Aye, the problem is that efi iPXE can't directly boot 6.x versions of RHEL and CentOS, so I was trying to determine if its possible to either pass a boot config to grub via command line or if Grub can pull the PXE space Option 209/Option 210 data so I can pass generated config for it to load.
We used a similar work around for booting Legacy PXE installs of ESXi using PXElinux, but unfortunately, Redhat is a lot more limited. -----Original Message----- From: Randy Goldenberg <[email protected]> Sent: Saturday, March 14, 2020 11:31 AM To: Rivard, Matthew T <[email protected]> Cc: Grub <[email protected]> Subject: Re: Is it possible to pass a remote config file to a PXE booted instance of grub.efi On Saturday March 14, 2020, Rivard, Matthew T wrote: >Is there a command line flag that allows you to pass a config file at launch >time of a PXE loaded copy of grub.efi ? This would be a grub.efi made with >the makestandalone tool. > >Example would be grub.efi -c >http://server/that/makes/the/configfile/for/this/boot.scriptinglngextension?variables=&morevariables=<http://server/that/makes/the/configfile/for/this/boot.scriptextension?variables=&morevariables=> I don't know if grub supports what you are looking for. iPXE does, though. https://ipxe.org/start Sample boot.ipxe and boot.ipxe.cfg: https://gist.github.com/robinsmidsrod/2234639 HTH,
