If you find yourself wanting to install ProxMox from their ISO image, and are stuck with SuperMicro hardware, you may notice that their iKVM often throws the video into 640×480, depending on your native local resolution. Not only that, but it sets minsize/maxsize to be the same- so you can’t resize the window!

Rather than give you a tutorial of installing ProxMox via Debian Jessie using a BIOS RAID, I figured I’d help with this, since more people have this issue.

First off, start the iKVM and set “Auto Window Resize” to true.

Boot into BIOS (it’s set to 800×600 on my device). Resize the window if it doesn’t automatically do so.

Disable “Auto Window Resize”. Boot into your virtual CD.

After booting into the ProxMox ISO/CD, press the letter ‘E’. This will take you into a mode to edit the GRUB command line.

Using the arrow keys, place the cursor in the line ABOVE “linux …”, and type:

gfxload=800x600x16,800x600

Then press the enter key. Finally, go to the end of the “linux …” line by pressing the down arrow, and then press ‘end’. Add

 vga=788 -- vga=788

- onto the end of this linux line, ensuring to keep the space above.

Now, press F10, and let it boot. Your iKVM and all data will be reported to the system as an 800×600 video mode.

Now you can actually see the GPL license and agree to the terms!

This can easily be altered to utilize 800×600/etc- whatever your session supports (changing the vga= modes accordingly)- but keep in mind that iKVM can not be larger or smaller than your existing usable screen size, and I strongly suggest you keep it smaller.

Happy Installing!