Very different layout -- RE: How the Centos 5.0's kickstart initrd.img is build??

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Title: How the Centos 5.0's kickstart initrd.img is build??

Hi,

 

 I’ve tried run mkinitrd to create an initrd.img file for Centos 5 Kickstart, but it turns out that the default initrd.img is quite different from the initrd.img file created with mkinitrd. Any one know how to create a Kickstart initrd.img with custom kernel? Or the hacking steps on a existing Centos 5 kickstart initrd.img?

 

root@Centos5TestBox aaa]# ls -alF original mkinitrd/

mkinitrd/:

total 40

drwxr-xr-x 9 root root 4096 May 30 17:22 ./

drwxr-xr-x 4 root root 4096 May 30 17:29 ../

drwx------ 2 root root 4096 May 30 17:22 bin/

drwx------ 3 root root 4096 May 30 17:22 dev/

drwx------ 2 root root 4096 May 30 17:22 etc/

-rwx------ 1 root root 1833 May 30 17:22 init*

drwx------ 2 root root 4096 May 30 17:22 lib/

drwx------ 2 root root 4096 May 30 17:22 proc/

lrwxrwxrwx 1 root root    3 May 30 17:22 sbin -> bin/

drwx------ 2 root root 4096 May 30 17:22 sys/

drwx------ 2 root root 4096 May 30 17:22 sysroot/

 

original:

total 52

drwxr-xr-x 11 root root 4096 May 30 17:21 ./

drwxr-xr-x  4 root root 4096 May 30 17:29 ../

-rw-r--r--  1 root root   62 May 30 17:21 .buildstamp

-rw-r--r--  1 root root  123 May 30 17:21 .profile

lrwxrwxrwx  1 root root    4 May 30 17:21 bin -> sbin/

drwxr-xr-x  2 root root 4096 May 30 17:21 dev/

drwxr-xr-x  3 root root 4096 May 30 17:21 etc/

lrwxrwxrwx  1 root root   10 May 30 17:21 init -> /sbin/init*

drwxr-xr-x  2 root root 4096 May 30 17:21 modules/

drwxr-xr-x  2 root root 4096 May 30 17:21 proc/

drwxr-xr-x  2 root root 4096 May 30 17:21 sbin/

drwxr-xr-x  2 root root 4096 May 30 17:21 selinux/

drwxr-xr-x  2 root root 4096 May 30 17:21 sys/

drwxr-xr-x  2 root root 4096 May 30 17:21 tmp/

drwxr-xr-x  6 root root 4096 May 30 17:21 var/

root@hello11 aaa]#

 

--Guolin

 


From: kickstart-list-bounces@xxxxxxxxxx [mailto:kickstart-list-bounces@xxxxxxxxxx] On Behalf Of Guolin Cheng
Sent: Wednesday, May 30, 2007 4:45 PM
To: centos@xxxxxxxxxx; Discussion list about Kickstart
Subject: How the Centos 5.0's kickstart initrd.img is build??

 

Hi,

 Any one know how the Centos 5 kickstart initrd.img was built? I’ll be very appreciated if any light can be shed on this topic. The basic problem to be solved here is:  how to build a custom vmlinuz+initrd.img for Centos 5 kickstart with my own custom built kernel?

 I am not sure mkinitrd is the right tool for this purpose? If do, which are the modules I should include with ‘—preload’ options? And if there are any extra files/steps I should include/follow for the initrd.img file? Not sure how the stage2.img is loaded by kernel after initrd.img is loaded and run. Please help.

--Guolin

 

 

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