i just set up my RPi3B+ to boot from USB pendrive. It is SanDisk Cruzer Fit 8GB USB 2.0. It work fine. No real issues but the amber LED indicatior seems to behave wierd. Defiantely different than while using SD Card (the same .img file imported to pendrive as it was on SD Card). The SWAP is completely off in my case.
So... the amber LED which shows disk reads and writes in my undestanding i blinking alwats in the same pattern. It flashes very quickly 4 times then 2 second pause and agaian and again...
It does not idicate real drive access. Even if i am copying something to system drive it flashes like i described, not showing that the drive is really busy.
Anybody has solution to that issue? Or at leas anybody can confirm that his pendrives behaves the same way? What do you think about it guys?