Going through the setup as normal everything seems to work, up until towards the end of the setup, where it ends with an error "executing grub-install /dev/sda failed. this is a fatal error." to which it tells me to reboot, and upon booting it brings me into a command line interface for what I assume is grub. I'm really not an expert on this and after looking around a bit I'm at a loss. The initial plan was for me to dual boot MATE and Windows 10, but after first encountering the error, i did a complete clean install, and that didn't work either. I tried boot repair, I made sure I was booting into UEFI mode, nothing works, it always ends with "executing grub-install /dev/sda failed ." I'm at a complete loss. I appreciate as much help as I can get, thank you in advance.
One suggestion is to boot from a live usb, then do the following:
lsblk -f (sample output)
NAME FSTYPE LABEL UUID MOUNTPOINT
sda
├─sda1 vfat AF36-E526 /boot/efi
└─sda2 ext4 778636d8-22cc-476f-b801-ff9f5ac9ef5d /
we will use sda2 (mountpoint /)
sudo mount /dev/sda2 /mnt (where sdaX is the / partition of your disk)
for i in /dev /proc /sys /run; do sudo mount -B $i /mnt$i; done
sudo chroot /mnt
mount /boot/efi
grub-install /dev/sda
update-grub
if successful, reboot and hopefully your system will come up.
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