I installed Ubuntu on my laptop. But grub can't install due to multiple mount errors. I tried to install it from a LiveUSB, but sudo chroot /mnt fails with
#grub-install /dev/sda
Installing for x86_64 efi platform
grub-install: error: cannot find EFI directory
Please help me to solve this immediately

sudo blkid /dev/sda | grep PTTYPEthen click [edit] and paste the result into your question. Don't use Add Comment because you lose your formatting on what you reply with in a Comment; instead, use [edit]. – K7AAY Dec 13 '19 at 22:52ls -al / | grep mntif the folder realy is not present. – nobody Dec 14 '19 at 17:59