Hi,

I encounter a error when installing the latest kernel 2.6.34 in centos.

Steps:

1. download source code.

2.tar -xvf 2.6.34.tar.gz

3.use the .config file of current system in /boot directory.

4.make ,make modules_install, make install,

5.reboot.

6.error:: accur.

Reading all physical volumes. This may take a while ...

Activating logical volumes

  Volume group "VolGroup00" not found

Creating root device.

Mounting root filesystem.

mount: could not find filesystem"/dev/root"

setting up other filesystems.

...

After comparing the latest initrd.img and the current system initrd.img . The differnce below:

the currenet system has more modules before excuting the LVM operations. these modules is dm-mem-cache.ko ,  dm-message.ko  and dm-raid45.ko which depends the others. I know the centos 5.5 ' s kernel is 2.6.18. which has dm-raid45.ko module.

I do not know which  changes to 2.6.34 about LVM. I think the errro is about the LVM.

Anyone can give me answer or advice. Thanks.