[ipxe-devel] how to edit kernel & initrd

Michael Brown mbrown at fensystems.co.uk
Thu Mar 7 13:36:58 UTC 2013

On Thursday 07 Mar 2013 11:47:10 Leo Baltus wrote:
> A kernel command line can get quite complex with all sorts of arguments. So
> it would be very convenient in ad hoc situations.
> Is there a possibility of editing a predefined kernel and initrd in the
> same way as you can edit things with 'config'?

Yes, you can do this using the "read" command:

  set cmdline selinux=0 console=ttyS0,115200n8 console=tty0
  echo -n Kernel command line: ${}
  read cmdline

I've updated http://ipxe.org/cmd/read to include this as an example.


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