On 02/16/2017 10:07 PM, ~Stack~ wrote: > Greetings, > > I'm going to keep this "short" because I've just had 6hrs of things I've > tried that didn't work. It would take to long to list them all. :-) > > I have a bunch of new SuperMicro servers. Installed 7.3 on it. Reboot > and it hangs at: > "Probing EDD (edd=off to disable)...ok" > > And by hangs, I mean there is NO response out of anything. No Caps Lock > light on keyboard, nothing. > > However, if I let it sit long enough it will boot (once one sat for an > hour before it continued on, most of the time it is closer to 30-40 > minutes). > > If I boot into rescue kernel, it instantly boots. Every time. This is so > puzzling to me. > > If I wait and let it boot, then check 'systemd-analyze' it says my boot > time is sub 6 seconds (fancy new SSD's too!) and blame tells me that the > longest section to boot was 3 seconds on the networking. Well, that is > worthless because it just SAT THERE FOR THIRTY MINUTES!!! It obviously > starts recording time after the hang. > > No matter the amount of logging I do or what debug mode I put it in, it > prints "Probing EDD (edd=off to disable)...ok" then hangs, and > EVERYTHING after that has nothing to do whatsoever with the reason for > the hang. > > I have disabled just about everything I can think of from various online > suggestions. I removed the quiet flag (duh) and I've turned off > intel_pthread's and power states and ACPI and nomodeset and loglevel=7 > and blah blah blah blah. Seriously, my string of crap tacked on to the > grub prompt is getting rather absurd. (I boot into recovery, modify > /etc/default/grub and run grub2-mkconfig to set the grub prompt; I > checked and this is working to set the grub parameters). > > Still same result. Recovery kernel boots, the other kernel hangs. > > Fine. I will install a kernel from El Repo! I'll get a fancy new 4 kernel! > > Yeah. That doesn't do squat either. > > Want to know the thing most infuriating? A single box in the whole > batch, shows this problem once every 10 boots or so. I can't tell that > there is a stinking thing different. BIOS is exactly the same, configs, > install, packages, everything. *shrug* > > Are there *any* suggestions at all as to how I can figure out what it is > hanging on? Is there a list of things after EDD that I can just start > disabling till I get a different result? > > Thoughts? > > Thanks! > ~Stack~ > Can you tell use what motherboard and drives you have? I've used several models from SuperMicro (presently using X11SAE) without problems. I am careful about my BIOS options. For example, I ensure the disk access mode is set AHCI and not RAID. It might be worth poking around there to see if anything makes a difference. -Mark