[SOLVED] T460 not booting after adjustments to BIOS.

[Cameron.carter]

I have Slackware 15 installed on my Lenovo T460. It's specs are Intel i5, 8GB DDR4 RAM, SD8TB8U256G1001-3/256GB SSD. I upgraded my kernel and it caused startx to not work so I was only able to load the kernel and sign in but my laptop wpupd boot into the SSD and load Linux. I changed a few settings in the BIOS concerning enabling UEFI, legacy boot, secure boot and restored the defaults at the end of it all and I can not boot into the SSD or the USB I made a bootable Linux Mint ISO using unetbootin. I ran a quick diagnostic using Lenovo Diagnostic tool and it passed the basic test; I also tested the memory, motherboard and PCI options and found nothing wrong in that it passed every test. When I boot up the computer after after forcing the PC to shut down using the power button I also see a:
"PXE-61: Media test failure, check cable.
PXE-M05"

What can I do to boot into the SSD or USB and if not what can I do to find out what the problem is? This is so frustrating.

 

[alceryes]

You probably changed from legacy BIOS to UEFI (or vice versa). You need to switch this setting back to however it was when it was booting properly.

 

[Cameron.carter]

You probably changed from legacy BIOS to UEFI (or vice versa). You need to switch this setting back to however it was when it was booting properly.

Like i said I restored the factory settings of the bios first by using the option to restore it in the last tab of the BIOS menu and then by pressing f9 I believe (according to the menu options displayed) for each selection then sub section. I can still not boot into the OS. What options should I set the BIOS boot to, legacy or UEFI? MIND YOU I had a Linux kernel boot issues prior to meddling with the BIOS in that I upgraded the kernel and xorg had difficulty finding some init file and loading the kernel and bootloader elilo so this may also be a 'deep" operating system problem on the low level paradigms of OS architecture. How can I tell at least my OS or Laptop hardware it self is not broken by a process of elimination?

 

[alceryes]

Got it. You should set the BIOS boot to what it was before you changed anything. I thought the non-boot was caused by BIOS settings but it looks like you're going to need to repair the bootloader.

You need to get to where you can boot from a Linux Mint Live USB and run a boot repair.
You may want have a look around the Linux Mint forums too - https://forums.linuxmint.com/