All,
I'm trying to work out how to move / from a MBR with spinning disks
to NVMe. The bios only boots from NVMe in UEFI mode, but supports
booting from both UEFI and MBR in UEFI+Legacy mode. I've formatted the
NVMe and set the optimal block size and created the ESP, / and swap
partitions. I'm following along Migrate install to new hardware wiki [1]
and using the installation guide [2].
The installation guide mounting of the ESP to /boot (/mnt/boot) seems
to contradict what is documented in the EFI system partition wiki
typical mount points where it describes the disadvantages of mounting
ESP to /boot and suggests you mount ESP to /efi instead [3].
The listed disadvantages include:
o This prevents setting file-specific permissions and/or extended
attributes,
o This increases the size requirement for the ESP,
o This exposes the kernel and initramfs images to potentially
hazardous manipulation from bootable drives or other operating systems
when dual-booting,
o This makes encrypting /boot impossible, and
o This makes root volume snapshots (using Btrfs, Bcachefs, ZFS, LVM)
less effective as /boot content would not be included.
Currently the system is booting from the MBR hard drives and I'm just
setting up the NVMe before booting the Arch install media and then
copying / to new NVMe. Going forward, what is the current recommended
mount of ESP in this situation, /boot or /efi?
[1] Migrate install to new hardware
https://wiki.archlinux.org/title/Migrate_installation_to_new_hardware
[2] 1.11 Mount the file systems
https://wiki.archlinux.org/title/Installation_guide
[3] 4.1 Typical mount points
https://wiki.archlinux.org/title/EFI_system_partition
--
David C. Rankin, J.D.,P.E.
