Thanks Raajeev, I understand the reason behind using UEFI. In this case, it turns out we were fighting “dueling DHCP” servers. The boot behavior was not consistent due to a rogue DHCP service more frequently answering the broadcasts from the client; since it didn’t have a config for those nodes, it didn’t do anything (fortunately, it was configured to only PXE boot nodes it specifically knew about!).
That problem has been resolved, and the UEFI boot mode works fine with NIC PXE boot in the environment. ~~Shane On 11/20/13, 11:09 AM, "raajeev_kalyanara...@dell.com<mailto:raajeev_kalyanara...@dell.com>" <raajeev_kalyanara...@dell.com<mailto:raajeev_kalyanara...@dell.com>> wrote: Dell - Internal Use - Confidential Hello Shane, On R series systems the intent is to set the systems up in UEFI boot mode because large RAID volumes can be created and there is no code to delimit the size of the volume to 2TB or less . Could you please specify the system model, the BIOS / RAID configuration you selected (in the drop downs when you allocated the node) and also get me a copy of the log file for the node (usually under /install-logs/<node-name>-update.log on the admin), so I can take a look. Thanks! Raajeev From: crowbar-bounces On Behalf Of Shane Gibson Sent: Saturday, November 16, 2013 6:35 PM To: crowbar Subject: [Crowbar] crowbar switching nodes to UEFI boot mode ? It would appear that in 1.6.1, after I enlist/enroll (sledgehammer) a node, the subsequent reboot it switched from BIOS boot mode to UEFI boot mode. This is driving me nutz … since UEFI boot mode isn’t PXE booting correctly. The nodes all get hung up with “F1 to retry reboot …”. I have to reboot the node in to System BIOS and change from UEFI to BIOS - then things continue on. I’m using a stock 1.6.1 (mesa build 3860) config. Is there something I’m missing in terms of specifying or expecting a proper BIOS boot mode? ~~shane
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