@florent LVM restore still failed for me (fix_flr commit b7230). Trying file restore from Ubuntu 22 VM (on S3 delta backup). Single VDI, 3 partitions (bios, uefi boot, LVM root). Accessing the LVM root.
Jun 5 15:26:28 xo2 kernel: [16230.122916] loop5: detected capacity change from 0 to 21474836480
Jun 5 15:26:35 xo2 xo-server[4046]: 2026-06-05T19:26:35.793Z xo:api WARN admin | backupNg.listFiles(...) [146ms] =!> Error: Command failed: mount --options=loop,ro,sizelimit=20397948928,offset=1075838976 --source=/tmp/ouit10u6k3f/vhd0 --target=/tmp/d4l0v4n01h
Jun 5 15:26:35 xo2 xo-server[4046]: mount: /tmp/d4l0v4n01h: unknown filesystem type 'LVM2_member'.