Robin
I have seen this strange hanging on “waiting for /dev to be fully populated” some times also before. This can be caused by many different reasons. Obviously your system waits for some device in /dev which wouldn’t respond correctly as expected. Since your screen turns green, this could be a hint to an graphics device issue, either conflicting with some other hardware, or simply using a broken driver. And probably the new message ‘error parsing PCC subspaces from PCCT’ gives you a key what causes the problem. Try searching the web for it, you’ll see this is quite a common issue and can have many reasons also.
What I would do is, checking:
1.) Check if you can still boot from an antiX live Medium to the modern kernel.
If this fails all of a sudden on a machine known to be running fine on it before, you might check whether some BIOS settings have been changed. In some rare cases you might even need a BIOS update.
2.) In case you have a dual boot with a windows installation make sure to uncheck the checkbox »Turn on fast startup (recommended)«
Windows → Control Panel → All Control Panel Items → Power Options → System Settings → Change settings that are currently unavailable (UAC)
This Hiberboot feature (fast startup) used by windows per default is known to make this kind of trouble when active on dual boot machines.
3.) Broken graphics drivers can cause this error also. Check if you can boot into antiX safe video mode from boot menu.
Then check the dmesg output for problems.
4.) Check the filesystems on your drives/partitions for corruption and the drives themselves for bad sectors and other errors.
In my case it was simply a bad sector on an additional internal hdd. Removing this broken hdd has solved the issue for me completely. But you will probably find some other reason causing this on your machine.
Windows is like a submarine. Open a window and serious problems will start.