I know the only possible ring levels are 0 , 1, 2,3
corresponding to the 2bit Privilege field in the global descriptor table.
I am curious in linux why we have runlevels 0 - 6.
Are the runlevels not the same as ring levels ?
when I issue runlevel at the command line it gives me
That means I am in ring 2 or the third ring from the bottom up.
Correct me if I am wrong?