What is this error about:

fsck from util-linus-ng 2.16
/dev/sda2: clean BLABLABLA files BLABLABLA blocks
fsck from util-linux-ng 2.16
init: udevtrigger main process (476) terminated with status 1
init: udevtrigger post-stop process (476) terminated with status 1
init: udevmonitor main process (473) killed by term signal
/dev/sda4: recovering journal i think this is my "swap" partition
/dev/sda4: clean BLABLA BLA files, BLABLA BLA blocks
init: networking main process (500) terminated with status 1

And how can I fix it?