robust compass
Title: LMDE 7 installed but no UEFI boot entry — need help
Hi everyone — I installed LMDE 7 to a PC401 NVMe SK hynix 256GB on a Dell Latitude 5580. Installer finished with no errors, I formatted the disk to GPT, and the drive shows Free Space / unallocated after formatting. However the machine still boots the live USB and the BIOS/F12 menu doesn’t show an LMDE or NVMe boot entry.
System details:
- Laptop: Dell Latitude 5580
- Disk: PC401 NVMe SK hynix 256GB (/dev/nvme0n1)
- Boot mode: UEFI; Secure Boot: ON
- Installed from a Linux Mint live USB (LMDE 7)
Commands I can paste here if you want to inspect:
-
Show block devices and filesystems:
lsblk -f -
Show UEFI boot entries:
sudo efibootmgr -v
If needed I can mount the installed system and EFI partition and chroot; these are the commands I’m prepared to run if someone confirms them:
sudo mkdir -p /mnt/target
sudo mount /dev/nvme0n1p3 /mnt/target
sudo mkdir -p /mnt/target/boot/efi
sudo mount /dev/nvme0n1p1 /mnt/target/boot/efi
for d in /dev /dev/pts /proc /sys /run; do sudo mount --bind $d /mnt/target$d; done
sudo chroot /mnt/target /bin/bash
inside chroot:
apt update
apt install --reinstall grub-efi-amd64 shim-signed -y
grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=LMDE --recheck
update-grub
exit and unmount:
exit
for d in /run /sys /proc /dev/pts /dev; do sudo umount /mnt/target$d || true; done
sudo umount /mnt/target/boot/efi || true
sudo umount /mnt/target || true
sudo reboot
If grub-install fails I can also list the EFI folder:
sudo ls -R /mnt/target/boot/efi/EFI
and create a UEFI entry manually with efibootmgr if someone confirms the correct path.
Thanks in advance — I can paste lsblk -f and sudo efibootmgr -v outputs right away.
vagrant wharf
honest ermine