On Fri, Feb 10, 2006 at 03:58:35AM -0700, Yu Yang wrote:
> UML reports errors similar to below:
>
> [42949373.440000] VFS: Cannot open root device "ubd" or unknown-block(0,0)
> [42949373.440000] Please append a correct "root=" boot option
> [42949373.440000] Kernel panic - not syncing: VFS: Unable to mount root fs
> on unknown-block(0,0)
Looks like you don't have the ubd driver configured. Run
linux --showconfig | grep UBD
If that doesn't show BLK_DEV_UBD configured, mrproper the tree, then run
defconfig ARCH=um before building it.
Jeff
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