I have SLED12 SP1 on HP ProBook 4515s. Since kernel update 3.12.51-52.31
my laptop can't boot up with new kernel, it stop after "Loading initial
ramdisk..." message. Booting with kernel 3.12.48-52.27 is fine, I am use
it by choice advanced options in grub. The other day I upgrade SLED
installation to SP1 in the hope of fix this issue, but on kernel
3.12.51-60.20 the same thing and I steel have to use 3.12.48-52.27.
How to fixing that?