Messages in this thread | | | Date | Mon, 29 Dec 2003 13:14:25 -0800 | From | "Randy.Dunlap" <> | Subject | Re: Can't mount USB partition as root |
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On Mon, 29 Dec 2003 13:38:12 -0500 Wakko Warner <wakko@animx.eu.org> wrote:
| > > Is it possible to boot kernel with root from /dev/sda1 (USB)? | > > partition table: whole /dev/sda is one partition (sda1), type 83 (Linux). | > > Tried also switching on and off hotplugging in kernel and it didn't help. | > | > Well, is the device detected and the partition table scanned before the | > root mount is attempted? | > | > I believe this should work given you've compiled in all the necessary | > code. Please capture the dmesg using serial console/netconsole/whatever | > and post it along with your .config. | | I did this with 2.4 a few months back. Basically all I did was add the same | delay before mounting root as the kernel does with mounting a root floppy. | Problem is the kernel is too fast for the usb code to find the disk. | | I'v been wanting to ask this question. How can I make the kernel "sleep" | for say 5 seconds (or pause or something, whatever is required to delay | execution) to wait for the device to become available. I tried the same | thing doing nfsroot with a cardbus nic which fails because the kernel | doesn't see the card until after it attempted to mount /
I posted a patch for 2.4.22 which someone tested and reported as working. The patch is here: http://www.xenotime.net/linux/usb/usbboot-2422.patch
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