Good wishes to everybody!
I have no idea: what does kernel suffix mean?
After OS installation and supplementary product installation I am discovering a set of boot alternatives and corresponding kernel versions. They have different suffixes: -pae, -default, -trace.
It appears that kernel *-pae is booting normally,
while kernel *-default hungs in the middle of booting process being unable to discover certain disk or partition.
Some products also have similar suffixes: -pae, -trace,
-default. What does it mean? Shall I keep kernels that do not boot?
Thank everybody for the assistance.