Erich Focht wrote:
> --- init (Revision 4041)
> +++ init (Arbeitskopie)
> @@ -6,11 +6,16 @@
>
> echo "initramfs detected: init called"
>
> +delete_rootfs_files() {
> + sleep 10
> + rm -rf /
> +}
> +
> mkdir -p /new_root || shellout
> mount tmpfs /new_root -t tmpfs $tmpfs_opts || shellout
> cd / || shellout
> cp -a `/bin/ls | grep -v new_root` /new_root/ || shellout
> cd /new_root || shellout
> mkdir -p old_root || shellout
> -
> +delete_rootfs_files >/dev/null </dev/null 2>&1 &
> mount --move . / && exec chroot . /linuxrc
>
wow! This resolves the memory consumption problem! but there's still the
compatibility issue... anyway after a bit of googling I came across
switch_root that *does* it in a very clean way (honestly I didn't know
this command):
http://busybox.net/cgi-bin/viewcvs.cgi/trunk/busybox/util-linux/switch_root.c?rev=18493&view=auto
It's also in busybox 1.1.1 and it seems to work too. So, what do you
think about the following patch?
-Andrea
Index: initrd_source/skel/init
===================================================================
--- initrd_source/skel/init (revision 4042)
+++ initrd_source/skel/init (working copy)
@@ -6,16 +6,14 @@
echo "initramfs detected: init called"
-delete_rootfs_files() {
- sleep 10
- rm -rf /
-}
-
mkdir -p /new_root || shellout
mount tmpfs /new_root -t tmpfs $tmpfs_opts || shellout
cd / || shellout
cp -a `/bin/ls | grep -v new_root` /new_root/ || shellout
cd /new_root || shellout
mkdir -p old_root || shellout
-delete_rootfs_files >/dev/null </dev/null 2>&1 &
-mount --move . / && exec chroot . /linuxrc
+
+exec switch_root . /linuxrc
+
+echo "error: switch_root failed."
+shellout
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