i'd just wait until microsoft releases the 'run another task sequence from the first' next year and use that to do it, or, develop something very custom and very unsupported, such as pxe boot, copy the contents of the _SMSTaskSequence to somewhere like a network share, then use a diskpart script to make the switch, and before rebooting xcopy the _SMSTaskSequence back to whatever the OSDISK is...
before rebooting. might work, might not, definetly not supported On Thu, Dec 31, 2015 at 11:14 PM, Miller, Todd <[email protected]> wrote: > > > I am trying to take a machine that is Legacy BIOS and switch it to UEFI > during a bare metal install. So take a machine out of the box and end up > with a UEFI enabled, GPT partitioned, bitlockered, Windows 7sp1 x64 > deployment (fully automated) > > > > > > So the system boots in Legacy bios to a USB Stick with the WinPE 5.1 64bit > boot image. Then I am using Dell tools to switch the Firmware to UEFI > mode. Then I repartition the disk in the GPT format. Then I want to > reboot the task sequence to boot into UEFI mode from the newly GPT > partitioned disk. My problem is that “Restart Computer” task step refuses > to stage the WinPE image on that GPT partitioned disk. > > > > The error says that disk C: is on a GPT disk, but the system is MBR. It > is unable to see that I have just switched the Firmware to UEFI and so it > is refusing to stage WinPE on that GPT partition. I would have sworn I > had this working, but now it is broken. Can TSCore.dll be made to > reevaluate the Firmware state so it can see that the Firmware has been > switched to UEFI? > > > > Any ideas on how to trick “Restart Computer” step into staging the WinPE > image to the boot drive – even though it thinks the partitioning scheme is > wrong? It isn’t realty wrong… if it would just stage it and reboot, it > would boot OK. > > > > > > > > SCCM 2012R2Cu4, OSD+MDT2013, deploying Windows 7sp1 x64, boot image is > WinPE 5.1 based. > > > > > > My other solution would be to force the desktop support staff to go in an > manually set the BIOS to UEFI mode and then restart the process, but that > is unreliable since it is not automated. > > > ------------------------------ > Notice: This UI Health Care e-mail (including attachments) is covered by > the Electronic Communications Privacy Act, 18 U.S.C. 2510-2521, is > confidential and may be legally privileged. If you are not the intended > recipient, you are hereby notified that any retention, dissemination, > distribution, or copying of this communication is strictly prohibited. > Please reply to the sender that you have received the message in error, > then delete it. Thank you. > ------------------------------ >
