Bug#338405: another patch for busybox support

[maximilian attems <maks@sternwelten.at>]

On Sat, 02 Dec 2006, Russell Coker wrote:

> The following will significantly reduce the size of an initramfs when busybox 
> is used while also enabling all busybox commands (handy if you have an option 
> to run a shell from the initramfs for recovery).  In spite of what maks 
> thinks, the busybox option is still there, so it should be made to work well.
> 
> --- mkinitramfs.orig    2006-12-02 15:42:16.000000000 +1100
> +++ mkinitramfs 2006-12-02 17:25:38.000000000 +1100
> @@ -228,7 +228,12 @@
>  else
>         rm -f ${DESTDIR}/bin/sh
>         copy_exec ${BUSYBOXDIR}/busybox /bin/busybox
> -       ln -s ${BUSYBOXDIR}/busybox ${DESTDIR}/bin/sh
> +       rm ${DESTDIR}/bin/busybox
> +       cp ${BUSYBOXDIR}/busybox ${DESTDIR}/bin/busybox
> +       for n in `busybox | tail -19 | tr , \\n | sed -e "s/ \|\t//"|grep .` ; 
> do
> +               ln -f /bin/busybox ${DESTDIR}/bin/$n
> +       done
> +       ln -f /bin/busybox ${DESTDIR}/bin/sh
>  fi
> 
>  # Modutils

remodified aboves busybox cmd listing into:
+       for cmd in `busybox | sed -n '/functions:$/,$p' \
+               | sed  -e 's/[[:space:]]*//g; s/,$//; s/,/\n/g; /busybox/d'`; do

nack,
this assumes that the initramfs will created on the same fs
than the / is on, that assumption does not hold.

so for a small initramfs without hacking your best bet is to set
BUSYBOX=n
and have no lvm2 or mdadm around.

-- 
maks