How to pass options to the booted system via PXECONFIG script

[robinsmidsrod]

The file is only available in memory until the pivot_root call is used to switch out of the ramdisk environment to your real root device (NFS). If you add init=/bin/bash (or /bin/sh or /bin/ash) you'll be dumped into a shell while the initrd is loaded, and you should be able to cat /tmp/test.txt. Not sure if you need to disable root=/dev/nfs or not to avoid the pivot_root call (as you're using the kernel-based NFS client). If it is still not there, you have another issue in your system which require more debugging information/logs to figure out.