Re: Remote booting, take 2

Yann E. MORIN wrote:

> Once upon a time (on Friday 30 April 2004 21:46), Chris Lingard wrote :
>  > > The question is : do I need ROOT_NFS as I'm using an initrd?
>  > This might not be applicable, but you are using 2.6.5, so it might help
>  > You do not need any root partition  There is a feature called
>  > initramfs that you can use.  2.6.5 needs a minor patch; but future
>  > kernels will be OK.
> [--SNIP--]
> 
> For now, I'm using initrd, so I guess I'm using initramfs. The idea I
> had so far was :
>  - get the kernel and an initrd,
>  - configure network,
>  - mount the directory to use as root to /nfs-root,
>  - pivot_root to /nfs-root (and have the old root mounted on /initrd)
>  - exec /sbin/init on the new root
>      -> I get rid of any file descriptor on the old initrd root,
>  - umount /initrd later on in the boot process,
>  - dispose of memory used by the ramdisk.
> 
> That looks very much like what you described. So my way was not totaly
> stupid! 
> 
>  > You could then nfs mount /lib, /usr or whatever; then once your
>  > setup is complete could do exec /sbin/init on the nfs mounted system
> 
> I didn't think on keeping the initrd as a permanent root, and solely
> mounting the needed tree. That's interesting as well!
>