modules).  So theoretically, if
> the USB hard drive is the only USB mass storage device attached to the
> computer, I could load the kernel from a boot floppy, then use /dev/sda1
> (which would be the external hard disk) as my root filesystem.
> However, it seems that, when the usb-storage part of the kernel is run,
> it does *not* immediately scan for attached storages devices.  This
> means that, by the time my computer is ready to mount the root
> filesystem, the hard disk is still not configured, and so the boot
> process fails.
> Can I change the behavior of the usb-storage code so that it scans for
> USB mass storage devices immediately upon running?

Lincoln,

Check out this thread; I think it is what you are looking for:

http://www.uwsg.iu.edu/hypermail/linux/kernel/0307.0/0847.html

Augie.


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