On Tue, Aug 11, 2020 at 08:34:53PM +0200, Patrik Nilsson wrote: > Hi Greg, > > Can you provide kernel logs? Odds are the disk disconnects itself as it > > takes too much power or something. > udev-kernel logs can be found: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1886172 udev logs do not help, can you do, from a command line: sudo dmesg -c # clears the kernel log <do your testing> dmesg > kernel_log.txt and send us the kernel_log.txt file? > I have tested the usb to sata adapter directly connected to a computer and > connected to a externally powered usb hub. The bug behavior is the same. I bet the adapter can't handle the issue here, writing a lot of data to flash does take a lot of power. > One time when I tested the whole usb hub disconnected. I have a usb to > ethernet connected to it too. It vanished and appeared again. Doubt it is > power. The externally powered hub can deliver 4A, but I hope the usb to sata > only takes 2A. If the whole hub disconnected, that is a _huge_ hint it's a power issue, the operating system can not do that on its own. thanks, greg k-h
