Ubuntu-Mate for RPi image won't boot

I’ve tried downloading via direct and torrent and created the SD card in Linux and Mac using several methods and always get the same result:

—[ end Kernel panic – not syncing: VFS: Unable to mount root fs on unknown-block(179,2)

Holding the key during boot does NOT bring up Grub either…

Broken IMG ???

Also, I’m using a Pi 3 and have tried three different SD cards, different writers and the ISO I’m using is the latest available:

“ubuntu-mate-16.04.2-desktop-armhf-raspberry-pi.img”

Try this: https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=66134

You need to make sure that the “root=/dev/mmcblk0p2” is pointing at the correct device.

‘ls /dev/ | grep mmc’ should list them for you.

There should be no Grub on the pi image.

I found the fix: don’t use cheap SD card readers! The first brand name card reader/writer I tried worked the first time.