A common problem with /sbin/init is that some distributions (e.g., Red Hat Linux) come with /sbin/init dynamically linked. So you have to provide a correct /lib setup to the client. An easy thing one could try is replacing /sbin/init (for the client) with a statically linked ``Hello World'' program. This way you know if it is something more basic, or ``just'' a problem with dynamic linking.
Also note that Busybox by default installs its init symlink in
/bin rather than /sbin. You may need to move it or
pass an explicit init= parameter on the kernel command line, as
shown in the final example of the previous section.
If you get some garbled messages about ttys when booting, then you should run a MAKEDEV from the client in the /dev directory. There are rumors that this doesn't work with certain server OSes that use 64-bit device numbers; should you run into this, please consider updating this section! A potential solution would be to create a small /dev ram disk early in the boot process and reinstall the device nodes each time, or simply embed directly into the kernel a suitably initialized ramdisk.