On Mon, Sep 06, 2010 at 11:02:27AM +1000, Greg Ungerer wrote:
> Hi Angelo,
>
> angelo wrote:
>> i downgraded from kernel 2.6.29 to 2.6.24, but i can't anymore get the
>> romfs that was running with the 2.6.29:
>> ttyS0 at 0x100001c0 (irq = 73) is a builtin ColdFire UART
>> ttyS1 at 0x10000200 (irq = 74) is a builtin ColdFire UART
>> RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
>> nbd: registered device at major 43
>> dm9000 Ethernet Driver
>> physmap platform flash device: 00400000 at ffc00000
>> physmap-flash physmap-flash.0: map_probe failed
>> uclinux[mtd]: RAM probe address=0x16b500 size=0x53000
>> Creating 1 MTD partitions on "RAM":
>> 0x00000000-0x00053000 : "ROMfs"
>> Generic platform RAM MTD, (c) 2004 Simtec Electronics
>> block2mtd: version $Revision: 1.30 $
>> TCP cubic registered
>> VFS: Cannot open root device "<NULL>" or unknown-block(0,0)
>> Please append a correct "root=" boot option; here are the available
>> partitions:
>> 1f00 332 mtdblock0 (driver?)
>> Kernel panic - not syncing: VFS: Unable to mount root fs on
>> unknown-block(0,0)
>
> You didn't show all the boot trace. Do you have a "root=/dev/mtdblock0"
> set in the kernal args?
This happens also if you switch from a uclinux kernel (no need for
"root=/dev/mtdblock0") to a vanilla kernel ("root=/dev/mtdblock0" needed)
Philippe
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