I've got a problem with a CentOS 7 dedicated server. I've had it for years, and never had any problems with it until now.
I did a yum update the other day, and then rebooted the machine, and it never came back up.
I'm using an IPMI session now (it's an HP ProLiant LG160 Gen8 box), and after going through all of the normal POST checks it gives me 4 boot options:
CentOS Linux (3.10.0.1062.18.1.el7.x86_64) 7 (Core)
CentOS Linux (3.10.0.1062.12.1.el7.x86_64) 7 (Core)
CentOS Linux 7 Rescue fc47167... [too lazy to type]
CentOS Linux (0-rescue-fc47167...) 7 (Core)
If I select the top option it goes to a black screen with a small smiley face icon top left, and a flashing cursor after it.
If instead I select the second option, I get the same but a few lines down in the center of the screen it says "c4".
Both screens seem to wait indefinitely for me to press a key, and then the screen clears and it goes back to
Press "F9" key for ROM-Based Setup Utility
Press "F10" key for Intelligent Provisioning
Press "F11" key for Default Boot Override Options
Press "F12" key for Network Boot
I press none of them and it clears again, and starts with
Attempting Boot from NIC
etc. But this time it appears to hang indefinitely rather than coming up with the four boot options.
I get left with this final line:
PXELINUX 6.03 PXE 2014-10-06 Copyright (C) 1994-2014 H. Peterr Anvin et al boot: _
<- flashing cursor
Any idea what's gone wrong? Is it a virus? Is it fixable? What's my next step?
Thanks!