Install NixOS 22.05 from SD: Can't start OS-prober

I’m installing NixOS 22.05 from USB Stick on Asus Zenbook. Install log is here:

Installer fails with:

2022-06-12 - 13:21:51 [1]: OsproberEntryList PartUtils::runOsprober(DeviceModel*)
ERROR: os-prober cannot start.

Any ideas?


error: creating file '/tmp/calamares-root-t0_b8sc1/nix/store/gwlgfywzqypv91rxw916v81mpzhckdz5-python3-3.9.13/lib/python3.9/ctypes/test/__pycache__/test_bitfields.cpython-39.opt-1.pyc': Read-only file system

did the fs you attempted to install to remount read-only?

It seems that some other files before could have been copied over.