It is multicast but best person will be Daniele :)
-----Original Message----- From: Andrei Borzenkov [mailto:arvidj...@gmail.com] Sent: Monday, December 01, 2014 4:59 PM To: Prasad, Parmeshwr Cc: The development of GNU GRUB Subject: Re: Remotely choose a menu entry On Mon, Dec 1, 2014 at 1:43 PM, <parmeshwr_pra...@dell.com> wrote: > > If you wanted system to boot with wol package then it should get kernel and > initrd from somewhere. > What is your final goal? How you will get all required binaries ? > Are you asking me? I'm not a topic starter. > Regards > Parmeshwr > > -----Original Message----- > From: Andrei Borzenkov [mailto:arvidj...@gmail.com] > Sent: Monday, December 01, 2014 4:08 PM > To: Prasad, Parmeshwr > Cc: The development of GNU GRUB > Subject: Re: Remotely choose a menu entry > > On Mon, Dec 1, 2014 at 11:19 AM, <parmeshwr_pra...@dell.com> wrote: >> Is your idea is to send kernel+grub+initramfs through magic packet ? > > No. > >> >> if yes then lot of wol design should change first. >> >> >> >> Regards >> >> Parmeshwr >> >> >> >> From: grub-devel-bounces+parmeshwr_prasad=dell....@gnu.org >> [mailto:grub-devel-bounces+parmeshwr_prasad=dell....@gnu.org] On >> Behalf Of Brugnara Daniele >> Sent: Saturday, November 29, 2014 9:47 PM >> To: Andrei Borzenkov; Brugnara Daniele >> Cc: grub-devel@gnu.org >> Subject: Re: Remotely choose a menu entry >> >> >> >> I am thinking about a secret key known from both sender and receiver >> and encode/decode the packet using this, a strong algorithm, of course. >> >> Il giorno Sab 29 Nov 2014 17:03 Andrei Borzenkov >> <arvidj...@gmail.com> ha >> scritto: >> >> В Sat, 29 Nov 2014 01:10:28 +0000 >> Brugnara Daniele <dani...@brugnara.me> пишет: >> >>> Hi all. >>> >>> I'm thinking about a system that boots with a wol packet. Who sends >>> this packet in 99% of cases, is far away from that computer and it >>> could be useful to boot into a different system instead of the >>> default one. (please keep in mind that changing the default option >>> in grub is not a option for this specific use case) >>> >>> If a wol can be delivered successfully, an UDP packet containing >>> simple datas should be enough to achieve this. >>> >>> Something like this: >>> >>> - MAC: the destination device mac address >>> - choice: a number (can be empty) >>> - commandLine: a full commandline (a choice or this..) >>> - more? I don't know for now.. >>> >>> This option should be enabled in the grub.conf by the user. >>> >>> What do you think about? Could this be useful? Am I missing >>> something, like a tool that does this automagically? >>> >> >> Yes, it could probably be implemented as a command that loops >> listening for magic packet and then sets default menu option. Of >> course, you would need to consider security aspects (who is allowed >> to send packet, how it is authenticated etc). >> >>> I've read about an eth-to-serial but it's not what I want. >>> PXE or bootp is not an option here. I don't want to manage another >>> server... >>> >>> Thanks for your time. >>> >>> Daniele. _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
