dracut command not found

Hi,

one of my machines doesn't boot properly.
It starts booting, but then hits dracut warning
/dev/mapper/rhel-root does not exist
/dev/rhel/root does not exist.

In other topic I found out that it can be fixed with dracut --regenerate-all, but I am hitting dracut: command not found?

Any ideas?

Cheers,
Lukas