...kernel panic???

I'm getting a kernel panic on a known good flash drive and also another one that should work. Any ideas???


[ 33.550686] VFS: Cannot open root device "sda1" or unknown-block(0,0)
[ 33.557155] Please append a correct "root=" boot option; here are the available partitions:
[ 33.565571] 1f00 1024 mtdblock0 (driver?)
[ 33.570583] 1f01 4096 mtdblock1 (driver?)
[ 33.575584] 1f02 519168 mtdblock2 (driver?)
[ 33.580591] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[ 33.588927] [<c002dee4>] (unwind_backtrace+0x0/0xdc) from [<c02b5c68>] (panic+0x34/0x128)
[ 33.597170] [<c02b5c68>] (panic+0x34/0x128) from [<c0008fb0>] (mount_block_root+0x25c/0x2b4)
[ 33.605666] [<c0008fb0>] (mount_block_root+0x25c/0x2b4) from [<c00091a0>] (prepare_namespace+0x12c/0x198)
[ 33.615292] [<c00091a0>] (prepare_namespace+0x12c/0x198) from [<c00085e0>] (kernel_init+0xf0/0x12c)
[ 33.624396] [<c00085e0>] (kernel_init+0xf0/0x12c) from [<c0028e7c>] (kernel_thread_exit+0x0/0x8)

I've seen that error when uBoot doesn't read the uInitrd image. It can happen if you run the mtd installer again after running the debian installer. You can fix it by running the following from uBoot:

setenv bootcmd_usb 'run set_bootargs_usb; run usb_init; ext2load usb $usb_device 0x800000 /boot/uImage; ext2load usb $usb_device 0x1100000 /boot/uInitrd; bootm 0x800000 0x1100000'