[pve-devel] [PATCH installer 4/6] tui: setup: fix disk size for 4Kn block devices

[Christoph Heiss]

This can be 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

Signed-off-by: Christoph Heiss <c.heiss at proxmox.com>
---
 proxmox-tui-installer/src/setup.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/proxmox-tui-installer/src/setup.rs b/proxmox-tui-installer/src/setup.rs
index e51bb4d..c071b80 100644
--- a/proxmox-tui-installer/src/setup.rs
+++ b/proxmox-tui-installer/src/setup.rs
@@ -283,7 +283,10 @@ where
         .map(
             |(index, device, size_mb, model, logical_bsize, _syspath)| Disk {
                 index: index.to_string(),
-                size: (size_mb * logical_bsize as f64) / 1024. / 1024. / 1024.,
+                // Linux always reports the size of block devices in sectors, where one sector is
+                // defined as being 2^9 = 512 bytes in size.
+                // https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/linux/blk_types.h?h=v6.4#n30
+                size: (size_mb * 512.) / 1024. / 1024. / 1024.,
                 block_size: logical_bsize,
                 path: device,
                 model: (!model.is_empty()).then_some(model),
-- 
2.41.0