Extremely long startup delays with cm3

[anssisaari]

I've just finished installing Debian on my CM3+ eMMC. At first I thought I can't boot this at all but I left it running and eventually found out things work but there some really long delays.

Timing goes like this:

• From initial menu to grub menu: six minutes
• From grub menu to installer start: 12 minutes

After installation, same six minutes to Grub menu. Booting to prompt another 15. System seems to work fine afterwards but these delays make the system pretty much unusable.