Prelink and rkhunter

FizzyWidget · Posted: Fri Feb 03, 2012 10:17 pm Post subject: Prelink and rkhunter

If i have prelink enabled, or in this case if i have the file /etc/prelink.cache , rkhunter says that nearly all files in /bin /usr/bin and usr/sbin are the wrong file size and need checking, I have ran rkhunter --propupd , but it still says the files are bad, if i delete /etc/prelink.cach and run rkhunter --propupd and then run rkhunter it says the files are okay

Other than reading that prelinking can give you a performance boost should i use it on my system and just use this method to use rkhunter or remove prelinking?
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I know 43 ways to kill with a SKITTLE, so taste my rainbow bitch.

BigBox37 · n00b Joined: 25 Dec 2010 Posts: 23

ultraslinky · Posted: Fri Feb 10, 2012 10:24 am Post subject:

BigBox37, I'd like to try that e4rat you linked

however, is there a way to use it with Lilo instead of Grub? I wouldn't know where to put "init=/usr/sbin/e4rat-collect" with Lilo. Should i use "append="?

Like now, in Lilo i have my kernel and after that i have: append="pcie_aspm=force".
Would that become: append="pcie_aspm=force init=/sbin/e4rat-collect" ?

Thanks!

ultraslinky · Posted: Fri Feb 10, 2012 10:30 am Post subject:

actually i just did that and it worked

BigBox37 · n00b Joined: 25 Dec 2010 Posts: 23

ultraslinky · Posted: Sun Feb 12, 2012 4:00 pm Post subject:

Actually.... e4rat-collect worked like a charm, i have my log file and inside it are lots of files i can recognize from the startup sequence

But after i switched to runlevel 1, and i ran e4rat-prealloc, it just complained that "no optimization was possible", without telling me why. Maybe it's because i only have 10% disk space left? Do i need more than that?

EDIT: actually, i could rerun the command with the ">" operator so i can get the exact output on a text file. then i could post it here!

ultraslinky · Posted: Sun Feb 12, 2012 4:18 pm Post subject:

Wowza..... Well this is very nice

it makes loading my XFCE4.8 desktop take only 1,5 seconds total! but the problem is, it takes far more to actually load itself, and it makes the services start slower... I don't know, maybe my hard disk is a bottleneck here? Crappy 5400 rpm laptop disk. Anyhow, it seems very promising!

BigBox37 · n00b Joined: 25 Dec 2010 Posts: 23

ultraslinky · Posted: Mon Feb 13, 2012 8:19 pm Post subject:

Wow, thanks BigBox37 for the clear instructions

I think you forgot to switch to runlevel 1, like described in the wiki, but maybe it isn't necessary after all?

I'm going to bed now so I will try this tomorrow morning. Yeah i do notice about my Gentoo box that first time actions, like first time opening start menu, first time opening Chromium, they are slow. So i will do all those actions in e4rat's 240 seconds and see the results. Bis morgen

BigBox37 · n00b Joined: 25 Dec 2010 Posts: 23