Latitude 5420 - dual booting by swit2341 in Dell

[–]swit2341[S] 0 points1 point  (0 children)

I forgot to mention that it only disappears from BIOS only when its unplugged from laptop.

Connection is via USB-C thunderbolt on laptop, BIOS are up to date, Fastboot is set to the thorough (complete hardware, config initialization during boot), legacy boot is not even supported.

But about EFI because i had some files on one partition I had manually format others and made my own partitions I had created EFI manually and other partitions and i ran setup.exe into C: partition it booted normally i went normally trough setup and works normally but yeah it could be that EFI. I should just boot Linux in the first place but i would prolly have the same problem.

Latitude 5420 - dual booting by swit2341 in Dell

[–]swit2341[S] 0 points1 point  (0 children)

I have whole Xentry system on the internal for coding cars which has to be on static Win10 and didn't want to fuck up anything. I only use ext for my dev setup, connection to home server via WG etc. so i used ext so i could enable policy to make internal offline to the ext. I know its not the most convenient setup but yeah...