klibc - Aug 2005 - lvm initrd -> initramfs

I converted my lvm root initrd to an initramfs by putting glibc, lvm, 
pivot_root, my linuxrc, etc. in my initramfs source file. I use ash 
compiled against klibc to run my linuxrc

Unfortunately -


pivot_root . initrd


- complains -


pivot_root: Invalid argument


I suspect this may be because you can't pivot_root using a cpio 
initramfs root?

If so, what should I do instead? Should I still mount my lvm root 
partition as I do currently? Should I call kinit?

How do I continue to boot, using my freshly mounted lvm partition as 
root?

Many thanks! I'm excited to get started using initramfs!

Jack

-------------- next part --------------
A non-text attachment was scrubbed...
Name: linuxrc
Type: application/octet-stream
Size: 743 bytes
Desc: not available
Url :
http://www.zytor.com/pipermail/klibc/attachments/20050826/1be1800b/linuxrc-0001.obj

On Fri, 2005-08-26 at 11:32 -0700, ms419@freezone.co.uk wrote:

Hi,
> I converted my lvm root initrd to an initramfs by putting glibc, lvm, 
> pivot_root, my linuxrc, etc. in my initramfs source file. I use ash 
> compiled against klibc to run my linuxrc
> 
> Unfortunately -
> 
> 
> pivot_root . initrd
> 
> 
> - complains -
> 
> 
> pivot_root: Invalid argument
> 
> 
> I suspect this may be because you can't pivot_root using a cpio 
> initramfs root?
> 
> If so, what should I do instead? Should I still mount my lvm root 
> partition as I do currently? Should I call kinit?
> 
I just use run-init from klibc:

---- snip -----
# Other setup and all else before I can mount root before
# this line ...

# Mount /root
mount -t ext3 /dev/nsw1p2 /rootfs

# The rc-scripts will take care of this
umount /sys

init="/sbin/init"

for x in $(cat /proc/cmdline)
do
        case "${x}" in
        init=*)
                # Set $init to whatever the user specified ...
                eval ${x}
                ;;
        esac
done

# The rc-scripts will take care of this
umount /proc

# Right, pivot and give control to real init
exec run-init /rootfs "${init}" "$@"
-----

Something like above over here.


Regards,

-- 
Martin Schlemmer

-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: This is a digitally signed message part
Url :
http://www.zytor.com/pipermail/klibc/attachments/20050826/04598aa6/attachment.bin