UEFI Windows 10 32 bits ISO

[eglyn]

Hi,

I try to setup a Windows 10 32 bits with UEFI bios, but I can't boot on the iso.

I tried a Debian ISO, and it works...

So , I tried to manualy add the bootia32.efi in the OVMF menu, and it said that:



Any idea to setup a Windows 10 32 bits installation with UEFI ?

thx !

 

[Hannes Laimer]

Hey,

does the 64 bit version of Windows 10 work? Could you post pveversion -v?

 

[eglyn]

Yes Windows 10 64 iso boots :/
and Windows 10 32 bits iso boots on Seabios mode

proxmox-ve: 7.1-1 (running kernel: 5.13.19-1-pve)
pve-manager: 7.1-10 (running version: 7.1-10/6ddebafe)
pve-kernel-helper: 7.1-13
pve-kernel-5.13: 7.1-9
pve-kernel-5.13.19-6-pve: 5.13.19-14
pve-kernel-5.13.19-2-pve: 5.13.19-4
pve-kernel-5.13.19-1-pve: 5.13.19-3
ceph-fuse: 15.2.15-pve1
corosync: 3.1.5-pve2
criu: 3.15-1+pve-1
glusterfs-client: 9.2-1
ifupdown2: 3.1.0-1+pmx3
ksm-control-daemon: 1.4-1
libjs-extjs: 7.0.0-1
libknet1: 1.22-pve2
libproxmox-acme-perl: 1.4.1
libproxmox-backup-qemu0: 1.2.0-1
libpve-access-control: 7.1-6
libpve-apiclient-perl: 3.2-1
libpve-common-perl: 7.1-3
libpve-guest-common-perl: 4.1-1
libpve-http-server-perl: 4.1-1
libpve-storage-perl: 7.1-1
libspice-server1: 0.14.3-2.1
lvm2: 2.03.11-2.1
lxc-pve: 4.0.11-1
lxcfs: 4.0.11-pve1
novnc-pve: 1.3.0-2
proxmox-backup-client: 2.1.5-1
proxmox-backup-file-restore: 2.1.5-1
proxmox-mini-journalreader: 1.3-1
proxmox-widget-toolkit: 3.4-7
pve-cluster: 7.1-3
pve-container: 4.1-4
pve-docs: 7.1-2
pve-edk2-firmware: 3.20210831-2
pve-firewall: 4.2-5
pve-firmware: 3.3-6
pve-ha-manager: 3.3-3
pve-i18n: 2.6-2
pve-qemu-kvm: 6.1.1-2
pve-xtermjs: 4.16.0-1
qemu-server: 7.1-4
smartmontools: 7.2-pve2
spiceterm: 3.2-2
swtpm: 0.7.1~bpo11+1
vncterm: 1.7-1
zfsutils-linux: 2.1.2-pve1

 

[Neobin]

Maybe try with disabled secure boot in the VMs UEFI.
Not tested, only an idea.

 

[eglyn]

Maybe try with disabled secure boot in the VMs UEFI.
Not tested, only an idea.

I need secure boot because of security policy of the network :/ (+ TPM, UEFI and Bitlocker active with TPM)

I try to install the same ISO on Vsphere with vTPM and EFI (and secure boot active), and it works, I think it is a issue with Proxmox

 

[Hannes Laimer]

For a 32-bit OS, you need a 32-bit UEFI (same for 64-bit). It should be possible to build OVMF with 32-bit support. However, since the use cases are so limited we do not support that. If I may ask, why do you need the 32-bit version of Windows? Everything that runs on 32-bit should also run on 64-bit.

 

[eglyn]

For a 32-bit OS, you need a 32-bit UEFI (same for 64-bit). It should be possible to build OVMF with 32-bit support. However, since the use cases are so limited we do not support that. If I may ask, why do you need the 32-bit version of Windows? Everything that runs on 32-bit should also run on 64-bit.

unfortunately I need 32 bits OS to run an old version of Windev 5, wich does not work on 64 bits OS :/

 

[Mecanik]

For a 32-bit OS, you need a 32-bit UEFI (same for 64-bit). It should be possible to build OVMF with 32-bit support. However, since the use cases are so limited we do not support that. If I may ask, why do you need the 32-bit version of Windows? Everything that runs on 32-bit should also run on 64-bit.

After spending an entire day trying to boot with the exact same problem... are you saying that OVMF does NOT SUPPORT x32 OS?

Please confirm... and if yes, update the documentation.