bug(os): os-prober fails to recognize other operating systems

[boydthomson]

Rhino Linux version & platform:
The version of Rhino Linux, as well as architecture/platform (generic, pine, raspi)
OS: Rhino Linux 2025.2 (mainline) x86_64
Host: LENOVO 20NKS0T115
Kernel: 6.13.2-061302-generic
CPU: AMD Ryzen 5 PRO 3500U

After updating kernel, other installed OSes are not available from grub

Describe the bug
After installing Rhino I had several options in the boot menu for a few other distros installed on my laptop.

To Reproduce
Run sudo os-prober

Expected behavior
Scans and finds partitions with other operating systems

Terminal Output
/] boyd@t495r $ sudo os-prober
[sudo] password for boyd:
device-mapper: version ioctl on failed: Permission denied
Incompatible libdevmapper 1.02.201 (2024-10-02) and kernel driver (unknown version).
/dev/nvme0n1p1@/EFI/Microsoft/Boot/bootmgfw.efi:Windows Boot Manager:Windows:efi
Segmentation fault
Segmentation fault
Segmentation fault
Segmentation fault
Segmentation fault
Segmentation fault
Segmentation fault

[oklopfer]

Please include your version and platform information at the top of the post.

[boydthomson]

Done now. Sorry.

[oklopfer]

When you installed the system, did you select encryption/LUKS?

[boydthomson]

I did attempt to install with LUKS, a few times, using the Custom partitioning setup, but the installer failed each time. In the end I installed on an empty ext4 partition. I believe it was the second option which was something like Replace Partition.

[oklopfer]

Can you try running sudo apt update && sudo apt install cryptsetup-initramfs, and seeing if:

1. anything new installs
2. anything updates
3. if either of the above 2 are true, sudo os-prober works after installing, or after a reboot

[boydthomson]

cryptsetup-initramfs is already the newest version (2:2.7.5-1ubuntu2)
nothing new installs
there were updates, but still same segfaults

[oklopfer]

Alright give me a day or two to keep investigating. Thanks for testing and holding on ✌️