i've thought about it and perhaps you could build some type of script to run before the prestart even, which checks for UEFI and if not, set's the bios to UEFI (lenovo and others have scripts for that), then reboots to the correct mode before allowing you to select a UEFI mode task sequence
you'd have to use something that kicks off before the task sequence engine, like this <http://www.windows-noob.com/forums/index.php?/topic/12277-updated-script-how-can-i-check-for-network-connectivity-storage-before-starting-a-task-sequence-in-system-center-2012-r2-configuration-manager/> i have not tested it but i believe it will work for some hardware at least, the key is that it would be a script that is not task sequence aware, that runs before your task sequence and involves user input of some sort (to make the decision) On Tue, May 19, 2015 at 1:07 AM, Jason Sandys <[email protected]> wrote: > Correct. There have discussions on this by Tim Mintner, Keith Garner, > and Michael Niehaus and the conclusion is that this is not possible in an > unattended manner or with a single TS. > > > > J > > > > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *Roland Janus > *Sent:* Monday, May 18, 2015 5:02 PM > *To:* [email protected] > *Subject:* [mssms] Switch to UEFI during OSD > > > > Anyone tried that? > > > > Switching the BIOS to UEFI with a command line isn’t the problem, but > doing this as part of OSD might be. > > Refresh using hardlinks can’t work, but anyone tried switching to UEFI > during OSD for baremetal? > > (That of course would lead to a mix of legacy and UEFI installations) > > > > Assuming the computer is currently configured to use Legacy bios mode, > that seems like a chicken/egg problem. > > > > -Roland > > > > > > > >
