esptool on virtual box

[uraich]

I am using MicroPython on Ubuntu since quite some time without any problems. Now I am forced to give it a try on Windows via virtual box. Everything seems to work fine except esptool.

esptool.PNG (31.38 KiB) Viewed 1501 times

It is not a hardware problem as esptool works fine with the ESP board on Ubuntu and it also works on the Windows side. Looks like there this some problem with DTS DTR when passing from the virtual box to the Windows driver. Does anybody have experience with this type of problem?
minicom and thonny also work ok from within the virtual box.

[Roberthh]

Can you switch manually to boot loader mode by connecting GPIO0 to GND and pushing reset?

[uraich]

Yes, that works. So the problem is that DTS DTR are not correctly passed from virtual box to the Windows driver. Putting the short for flashing Micropython from time to time is ok for me.
Thanks Robert