On Mon, Aug 13, 2012 at 01:10:31AM +0100, Steve McIntyre wrote:
> 1. Add a new subarch of "efi" for i386 and amd64 in
> libdebian-installer, worked out (as usual for EFI) from whether
> /sys/firmware/efi is accessible. This filters through readily to
> archdetect, used all over the place elsewhere in d-i.
This needs efivars loaded AFAIK. I'm not yet familiar with the EFI part
of the Linux kernel.
> 2. Build efi-reader for amd64 as well as ia64. Not sure if this
> provides anything important, but it doesn't hurt. :-)
This is needed for what?
> 3. Build elilo-installer for amd64 too, and mark it as installable for
> i386/efi|amd64/efi.
Does elilo provide 32 and 64-bit efi binaries? All the current machines
need 64-bit binaries.
> 4. Mark grub-installer as not installable for i386/efi|amd64/efi
No.
> 5. Mark lilo-installer as not installable for i386/efi|amd64/efi
Okay.
> 6. Several tweaks to partman-auto:
> * Switch from fat16 to fat32 in ia64 recipes
Why?
> The first of these needs testing - is EFI on ia64 *definitely* ok
> with fat32, or must it have fat16? I've also upped the size of the
> EFI partition to 512MB, a more sensible minimum in case of multiple
> OS installs. I cloned tha ia64 recipes, then the diff shows the
> changes since. Not 100% sure of the best approach for partman-auto,
> I'll admit here. Thoughts?
It works fine with FAT16, however grub needs the partition properly
alligned.
> 8. partman-partitioning: for amd64/efi and i386/efi, use gpt instead
> of msdos
Nope. EFI works fine with msdos.
> +/* Are we on an EFI system? Check to see if /sys/firmware/efi
> + * exists */
> +static int is_efi(void)
> +{
> + int ret = access("/sys/firmware/efi", R_OK);
> + if (ret == 0)
> + return 1;
> + else
> + return 0;
> +}
Whitespace damage.
Bastian
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