initrd problem of 2.4.10

[=?gb2312?q?hanhbkernel?=]

There is no problem using the initial RAM disk
(initrd) with kernel 2.4.9
But with kernel 2.4.10 system reports the following
messages:

RAMDISK: compressed image found at block 0
Freeing initrd memory: 1153k freed
VFS: Mounted root (ext2 filesystem)
Freeing unused kernel (memory: 224k freed)
Kernel panic: No init found. Try passing init=option
to kernel

When I compile the 2.4.10 The following option is
supported:
<*> RAM disk support(128000)   Default RAM disk size  
                           
[*]   Initial RAM disk (initrd) support   

The version of lilo is 21.6. My lilo.conf is as this:
boot=/dev/hda
map=/boot/map
install=/boot/boot.b
prompt
timeout=50
message=/boot/message
linear
default=CapitelFW-2.4.9
image=/hda2/boot/linux-2.4.91
	label=CapitelFW-2.4.9
	initrd=/hda2/root/initrd.gz
	append="root=/dev/ram0 init=linuxrc rw"
image=/hda2/boot/linux-2.4.10-ac
	label=CapitelFW-ac12
	initrd=/hda2/root/initrd.gz
	append="root=/dev/ram0 init=linuxrc rw"

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