October 1, 20223 yr My unraid motherboard recently died. It was a 10 year old LGA1155 board so the only replacement boards I could find with enough PCIe slots were used, expensive and often both. Instead of spending a bunch of money on an old fossil I decided to modernize and got a new 12th gen Intel CPU and ASUS Z690 motherboard. The motherboard is a little overkill but had the number of slots needed for my HBA cards and included 2.5G networking, which let me remove my existing NIC. Unfortunately, I had no luck when booting the new board with my existing unraid flash drive. I could see the drive in the boot menu and in BIOS, but after selecting it the computer would quickly return to the BIOS screen, without an error message or anything. I tried my current unraid drive and one created from a recent backup and they both failed to boot. I then tried an unraid drive made with a fresh download plus a windows install drive and both worked fine. What could it be that is preventing the existing unraid drive from booting? I would definitely prefer to use my existing drive rather than start from scratch. I have no idea what could be preventing my existing drives from booting when the fresh one works. Suggestions or ideas will be much appreciated.
October 1, 20223 yr Community Expert Solution If you have a folder named "EFI-" on the drive rename it to "EFI". Modern boards won't have legacy boot enabled by default anymore. Alternatively you can enable CSM in the BIOS. Edited October 1, 20223 yr by Kilrah
October 2, 20223 yr Author Thanks, I found the a similar comment about "EFI-" on linuxserver.tips shortly after posting here. Removing the hyphen did allow me to boot with both my current and backup-created flash drives. Great to get over that hump, but that was just on a tabletop. Waiting for new M.2 drives to arrive before I put everything back together and see if the storage array is still intact. I also tried the CSM option but could not enable it on my motherboard. Searching that issue led to articles on the ASUS support site saying CSM was disabled or restricted in intel 10th gen and 500 series boards. I say restricted because one of their proposed solutions was to use a discrete GPU instead of the iGPU and it would work. I guess in certain cases it is available but in mine it was not. I didn't find a specific reference to 12th gen and 600 series chipsets but it seems likely it was not added back.
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