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

[John Summerfield <debian herakles homelinux org>]

Guolin Cheng wrote:
> 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 redhat com
> [mailto:kickstart-list-bounces redhat com] On Behalf Of Guolin Cheng
> Sent: Wednesday, May 30, 2007 4:45 PM
> To: centos centos org; 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.


Last time I created an initrd for EL, I hacked on an existing one by 
ungzipping it, then unpacking with cpio.

To put it back together, I used cpio and didn't bother compressing it.

Worked fine, should work here. I forget what I was kickstarting, may 
well have been an EL5 beta.




--

Cheers
John

-- spambait
1aaaaaaa coco merseine nu  Z1aaaaaaa coco merseine nu

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