Le 19/09/2018 à 16:50, steve a écrit :
Googling around, I suspect that these errors come from the fact that the
BIOS is configured to but in Legacy mode (aka Bios mode) rather than in
the more modern UEFI mode. Just an hypothesis.
But the problem is that my old sdd's have all (except /dev/sdd, which I
just noticed) a msdos partition table:
So what ?
Partition Table: gpt
1 1049kB 524MB 523MB ntfs Basic data partition
2 524MB 629MB 105MB fat32 EFI system partition
3 629MB 646MB 16.8MB Microsoft reserved partition
4 646MB 250GB 249GB ntfs Basic data partition
Grub-pc is currently installed on /dev/sda1 (/boot) and /dev/sda.
(...)
My questions are rather simple. Is it conceivable to convert the sdd's
to gpt partition table (...) so I can switch my BIOS to UEFI?
You don't need to convert anything. UEFI can use DOS partition tables.
All you need is an EFI system partition. As you can see above, Windows
already created one. You can mount it on /boot/efi and install GRUB EFI.
Note that registering GRUB into the UEFI boot variables requires to boot
in EFI mode. You can do it with a Debian installation or live image.
