On Thu, Jun 13, 2013 at 9:05 AM, Nikos Chantziaras <rea...@gmail.com> wrote: > On 13/06/13 16:47, Frank Steinmetzger wrote: >> >> recently my netbook got the habit of freezing sporadically. [...] >> [...] >> >> I ran a memtest a few months back and stopped it after 8 successful >> passes. I might try that again as soon as I find out how¹, but I'd >> think that a corrupt memory would cause something different than a full >> freeze. > > > It usually manifests in segfaults that seem to come at random. But it's > still worth a shot. It's very easy. Emerge "sys-apps/memtest86+" and add > this grub entry: > > title=Memtest86+ > root (hd0,0) > kernel /boot/memtest86plus/memtest.bin > > (Adapt the "hd0,0" of course to be the same disk as the one you're using to > boot your kernel.) > > That's it. Now your boot menu will include a "Memtest86+" option. This is > for grub 1 though. If you migrated to grub 2 by now, then I don't know how > that boot entry would look like. I suspect it will be some 300-line > monstrosity or something :-|
Actually it is -- dare I say it -- even more simple in grub2 :) menuentry "Memtest86+ 4.20" { linux16 /memtest86plus/memtest.bin } That's from my grub.cfg... I don't use the grub auto-configuration tools. I just made a manual grub.cfg like in the grub1 days. It is quite similar to the old grub syntax, but more can do more stuff. BTW there is a new version 5.00 of memtest86+ which is on rc1 release right now, it supports multi-core processors (and tests/uses them), shows system temperature while testing, is much faster than the old one, and has a few new tests. There is a link to it on the memtest forums.