I'm not at the point of crying and yelling but I'm real close. I've have been up for over 24hrs trying to fix my server and I can't. On Wednesday 8/21 my server was working perfectly and I had just finished watching a movie. I checked into the server and saw that there was as OS update to 6.12.12 from whatever was the last version. It downloaded fine and when it went to reboot.....nothing. It would not even post; no boot up sequence of any kind. The motherboard was showing a ram error, so I changed the ram and still nothing. After going through trouble shooting the hardware with no luck. By now I've change some the files on the flash drive and still can't get past step one, turn on. I then took another fully working pc and pulled out the motherboard and everything on it and transferred it to my server (motherboard, ram, cpu, nvme). I tried firing it up but again nothing but remembering I had tampered with the flash drive files I downloaded the usb creator and put a fresh copy of unraid on it and tried it again; this time it worked but now a brand new server. I did not start up the array or erase any of the drives hoping that I could still preserve the 110tb of data that has taken years to accumulate. I thought I saved a backup in my iCloud but couldn't find it. As I was getting ready to consult the forums for help I ran across Unraid connect and thought I would sign up so that I would definitely have a back up if needed in the future; only to find out that I had already signed up and there was a backup copy of my flash drives saved on Wednesday. I was thinking that all may not be lost. I copied the files onto the flash drive and tried again, to come up with nothing again. After wrestling with that for several hours I realized that the backup copy was for 6.12.12 (the flawed update) that must have backed up after the update. So I went back and used the usb creator to put another fresh copy of unraid and it to will not post. So I now have 2 complete motherboard assembl that won't work and have probably lost alll of my data., outside of my universal plea for help I do have a couple of  immediate questions: How can Unraid cause a computer not to boot at all; (I've cleared the CMOS). Unraid connect only shows the last flawed backup, is there a way to get a backup saved before that one! Lastly any suggestions on how and if this can be fixed. 28hours I'm going to sleep....Thank you in advance!

I think the key point is yon need to confirm it boot in legacy or UEFI. Only UEFI boot not need extra step to make USB "bootable", so UEFI were recommend, but the extra step to make legacy USB bootable also easy, insert it to a PC and execute "make_bootable.bat" ( something like that) only.

 

If you can provide monitor display dump, we will know more about the problem.

Edited August 25, 20241 yr by Vr2Io

All you need is the config folder from your flash backup to get a new install of whatever version going again with all of your configuration.

No, the computer will not power up. Even if i take the flash drive out. The fans spinfor about 5 sec and stop. There is nothing showing on the display. And it did that to 2 completely separate setups. It booted up when erased my flash drive completely and put the 6.12.13 update on it but once the backup that i used from 6.12.12 even if i erase and put the latest on it (6.12.13) it will not power up. 

That's a hardware issue, nothing to do with the OS, try resetting the CMOS and/or using a different PSU