No /proc/sys/kernel/hostname on Bash on Ubuntu on Windows

[nolanlawson]

On Bash on Ubuntu on Windows (i.e. Windows Subsystem for Linux), I'm unable to use Hub because it tries to access /proc/sys/kernel/hostname which sadly doesn't exist (there's a /bin/hostname, but dunno if that helps).

Doing an operation like e.g. hub issues and attempting to log in results in:

open /proc/sys/kernel/hostname: no such file or directory

Steps to repro:

1. Install WSL on Windows 10 RS1 (aka Anniversary Update)
2. Do

sudo add-apt-repository ppa:cpick/hub
sudo apt-get update
sudo apt-get install hub

3. Run hub clone or hub issues or some other command that brings up the login screen
4. Log in
5. See the error

Related: microsoft/WSL#562

[mislav]

Thanks for reporting! Which hub version is installed from cpick/hub?

[nolanlawson]

git version 1.9.1
hub version 2.2.1

[Bakudankun]

same here with:

git version 1.9.1
hub version 2.2.4

[mislav]

I guess we could make the hostname lookup non-fatal if it fails? The hostname is only used to name your Personal Access token like hub for [email protected]. Would the OS name be an acceptable fallback? E.g. "hub for Windows", "hub for OS X", etc.

[nolanlawson]

This has been fixed in BashOnWindows itself. Closing the issue. microsoft/WSL#562