Proxmox VM boot from USB image
To boot from USB image in VM, such as USB image of
memtest86-usb.img, import the disk as hard disk using following command.
qm importdisk 100 memtest86-usb.img upool1
Add Unused disk into VM using Proxmox VM UI interface.
Change boot order to new hard disk first in VM Options.
Attach a raw image as a USB disk to the VM
Unable to boot from USB in VMware Fusion
Fusion reports error, and it can not connect to USB drive to boot.
Fusion does not support USB adapters for connecting displays to your virtual machines.
Note: I haven't tried to change UEFI mode to BIOS mode, maybe this is the cause.
Unable to connect a USB device to a virtual machine (2118442)
USB Device not detected by the virtual machine (57195)
Configuring the USB Controller and Connecting USB Devices