i was trying to install flowvisor on debian jessie. but i get the following error:
The following packages have unmet dependencies: flowvisor : Depends: openjdk-6-jre-headless which is a virtual package. But i have these package installed already:
default-jre-headless openjdk-7-jre-headless libjpeg8 so what should i install next? Thanks!
As indicated by yaegashi, the package depends on openjdk-6-jre-headless which isn't available in Debian Jessie. It is available in Debian unstable, so you could install it from there if you really want to, but the suggestion to request a new package of flowvisor is better (OpenJDK 6 is old and I don't know how good its security support is).
In the meantime, you can use equivs to build a fake package which pulls in openjdk-7-jre-headless instead:
# as root apt-get install equivs # as yourself equivs-control openjdk-6-jre-headless.control Edit the resulting openjdk-6-jre-headless.control file so it contains the following:
### Commented entries have reasonable defaults. ### Uncomment to edit them. Source: openjdk-6 Section: java Priority: optional # Homepage: <enter URL here; no default> Standards-Version: 3.9.6 Package: openjdk-6-jre-headless Version: 7u79-2.5.5-1 Maintainer: Your Name <[email protected]> Depends: openjdk-7-jre-headless Architecture: all # Copyright: <copyright file; defaults to GPL2> # Changelog: <changelog file; defaults to a generic changelog> # Readme: <README.Debian file; defaults to a generic one> # Extra-Files: <comma-separated list of additional files for the doc directory> # Files: <pair of space-separated paths; First is file to include, second is destination> # <more pairs, if there's more than one file to include. Notice the starting space> Description: OpenJDK Java runtime, using Hotspot JIT (headless) Minimal Java runtime - needed for executing non GUI Java programs, using Hotspot JIT. . The packages are built using the IcedTea build support and patches from the IcedTea project. . This dummy package depends on OpenJDK 7. (replacing the values in the Maintainer: line). Then generate the dummy package:
equivs-build openjdk-6-jre-headless.control and install it:
# as root dpkg -i openjdk-6-jre-headless_7u79-2.5.5-1_all.deb You should then be able to install flowvisor. If it doesn't use the openjdk-6 paths explicitly it should work fine.
The package explicitly depends on openjdk-6-jre-headless from openjdk-6 which is removed from the Debian jessie release. Supposedly it has to depend on default-jre-headless instead to fix the problem.
Debian doesn't have the official package for flowvisor. It's likely for you to retrieve from the 3rd party repository mentioned here. You could modify and rebuild the source package for jessie by yourself, or contact the package maintainer to ask for that.
