Bump has anyone tested Citrix provisioning 2507 with bios enabled target devices/vdisks yet ?

According to the docs, it's gone.

this statement doesnt really say its fully gone

Just convert to uefi and bdm. It doesn't take long to convert new images to it.

this is an large existing PVS farm with Bios enabled target devices running on Xenserver 8.4 using BDM Iso. From memory its been a long time since i had to convert an existing PVS farm from bios to UEFI ..... you take a copy of the existing vdisk and convert the Vdisk using mbrgpt with diskpart then re import to pvs., Convert the VM's to UEFI in Xenserver with xe vm-params command, assign updated vdisk , Create a new BDM iso with UEFI enabled target devices ticked ? is that correct ?

yeah that only covers some parts

Easiest method I have done is reverse image the disk. Convert it uefi with the above tools, then recapture it as a new disk, and deploy new machines.

what about the BDM iso ?

When you create new machines you create a new bdm for the uefi support.

using the Citrix PVS boot device manager ? I cant really create new machines without deleting the existing machines as not enough capacity to run side by side as its a 24/7 operation. It will need to done in stages for example XS hosts 1-10 and all VMs/target devices converted to UEFI and XS hosts 11-20 and all VM's/target devices still staying on bios

The target devices will need to be modified to run uefi as well. You probably are going to have to build as many machines as you can as uefi, swing them into the Delivery Group, then decom the same number from the old Machine Catalog, and repeat.

probaly best do it a XS host at a time , 6 vm's on host into MM , Convert the Vdisk to UEFI , Change the XS params on the existing 6 VM's/target devices to use UEFI, Create new BDM iso and attach to VM's/target devices, assign updated vdisk to these machines

If you have automation or the ability to build a new image, it will be the cleanest way and then run the setup wizard again to deploy in a rolling fashion.

@c4rm0 Just asked engineering and just like wiht 2042 you can still boot BIOS targets but you cant add new ones. I do think now would eb a good time to convert to efi and get it over with.