How can I install Maglev with rvm on Mac OS X Lion?

Question

I am trying to install Maglev on Mac OS X Lion with rvm, but running

rvm install maglev

as instructed on the github page only yields a 404 error:

curl: (22) The requested URL returned error: 404
ERROR: The requested url does not exist: 'http://glass-downloads.gemstone.com/maglev/MagLev-26852.Darwin-i386.tar.gz'

which does not seem too helpful, as it just points out that the respective file does not exist on the gemstone server. Google does not seem to know about this, so I thought about asking a question here. However, before doing so I tried some more and and got a little further running

 rvm install maglev-head

as mentioned in some blog posts. This finally finds an appropriate file, downloads a bunch of things and starts to compile. It starts to look really well at a point where it says

 Installing maglev to /[user-dir]/.rvm/rubies/maglev-head

in green, but unfortunately it does not get much further. The installation hangs after saying

Creating default 'maglev' repository.
Generating maglev HTML documentation
Generating smalltalk FFI.

or at least it takes forever (more than 30 minutes) without saying anything.

Stopping the installation at this point still looks promising giving me

$ rvm list

rvm rubies

   maglev-head [ x86_64 ]

but unfortunately

rvm use maglev-head

results in

startstone[Info]: Starting Stone repository monitor 'maglev'.

startstone[Error]: Stone process (id=61119) has died.
startstone[Error]: Examine '/[user-dir]/.rvm/rubies/maglev-head/log/maglev/maglev.log' for more information.  Excerpt follows:

without displaying an excerpt and even without stopping. Actually the log file does exist and has a few error messages, the most telling seems to be

GemStone is unable to open the file !TCP@localhost6#dbf!/[user-dir]/.rvm/rubies/maglev-head/data/maglev/extent/extent0.ruby.dbf

but the directory does exist, it would just be the file that is missing, and I would expect the server to create that one on an new image. Still, the situation does not look too bad as i get

which irb

giving me

/[user-dir]/.rvm/rubies/maglev-head/bin/irb

but when I try to start up irb I get

maglev-ruby: [Error] The MagLev server "maglev" is not running.
To fix this run "rake maglev:start" before running maglev-ruby.

but if I call the rake task as instructed I again get

maglev-ruby: [Error] The MagLev server "maglev" is not running.
To fix this run "rake maglev:start" before running maglev-ruby.

putting me in a recursive causality loop. Trying to start the maglev server by hand using

 maglev start

as I did on a previous installation using the shell scripts does not work either, giving me

 startstone[Info]: Starting Stone repository monitor 'maglev'.

 startstone[Error]: Stone process (id=61400) has died.
 startstone[Error]: Examine '/[user-dir]/.rvm/rubies/maglev-head/log/maglev/maglev.log' for more information.  Excerpt follows:

again without displaying an excerpt and hanging.

Any help would be appreciated as Maglev looks like a really promising piece of infrastructure.

Answer 1

You need to do "rvm get head" first; I can see it was looking for MagLev-26852.Darwin-i386.tar.gz, which was for an older version both of MagLev and of RVM.

I'd do an "rvm remove maglev; rvm install maglev" It shouldn't take more than a few minutes then to build once it's downloaded.