SOLVED - Linux Mint 13 UEFI boot
Reboot and Select proper Boot device
or Insert Boot Media in selected Boot device and press a key
Here is what I did:
1. Boot USB stick from boot menu in UEFI mode.
2. Install lvm2 and grub-efi (the latter uninstalls grub-pc and some other gfx... packet
3. Using gparted, I wiped my SSD and created a gpt partition table on the SSD (/dev/sda)
4. Using gparted, I created and formatted /dev/sda1 as EFI system partition flagged "boot", size 100MB, mounted as /boot/efi; /dev/sda2 as ext2, size 500MB, mounted as /boot; the rest of the SSD was assigned to /dev/sda3, unformatted, marked "LVM"
5. pvcreate /dev/sda3 to create a physical LVM volume using /dev/sda3
6. vgcreate to create vol1 on /dev/sda3
7. lvcreate to create the following Linux partitions in vol1: / (root) formatted to ext4; /home formatted to ext4
8. I ran the Linux Mint installer and assigned and formatted the following partitions: /dev/mapper/vol1-root using ext4 mounted at /; /dev/sda2 using ext2 mounted at /boot; /dev/mapper/vol1-home using ext4 mounted at /home; and selected as boot device /dev/sda
9. After the installer finished successfully, I went into a terminal shell to mount the installed system and chroot to /mnt (after mounting dev), then mounted /proc etc. as described in the "Installing LVM and encryption on LMDE" (or so) thread here in the forum
10. I installed lvm2 and then grub-efi
11. Ran grub-update and grub-install
I checked the grub.cfg file and the /boot/efi/EFI/linuxmint directory and all looks OK. The grub.cfg contains a modprobe lvm at the beginning (but not in the subsections - is this OK?). I also checked the /etc/fstab file to see that all the partitions are properly listed.
In the past I managed to install Linux Mint directly on disk, i.e. not using LVM. At other times I tried to install Linux on LVM (except /boot and /boot/efi) and got a grub prompt ( I then had hardware problems - my memory was faulty).
I also checked the BIOS setup to make sure that EFI boot was enabled/preferred. When booting, I selected the "linuxmint:...." option which seems to be the UEFI option.
I know this is not the conventional way of installing Linux Mint, but I was hoping to make it work. All files seem to be in place and I can boot the USB stick and access the partitions on the SSD. I'm sure it's my mistake, can someone point me into the right direction?
P.S.: For those who've followed my other posts on UEFI boot, bleeding edge hardware issues, or preferred Linux Mint distribution, I've finally solved the memory issue by replacing my memory. It has been tested successfully under Windows 7 using Prime95, Aida64, as well as using the memtest86+ v4.2 bootable USB stick and a hardware-based RST memory and stress test system. So I believe I'm finally in the possession of a functional PC hardware.
EDIT: I've solved the issue. Instructions on how to install Linux Mint 13 on LVM volumes and booting it using UEFI (EFI) can be found further down here: http://forums.linuxmint.com/viewtopic.p ... 20#p608123.