upgrading kernel issues question

[rokytnji]

Only advise I have. Keep a good working one as backup. Some of the kernels I tested for Valtam did not support
my card reader on a certain laptop (Compaq CQ).

These things happen though depending on hard ware. I have experience testing kernels for developers and
even on this little netbook I am posting from. I had issues with a 3.17 kernel and the internal usb wifi chip
this netbook uses.

But because I keep a good backup working kernel image and header. I can boot into that and uninstall the one
I installed giving problems. So do not uninstall any good working kernels till you are positively sure the new one
is working out OK for you on yiour hardware.