Very good Thomas, it is a "baby step" forward.
On 03/15/2013 06:08 PM, Thomas Neumann wrote:
... On top of that I provided a link to the
related bug report (also to the LVM bug report) *phew*
:-)
Ah. Forget about grub for now. Back then I assumed you were having trouble
with booting / debugging an installed fai client. At this stage grub has no
relevance to your problems. You're actually still in pre-FAI / initrd
territory.
Well two issues simultaneously can be a bit of challenge?
First the black screen -- at this moment I expect to find a mis-match
between my fai-client hardware and the software used to build the the
client. I'm confident the display is not the source -- I have done
substitution without success. That leaves the internal hardware -- and
I can't do substitution there. We will see how this gets resolved.
Second is grub -- at this moment when fai finishes the build and reboots
[FYI this requires maybe 6 min], the fai-client seems to hang at reading
MBR from hard drive. Clearly fai is not doing a successful build, and
the black screen is simply a nuisance at figuring out what went wrong.
No -- there is not a client log on the server /var/log/fai directory
either.
I'm a bit stumped on why you are getting a black screen (now/again/at all).
The only thing I can think of is that the initrd/dracut is finding a lvm-
partition on the client's hard disc and trying to activate that partition.
This wouldn't be so bad, if dracut would then still proceed to mount the NFS
root volume. Alas it doesn't and refuses to proceed any further.
Well sorry to have stumped you. There is one fact you might have
missed? -- after the black screen fai continues to build for another
4-1/2 minutes before the fai-client automatically re-boots. NFS
continues to deliver server content to the client that totals 79k
packets. The client hard drive remains active until reboot -- just like
a normal build. Even though the result is not 100% correct, fai is
building something in the 5:50 min between power-on and re-boot.
I need to drag out a rescue OS to look inside fai-client to help with
the next step?
Perhaps when I see what has been built it will make more sense.
bye thomas
Cheers
Geo
