attached is a zip file containing my complete backupmenu folder
I had to copy these files to the MyDocs partition first, so you will have to set Backupmenu, BackupmenuLauncher, tar to be executable again.

please try these.

I am using a modified multiboot, but that has nothing to do with it imo, as multiboot is executed when /sbin/preinit is executed.

*I came across a similar issue while testing, when I did the following :
I added the lines responsible for launching maemo to the bottom of BackupmenuLauncher, and I added an option to Backupmenu and just used exit there.
this is wrong and leads to killing init and kernel panic.
is that what you did ?

the correct thing is to add nothing to Launcher, and add the lines under an option in Backupmenu.

also please note that when you continue booting maemo, and if you have boot menu, and don't have a list appear when boot menu is launched, then backup menu will be launched again unless you partially close the keypad before writing 'x' to exit backupmenu

[Edit] Sorry forgot to actually click upload! fixed .