Hi Fourdee,
This is the Pi3 that boots from a USB flash drive - no SD card. After upgrading to v131 it booted but I couldn’t get dietpi-software up.
A look in fstab revealed the reason for this and a quick edit and I am running again.
The offending line was
/dev/sda1 /mnt/usb_1 auto defaults,noatime,nofail,x-systemd.automount 0 0
And in my setup /dev/sda1 was mounted as /boot - but this line had disappeared.
All fixed but this could catch people out 
John
All fixed but this could catch people out
Hi John,
Yep, apologies for that.
We are looking at avoiding similar issues with updates in the future: https://github.com/Fourdee/DietPi/issues/525
Hi Fourdee,
The disclaimer looks like a good idea. Can I make a couple of suggestions from a user perspective?
If a USB drive is mounted by UUID it likely means there is a specific reason for this and it should be left alone?
Generic /dev/sda type entries in fstab are less likely to be critical.
Secondly if any changes are made to fstab during an update a backup file could be generated?
Again thanks for doing all you do it is appreciated.
John
Hi John,
Yep, all good suggestions, taken on board 