Thanks a lot for your reply, dinolinux!
I thought that probably was the case.
Unfortunately, now I'm getting this weird error at boot:
Uncompressing Linux... Ok, booting the kernel
Red Hat nash version 4.2.15 starting
ERROR opening /dev/console!!!!: 20
error dup'2ing fd of 0 to 0
error dup'2ing fd of 0 to 1
error dup'2ing fd of 0 to 2
/bin/sh: ro: No such file or directory
kernel panic - not syncing: Attempted to kill init!
for full info)
Is this because I changed the swap?