It's normal that edubuntu-artwork does not trigger update-initramfs, it has to be done from removal the dependency edubuntu-artwork-usplash.
I compared usplash-theme-ubuntu.postrm and edubuntu-artwork-usplash.prerm (they have to do the same) but I see a great difference: the first calls 'update-initramfs -u',- the second not; it only calls update-alternatives, thus not updating the initial ramdisk.
I suggest to change edubuntu-artwork-usplash.prerm with the patch attached to this comment, if it is what needed....
It's normal that edubuntu-artwork does not trigger update-initramfs, it has to be done from removal the dependency edubuntu- artwork- usplash.
I compared usplash- theme-ubuntu. postrm and edubuntu- artwork- usplash. prerm (they have to do the same) but I see a great difference: the first calls 'update-initramfs -u',- the second not; it only calls update- alternatives, thus not updating the initial ramdisk.
I suggest to change edubuntu- artwork- usplash. prerm with the patch attached to this comment, if it is what needed....