[pve-devel] [PATCH installer 0/2] add stricter checks w.r.t. BIOS boot on 4Kn disks

[Christoph Heiss <c.heiss@proxmox.com>]

Booting in legacy BIOS mode on 4Kn disks is generally unsupported, or
rather, simply does not work. The GUI installer already checks that
properly for LVM and ZFS, but is missing it for Btrfs, so extend the
check appropriately.

Further, the TUI installer only checked it for ZFS RAIDs, but not for
LVM and Btrfs. Add proper checks there as well, such that the user gets
immediate feedback early than during the install process.

Seems nobody noticed yet, but apparently 4Kn disks are pretty rare these
days anyway.

Prerequisites
-------------
This series is based on top of

  [PATCH installer 0/6] some small, assorted fixes & cleanups
  https://lists.proxmox.com/pipermail/pve-devel/2023-August/058708.html

which fixes another 4Kn disk issue.

Testing
-------
Tested by creating a block device with 4K sectorsize using
the following QEMU args:
  -device virtio-blk,drive=testdrive4k,logical_block_size=4096,physical_block_size=4096
  -drive file=/path/to/4k-testdisk.img,if=none,id=testdrive4k

The 4k-testdisk.img was created with:
  qemu-img create -f qcow2 /path/to/4k-testdisk.img 16G

Christoph Heiss (2):
  raid setup: btrfs: do not allow legacy BIOS boot on 4Kn disks
  tui: disallow legacy BIOS boot from 4Kn disks for all filesystems

 Proxmox/Install.pm                          |   4 +
 proxmox-tui-installer/src/main.rs           |   2 +-
 proxmox-tui-installer/src/setup.rs          |   2 +-
 proxmox-tui-installer/src/views/bootdisk.rs | 171 ++++++++------------
 4 files changed, 74 insertions(+), 105 deletions(-)

--
2.41.0