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[U-Boot-Users] how to set env in u-boot to boot ramdisk?

From: zhuzhenhua <zzh.hust@gm...> - 2005-12-30 03:06

i can run the kernel and ramdisk correct when i embedded ramdisk in
kernel,and i use
bootm can bootm them correctly.

but if i make vmlinux and ramdisk as two image to bootm
it get VFS panic can't find root device

as follow is my use of mkimage
  mips_fp_le-objcopy -O binary -R .note -R.comment -S vmlinux linux.bin
  gzip -9 linux.bin=09
./mkimage -A mips -O linux -T kernel -C gzip -a 0x80008000 -e
0x80170040 -n "Linux" -d linux.bin.gz uImage
./mkimage -n 'Simple Initrd Image' -A mips -O linux -T ramdisk -C gzip
 -d initrd.bin initrd

and i set bootargs root=3D/dev/ram0
and load uImage to 0x80600000, ramdisk.gz to 0x80700000
and then bootm 0x80600000 0x80700000



Best regards

zhuzhenhua

Thread View

Thread	Author	Date
[U-Boot-Users] how to set env in u-boot to boot ramdisk?	zhuzhenhua <zzh.hust@gm...>

Re: [U-Boot-Users] how to set env in u-boot to boot ramdisk?

From: Andrey Volkov <avolkov@va...> - 2005-12-30 07:04

Try this:
  root=01:00
or
  root=0100
(i.e. point major:minor)

zhuzhenhua wrote:
> i can run the kernel and ramdisk correct when i embedded ramdisk in
> kernel,and i use
> bootm can bootm them correctly.
> 
> but if i make vmlinux and ramdisk as two image to bootm
> it get VFS panic can't find root device
> 
> as follow is my use of mkimage
>   mips_fp_le-objcopy -O binary -R .note -R.comment -S vmlinux linux.bin
>   gzip -9 linux.bin	
> ./mkimage -A mips -O linux -T kernel -C gzip -a 0x80008000 -e
> 0x80170040 -n "Linux" -d linux.bin.gz uImage
> ./mkimage -n 'Simple Initrd Image' -A mips -O linux -T ramdisk -C gzip
>  -d initrd.bin initrd
> 
> and i set bootargs root=/dev/ram0
> and load uImage to 0x80600000, ramdisk.gz to 0x80700000
> and then bootm 0x80600000 0x80700000
> 
> 
> 
> Best regards
> 
> zhuzhenhua
> 
--
Regards
Andrey Volkov