wohali

Using C-Kermit with SimH to transfer files from a simulated PDP-11

This is a short guide on copying files to/from a simulated PDP-11 using C-Kermit. It's slow, but extremely robust.

Configuring SimH

Here's a minimal machine config for Kermit. It's possible to run in less memory but I didn't spend the time to work it out.

The most important parts of this config are the dli/dlo lines, which enable a second serial line for file transfer, and the cpu line setting 256KB of memory.

matejaputic

global
	# all file names are relative to the directory containing this config
	# file by default
	default-path config

	# refuse to start if any warning is emitted at boot (keep configs clean)
	zero-warning

	# Security hardening: isolate and drop privileges
	chroot /var/lib/haproxy