On Sat, 19 May 2007, Bart Schaefer wrote: > Date: Sat, 19 May 2007 11:55:11 -0700 > From: Bart Schaefer <barton.schaefer at gmail.com> > Reply-To: CentOS mailing list <centos at centos.org> > To: CentOS mailing list <centos at centos.org> > Subject: Re: [CentOS] Now I can't shutdown [was: Screen blanks afteral p > (Centos 5)] > > On 5/19/07, William L. Maltby <CentOS4Bill at triad.rr.com> wrote: >> On Sat, 2007-05-19 at 17:54 +0300, Itay wrote: >> > 4 A couple of strange things >> > + I have found out that the default run level was set to 3. >> > When, as a root I tried 'telinit 5', the machine responded with a >> > blank screen. I had to reset. >> >> Have you tried a <CTRL>-<ALT>-<F1> when this happens? Since desktop is >> being started on tty7, if it fails and seems blank, maybe switching to >> virtual console 1 will work, if the machine is still alive. > > This symptom actually sounds exactly like what has been happening on > my laptop when no networking is available at boot time. It could be > unrelated to the panic problems. > >> > + Rebooting the machine was accompanied with messages regarding >> > ntp/clock skew. Later, I have found out that I have lost the >> > network connection, probably while playing with the >> > installation, so this probably explains the clock skew. >> > Am not sure if this has any relevance. > > It's probably not relevant to the panics but it could be producing > other symptoms that are confusing the diagnosis. Try to get it fixed > again if you can. > > Bill's advice (e.g. about checking hardware connections) is good. I am memtest'ing the machine again for the night. We'll check the connections first thing tomorrow. And will follow with an attempt to boot to centos 5 keeping close watch on the network. -- Itay Furman <centos at nospammail.net> --