On Sat, 2016-05-28 at 22:18 +0200, Steinar H. Gunderson wrote: > Package: grub-efi-arm > Version: 2.02~beta2-36 > Severity: normal > > Hi, > > grub-install completely refuses to install an EFI GRUB to a /boot/EFI > that is not on vfat or hfs+ (the C source code has explicit checks). > However, there's no good reason why, on ARM, /boot/EFI couldn't be on > ext2/ext3/ext4; U-Boot reads it just fine,
What about actual UEFI firmware? I think in general that won't speak ext* or anything other than FAT. The EFI spec mandates a minimal set of filesystems which must be supported for the ESP (which is what is mounted on /boot/EFI). AIUI only FAT (and only a specific variant of FAT) is in that set. Ian.
