Hello @INeedMana@piefed.zip! I have decided to not use this OS any longer. Since the EFI entry works, I tried it, and it’s not what I’m looking for. Thank you for all the help, tho.

Game modding + Discord have brewed many friendships

Actually, here’s the grub menu from MX, where pmOS entry was auto-generated.

EDIT: corrected accidental duplication when pasting the config

Ah, no problem! So there is nothing related to grub at all in pmOS_boot… However the system is boot-able through UEFI entries! I don’t know why I didn’t try that earlier.

My workstation’s BIOS is all fancy and let’s you add custom entries, but it was easier to use MX’s UEFI manager. I simply added a new entry to pmOS’s BOOTX64.EFI. I still would like to boot it through my GRUB.

Also thanks for the piece of info and all the interest in helping me so far :)

1. 

2. Bellow all my entries there lies:

• postmarketOS v26 (can’t remember full name)
• advanced settings for postmarketOS v26
  • postmarketOS v26
  • postmarketOS v26 (yes it’s 2 identical in this menu)

And again, I will mention that these entries were automatically generated by # update-grub.

3. Nothing else to the left side of partition 7 & 8 (pmOS boot & root) matters, except EFI, since well it’s the EFI partition. I want to boot pmOS through GRUB. The other boot partition is for my main OS.

thanks

MX is also solid for older Nvidia cards. The installer tool picks patched drivers for you in case they are needed. This is mostly up to preference, I don’t like CachyOS as much as I don’t like the rolling release model.