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zeromq and pyzmq were moved to the new git layout at Sage 6.3 release, see trac ticket 16455.

So, if you want to install them for 6.2, you have to put a direct URL for the spkg that belong to the archive, e.g.

sage -i http://old.files.sagemath.org/spkg/archive/pyzmq-2.1.11.p1.spkg
sage -i http://old.files.sagemath.org/spkg/archive/zeromq-3.2.0.p0.spkg

Another possibility is to move to 6.3 and try with the usual command. Since there have been a lot of changes in the management of mirrors, please tell us if the options you tried are still working.

By the way, i am developping and maintaining Sage Debian Live:

http://sagedebianlive.metelu.net/

It is a huge key (3.1GB), i do this on purpose since i want the key to allow a pleasant GNU/Linux experience in places without internet connection.

I once made a live CD with Sage (with the same build system), that is a live system that fits into 700MB ! The trick is to do make micro_release to strip binaries and to use less modules (e.g.do not ship softwares such as LibreOffice). I do not maintain such live system because i do not see the benefit, but it is doable if needed. Emil Widmann had plans to maintain such a minimal live system (based on Sage Debian Live) but i guess he is unfortunately not working on this anymore, see https://github.com/emilwidmann/Debian-light-builder

If you want to have a small live system with Sage, or if some feature are missing in Sage Debian Live, please do not hesitate to tell about this, so that we could work together on making this happen. The way that key is built is very modular and configurable (see the config/ and modules/ directories in the source code), so it it very easy to adapt to most desires.

Do not hesitate to contact me and join the mailing-list if you are interested.

zeromq and pyzmq were moved to the new git layout at Sage 6.3 release, see trac ticket 16455.

So, if you want to install them for 6.2, you have to put a direct URL for the spkg that belong to the archive, e.g.

sage -i http://old.files.sagemath.org/spkg/archive/pyzmq-2.1.11.p1.spkg
http://old.files.sagemath.org/spkg/archive/zeromq-3.2.0.p0.spkg
sage -i http://old.files.sagemath.org/spkg/archive/zeromq-3.2.0.p0.spkg
http://old.files.sagemath.org/spkg/archive/pyzmq-2.1.11.p1.spkg

Another possibility is to move to 6.3 and try with the usual command. Since there have been a lot of changes in the management of mirrors, please tell us if the options you tried are still working.

By the way, i am developping and maintaining Sage Debian Live:

http://sagedebianlive.metelu.net/

It is a huge key (3.1GB), i do this on purpose since i want the key to allow a pleasant GNU/Linux experience in places without internet connection.

I once made a live CD with Sage (with the same build system), that is a live system that fits into 700MB ! The trick is to do make micro_release to strip binaries and to use less modules (e.g.do not ship softwares such as LibreOffice). I do not maintain such live system because i do not see the benefit, but it is doable if needed. Emil Widmann had plans to maintain such a minimal live system (based on Sage Debian Live) but i guess he is unfortunately not working on this anymore, see https://github.com/emilwidmann/Debian-light-builder

If you want to have a small live system with Sage, or if some feature are missing in Sage Debian Live, please do not hesitate to tell about this, so that we could work together on making this happen. The way that key is built is very modular and configurable (see the config/ and modules/ directories in the source code), so it it very easy to adapt to most desires.

Do not hesitate to contact me and join the mailing-list if you are interested.