Re: [gentoo-user] Making a init thingy. Step two I guess.

[Dale <rdalek1967@gmail.com>]

Mark Knecht wrote:
> While I was out walking my dog I sort of remembered that there are
> just a few apps I had to build static, or at least that I build
> static. One, I think was grub. The first and only time I did it I had
> to do it 3 or 4 times before I got everything I needed working
> correctly. This page which is like the first one Google comes up with
> talks about that stuff, although you have to sort of dig it out and
> read between the lines.
>
> http://en.gentoo-wiki.com/wiki/Initramfs
>
> And, I think with the ldd command as long as you include the libraries
> ldd points at in your equivalent /lib directory within the initramfs
> then that works for most apps and keeps the initramfs smaller.
>
> HTH,
> Mark
>
>

I think there are only a few that has that flag, at least that I would 
put in the init thingy anyway.  Maybe this is something that the devs 
will work on if it can be done.  May be a big if there.

That is the guide I am trying to go by but I think I am missing 
something.  This is the script they have posted:

#!/bin/busybox sh

# Mount the /proc and /sys filesystems.
mount -t proc none /proc
mount -t sysfs none /sys

# Do your stuff here.
echo "This script mounts rootfs and boots it up, nothing more!"

# Mount the root filesystem.
mount -o ro /dev/sda1 /mnt/root

# Clean up.
umount /proc
umount /sys

# Boot the real thing.
exec switch_root /mnt/root /sbin/init

That doesn't really make much sense to me.  First it mounts the stuff then umounts it right after that.  Huh?  Is the relevant part the "mount -o ro /dev/sda1 /mnt/root" ?  Then the exec switch_root part after that?  The rest seems to cancel each other out.

Looking forward to that light bulb moment here.  ;-)

Dale

:-)  :-)