Recovering forensic data from a failed boot

[Kernel Guardian]

Maybe could help to boot into runlevel 3, and turn on debug on in systemd.
Or try to boot into single user.
On Jan 7, 2012 11:02 PM, "Joe Zeff" <joe at zeff.us> wrote:

> As I may have mentioned before, my laptop runs F16 but will only boot
> properly from my last F14 kernel.  All attempts to boot from a 3.X kernel
> fail before gdm starts.  Are there any logs that survive after I reboot
> into the old 2.X kernel so that I can see just what's happening?  I presume
> that some of the data will be in /var/log/messages, but is there anything
> else?  Is there a way to be sure that a copy of boot.log is kept, or if it
> already is, where is it?  So far, just reporting on the error messages I
> see on the screen hasn't led to any suggestions how to correct whatever's
> wrong, so I'm hoping there's a way to get more data.
> --
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