[tahoe-lafs-trac-stream] [tahoe-lafs] #1635: 'crypto for PB is not available' error from bin/tahoe on Fedora due to failure to find libcrypto.so.1.0.0; goes away after 'make clean' and second build

[tahoe-lafs]

#1635: 'crypto for PB is not available' error from bin/tahoe on Fedora due to
failure to find libcrypto.so.1.0.0; goes away after 'make clean' and second
build
----------------------------------+---------------------------
 Reporter:  davidsarah            |          Owner:  somebody
     Type:  defect                |         Status:  new
 Priority:  major                 |      Milestone:  undecided
Component:  packaging             |        Version:  1.9.0
 Keywords:  openssl linux fedora  |  Launchpad Bug:
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 {{{
 (16:00:04) tcatm: hey. I have some trouble running tahoe-lafs on fedora:
 exceptions.RuntimeError: crypto for PB is not available, try importing
 foolscap.crypto and see what happens
 (16:10:19) davidsarah: tcatm: is that error from running 'setup.py build',
 or 'bin/tahoe', or using an operating system package of tahoe?
 (16:11:11) tcatm: bin/tahoe start ... using the latest tarball from the
 download page
 (16:12:48) davidsarah: which version of python?
 (16:12:56) tcatm: 2.7
 (16:14:59) davidsarah: please tell me the output from:
 PYTHONPATH=`pwd`/support/lib/python2.7/site-packages python -c "import
 foolscap.crypto; print foolscap.crypto"
 (16:16:16) tcatm: <module 'foolscap.crypto' from '/usr/lib/python2.7/site-
 packages/foolscap/crypto.pyc'>
 (16:16:56) davidsarah: what about: bin/tahoe --version-and-path
 [see attachment]

 (16:20:11) davidsarah: thanks
 (16:21:23) davidsarah: this is the problem:
 (16:21:23) davidsarah: pyOpenSSL: None [(<type 'exceptions.ImportError'>,
 'libcrypto.so.1.0.0: cannot open shared object file: No such file or
 directory', ('/home/tahoe/allmydata-tahoe-1.9.0/support/lib/python2.7
 /site-packages/pyOpenSSL-0.13-py2.7-linux-x86_64.egg/OpenSSL/__init__.py',
 36, '<module>', 'from OpenSSL import crypto'))] (None),
 (16:22:22) davidsarah: it appears that pyOpenSSL can't find the OpenSSL
 shared lib it is linked against
 (16:22:33) davidsarah: I've seen that problem before recently. zooko?
 (16:24:09) davidsarah: if there is an operating system package of
 pyOpenSSL for fedora, installing that (and doing 'python setup.py build'
 again) would probably fix it
 (16:24:42) davidsarah: but we should try to understand why the pyOpenSSL
 egg it found by default didn't work
 (16:25:30) davidsarah: can you do 'make clean' and then paste the full
 output of 'python setup.py build'?
 (16:25:52) tcatm: pyOpenSSL is installed, but I only got a libcrypto.so
 (16:26:01) davidsarah: ah
 (16:26:54) davidsarah: if you symlink 'libcrypto.so.1.0.0' in the same
 directory to 'libcrypto.so', does it work then?
 (16:27:36) tcatm: sounds like that could break easily on the next upgrade
 (16:27:59) davidsarah: it could, but I'm just trying to verify a
 hypothesis for the cause of the error
 (16:28:40) tcatm: hrm, make clean and running setup.py build seemed to
 have fixed the problem. strange :)
 (16:28:47) davidsarah: sigh
 (16:28:52) davidsarah: that is annoying
 (16:29:23) tcatm: yep. thanks for helping, though :)
 (16:29:35) davidsarah: I will file a ticket anyway. thanks for reporting
 the problem
 (16:31:12) davidsarah: mind if I include your paste above? I don't think
 it has any sensitive paths
 (16:32:19) tcatm: no problem. I've already checked it for sensitive
 information
 (16:34:52) davidsarah: which version of Fedora?
 (16:40:25) tcatm: 14
 }}}

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Ticket URL: <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/1635>
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