Re: Loading different kernels based on platform identification (DMI)

[Andrei Borzenkov]

В Fri, 23 Jan 2015 14:44:59 +0000
Rajat Jain <address@hidden> пишет:

> Hello,
> 
> I have a case of a hot-pluggable USB stick that can be put in multiple 
> systems to boot. The USB stick has grub installed and a couple of different 
> kernels.
> 
> My Goal is to write a grub script that:
> - determines the platform type (by consulting the DMI / SMBIOS data). I have 
> verified that the BIOS passes the system identification correctly via the DMI 
> (by dumping in linux).
> - based on the platform type, loads a particular kernel.
> 
> My Question:
> How can I read DMI data in a grub script. Specifically, I'm looking at 
> getting data such as System information, BIOS version, etc.
> http://en.wikipedia.org/wiki/System_Management_BIOS
> 
> I did look at the grub manual 
> (http://www.gnu.org/software/grub/manual/grub.html) as well as the commands 
> available in my grub but could not find any reference to how I could do the 
> same.
> 
> Any help or pointers shall be appreciated.
> 

DMI parsing was discussed a while back and proposed patch was posted on
grub-devel. It was quite a while back, so patch probably needs
rebasing. Somebody who cares enough should probably try to submit it
for review again after testing with current git.