Hello. A while ago, I successfully installed Ubuntu MATE 20.04 on my Raspberry Pi and used it for ROS for a while. Then, I decided to upgrade to 22.04 by flashing it into the card and, after some issues with compatibility, I want to go back to 20.04. however, I just can't get it to boot correctly! I've tried many different eeprom versions. The ones from 2024 and 2020 just give me a black screen, with the light blinking four times slower then four times faster. Other eeprom versions, like from 2023 or 2022, give me a "this board requires newer software" screen, which says that start4x.elf and fixup4x.dat are incompatible. I've tried to replace just those files with the ones from the firmware repo on GitHub, to no avail. Replacing all of the start*.elf and fixup*.dat files actually leads to the Pi booting, but then the Ubuntu installer crashes, apparently while configuring the keyboard. I'm using the same SD card, the same power supply and the same board as when it was working. Also, it has worked with other OSs, as i've used Raspberry Pi OS to upgrade and downgrade the eeprom. Here is an image of the aforementioned screen:
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Statistics: Posted by Flamethrower — Tue Jul 16, 2024 9:09 am — Replies 0 — Views 24