<snip>
...kinda. In some of my tests, plymouth is getting installed *after*
kernel, which means it's not being included in the initrd.
If you want to be 100% sure:
1) make sure plymouth-plugin-spinfinity is installed
This is the default plugin, and it pulls in the rest of plymouth.
2) recreate your initrd
kv=$(uname -r)
mv /boot/initrd-$kv.img /boot/initrd-$kv.img.good
mkinitrd /boot/initrd-$kv.img $kv
3) make sure you're getting a fb device at boot
a) add "vga=0x317" (or similar) to the kernel commandline, or
b) boot from EFI, or
c) boot on a ppc (with some hardware)
4) reboot!
<snip>
-w