Hi, I recently moved my disks to a new computer and I'd like to avoid legacy CSM and boot from UEFI. So far I can boot fine with CSM enabled.
My setup is: sda -> GPT ├─sda1 95,4M part /boot/efi ├─sda2 4M part BIOS boot partition ├─sda3 166,7G part │ ├─vgssd-slash 35G lvm / │ ├─vgssd-var 116,7G lvm /var │ └─vgssd-usrlocal 15G lvm /usr/local ├─sda4 2G part [SWAP] └─sda5 54,8G part (not important) sdb... (data, not important) I install grub like this # grub-install --verbose --target=x86_64-efi with GRUB_PRELOAD_MODULES="lvm ext2 part_gpt", and it creates and 'efi' file in a subdirectory in /boot/efi/EFI/ as expected. Then I reboot, get into the BIOS setup, select the option to boot, disable CSM and try to boot from the grub efi image. However, what I get is: error: disk `lvmid/yc9Fs5-...(long string)...-rF8WbQ' not found. Entering rescue mode... grub rescue> The lvmid tag refers to the root partition (vgssd-slash). From there I have a reduced shell where I only see (hd0) and (hd1) with no partitions. I have tried different options like trying to set up a device.map file or adding the 'lvm' module like this: grub-install --verbose --target=x86_64-efi --modules="part_gpt part_msdos lvm" and the error turns into: Unknown command 'search.fs_uuid'. error: unknown filesystem. Entering rescue mode... grub rescue> However, I can't see any 'search.fs_uuid' in the grub.cfg file. Adding the 'search_fs_uuid' module does not solve it. Any ideas on how to fix this? Thanks in advance -Eduardo
