Can't run 8M ramdisk at 2.4.20 linux

Hi All:

    I build a 8M ramdisk file, it  works fine at 2.4.25 linux but fail
in 2.4.20.Why?
I do follow command to make 8M ramdsik, all files in the ramdisk is from
pRamdisk (download from denx ftp site).

dd if=/dev/zero of=new_ramdisk bs=1024k count=8
/sbin/mke2fs -F -m0 new_ramdisk
/sbin/tune2fs -c 0 new_ramdisk

RAMDISK: Compressed image found at block 0
Freeing initrd memory: 1434k freed
VFS: Mounted root (ext2 filesystem).
Freeing unused kernel memory: 56k init
attempt to access beyond end of device
01:00: rw=0, want=1647259183, limit=16384
attempt to access beyond end of device
01:00: rw=0, want=1647259183, limit=16384
attempt to access beyond end of device
01:00: rw=0, want=1647259183, limit=16384
attempt to access beyond end of device
01:00: rw=0, want=1647259183, limit=16384
Kernel panic: No init found.  Try passing init= option to kernel.
 <0>Rebooting in 180 seconds..

EMAIL [off-list ref] wrote:

Hi All:

    I build a 8M ramdisk file, it  works fine at 2.4.25 linux but fail
in 2.4.20.Why?
I do follow command to make 8M ramdsik, all files in the ramdisk is from
pRamdisk (download from denx ftp site).

Possibly a kernel config error.  Look for CONFIG_BLK_DEV_RAM_SIZE in your .config.  You need

CONFIG_BLK_DEV_RAM_SIZE=8192

Alex