HP Elitebook boot issues

HeroRareheart · April 21, 2022

I recently picked up an HP Elitebook 8560w. A few days ago I configured the BIOS to my liking and installed Ubuntu 21.10 without issue. Ubuntu 22.04 dropped today so I decided to do a clean install. I remembered from the last time I did this that the USB installer said something about text mode being disabled so I tweak to the BIOS settings in order to enable it for this install. According to the installer it installed correctly and I restarted the system but the laptop now says there's no operating system on the disk. I tried clean installing 21.10 again and had the same issue. I decided to reset the BIOS but when I press the keys to get into the BIOS it would just take me to a Diagnostics menu that everytime I left the computer would restart. Running all of the Diagnostics and then exiting doesn't seem to cause any different behavior. I removed the battery, power cable, and CMOS battery to reset the CMOS and that let me get back into the BIOS after. Because I kept tweaking settings and this kept happening so I had to do it a few times and I've noticed if I just exit the BIOS after a CMOS reset I have the same issue with the infinite Diagnostics page. no combination of BIOS settings seems to allow me to boot to the operating system after either version of Ubuntu is installed to the drive. At this point I'm lost and I've decided to put down the laptop and return to it later but would like to see if anyone has any tips before I try again. My gut says it's got something to do with the TPM but I have little idea how TPM works.

Edit: I should probably add that I remade my installation media in the middle of this just in case it was that