For duplex scanning you can try the GUI application xscanimage provided with the Ubuntu package sane.
You can see there the options Scan Source: Automatic Document Feeder and ADF Mode: Duplex
EPSON provides too a very good GUI for scanning ADF in duplex iscan .
First, you need to edit the locale.gen file.
sudo vim /etc/locale.gen
Then looking for the language pack you need and remove the comment mark, for example, if I want to install zh_CN.GBK GBK zh_CN.UTF8, I just remove the # symbol in these lines, alternatively, you can also add your lines directly into the file.
This is the ...
I have had the same problem when I was installing apache web server on my digital ocean droplet. After waited a bit, I simply just stop the process and rerun the command. It shows the apache is already installed and it worked.
I hope it can still help.
This probably won't help for the original question. But, for those using newer versions of Ubuntu, the package firmware-ath9k-htc is available. Solved my wireless issue by simply installing it & restarting.
My system is an older MacBook Pro (around 2007 or 2008 I believe) with Ubuntu-MATE 19.04.
b:00.0 Network controller: Qualcomm Atheros ...
I faced the same problem. I activated the virtual environment
$ source bin/activate
after that it showed me the version of Django
There was no need of installing anything.
mamata@mamta-inspire-all:~/dodjango$ python -m django --version
/usr/bin/python: No module named django
mamata@mamta-inspire-all:~/dodjango$ django-admin --version
The solution is here at Reddit: How does Ubuntu allow mounting of internal block devices without authenticating?
BTW: I use linuxmint-mate 19.1 (tessa) and 18.3 (Sylvia) both LTS Releases - based on Ubuntu Bionic Package. I didn't test in ubuntu itself.
Just open as root the file/var/lib/polkit-1/localauthority/10-vendor.d/com.ubuntu.desktop.pkla and ...