Animpacz I have something similar, my master boot record is missing, at boot the screen reads 'Please insert bootable media and press any key to continue'. Using a 'Live CD' installation disk, i can see my OS files and access them from the file manager. Using the terminal in the live-cd, I've tried to get the MBR repaired, but to no avail thus far. I do not know as i am NOT a person who writes hours of Code, maybe/perhaps an unknown bug exists??? I have 'Mounted' the OS file system and run the file-synch command and it returns this:
[ERROR] cbm (../src/lib/files.c:L181): Invalid block device: /
[ERROR] cbm (../src/lib/system_stub.c:L31): Invalid block device: 0:30
[ERROR] cbm (../src/lib/probe.c:L213): No device for path: /
(../src/lib/probe.c:cbm_probe_path()) Out of memory
[ERROR] cbm (../src/lib/files.c:L181): Invalid block device: /
[FATAL] cbm (../src/bootman/sysconfig.c:L277): sysconfig insane: Missing root device
[ERROR] cbm (../src/bootman/update.c:L218): Failed to repair running kernel
[FATAL] cbm (../src/bootman/sysconfig.c:L277): sysconfig insane: Missing root device
[FATAL] cbm (../src/bootman/update.c:L250): Failed to install default-current kernel: ///usr/lib/kernel/com.solus-project.current.6.10.13-304
If you can fix this let me know @Animpacz