I can confirm the bug. Initially faced with it in sid-ports for riscv64 via qemu chroot (starting since 2022-10-15), but it's also reproducable in sid.
``` # cat /etc/os-release PRETTY_NAME="Debian GNU/Linux bookworm/sid" NAME="Debian GNU/Linux" VERSION_CODENAME=bookworm ID=debian HOME_URL="https://www.debian.org/"; SUPPORT_URL="https://www.debian.org/support"; BUG_REPORT_URL="https://bugs.debian.org/"; # sgdisk --version GPT fdisk (sgdisk) version 1.0.9 # ls -la /disk.img -rw-r--r-- 1 root root 524288 Oct 20 10:10 /disk.img # sgdisk /disk.img Problem opening �B�a for reading! Error is 2. The specified file does not exist! ``` From my investigations, the problem appeared after upgrading `libpopt0`. Previously there was a symlink `libpopt.so.0 => libpopt.so.0.0.1` and sgdisk worked well; now it's a `libpopt.so.0 => libpopt.so.0.0.1` and sgdisk fails. Most probably, `gdisk` package (that haven't get upgrade recently) should be simply rebuilt agains new version of `libpopt0` library.
