I installed a DragonFly snapshot on a Lenovo x220 last night. I went for a EFI install, even though the x220 has a “Legacy” option. When I booted, it looked like this:
It successfully booted, but once it hit the kernel load, it started printing to the top of the screen in that lovely repeating pattern you see.
Matthew Dillon helpfully pointed out that the DRM and i915 modules needed to be loaded. Hitting ‘9’ during the bootloader countdown got me to a prompt where I could type:
drm_load="YES" i915_load="YES"' kern.kms_console=1 menu
Which brought me back to the boot menu, but this time it loaded those additional modules to support the Intel video chipset – and it worked!
These lines can go in /boot/loader.conf for permanent use.
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Author: Justin Sherrill
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