How to update unshare package (unrecognized option '--fork')?

Question

I'm facing to an issue. I'm on Ubuntu Desktop 14.04.
The execution of a program fails with the error:

unshare: unrecognized option '--fork'

I found on the web two man pages for 'unshare' package:

http://linux.die.net/man/1/unshare (I have this one, in fact without --fork option)
http://man7.org/linux/man-pages/man1/unshare.1.html (with the --fork option)

This pakage is included in 'util-linux' package. I would like to know how to switch to the other 'unshare' in order to have the --fork option available.

I already tried to upgrade my Ubuntu, but unshare is not upgraded.

Any ideas ?

Thanks in advance.

The [Ubuntu manpage](http://manpages.ubuntu.com/manpages/utopic/en/man1/unshare.1.html) lists `--fork`. How did you install it? — muru, Feb 16 '15 at 14:35
I'm on a fresh install of Ubuntu 14.04.1 LTS, unshare si provided inside, I don't install anything else... — segalaj, Feb 16 '15 at 14:37
Hmm. Looks like the option was only added in 14.10. You may have to use a PPA. — muru, Feb 16 '15 at 14:38

score 2 · Accepted Answer · edited Apr 13 '17 at 12:24

2

You can try this PPA by Ivan Larionov who built a newer package from Debian experimental to try and fix this bug. I haven't tested it, so caveat emptor. See What are PPAs and how do I use them? if you don't know what a PPA is.

edited Apr 13 '17 at 12:24

Community

1

answered Feb 16 '15 at 14:45

muru

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the ppa solved it for me as well, running a pretty fresh install of Ubuntu 14.04.2 LTS – SlimJim Apr 17 '15 at 21:53

How to update unshare package (unrecognized option '--fork')?

1 Answers1