Comment 99 for bug 1886148

Lubuntu Groovy desktop amd64 daily of 20200913 fails to boot with "isolinux.bin missing or corrupt"
error when booting in BIOS mode.

Tested 3 laptops for BIOS boot - all failed but booted normally in UEFI and UEFI+secure boot modes. USB media created with "Startup Disk Creator and/or sudo dd bs=4M oflag=sync status=progress of=/dev/sda if=groovy-desktop-amd64.iso

The machines used :
Dell [Latitude] 7280
Dell [Inspiron] 3521
Acer [Aspire] E3-111-P60S

Also tested BIOS boot in VirtualBox on these 2 machines - both successful

Dell [Optiplex] 7010
InWin BL641 i5-10400

So far I have seen no failures when booting BIOS mode in VirtualBox.