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Bug 1636759 - sage does not start: libSingular not found
Summary: sage does not start: libSingular not found
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: sagemath
Version: 29
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Paulo Andrade
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2018-10-07 12:43 UTC by pav
Modified: 2019-01-28 03:44 UTC (History)
7 users (show)

Fixed In Version: sagemath-8.3-2.fc29
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2019-01-28 03:44:34 UTC
Type: Bug
Embargoed:


Attachments (Terms of Use)

Description pav 2018-10-07 12:43:09 UTC
Description of problem:

When trying to run `sage` on Fedora 29:

$ sage 
Traceback (most recent call last):
  File "/usr/lib64/sagemath/local/bin/sage-ipython", line 9, in <module>
    from sage.misc.banner import banner
  File "/usr/lib64/python2.7/site-packages/sage/misc/banner.py", line 16, in <module>
    from sage.env import (SAGE_VERSION, SAGE_DATE, SAGE_VERSION_BANNER,
  File "/usr/lib64/python2.7/site-packages/sage/env.py", line 186, in <module>
    "libSingular not found--a working Singular install in $SAGE_LOCAL "
RuntimeError: libSingular not found--a working Singular install in $SAGE_LOCAL is required for Sage to work

The reason is that /usr/bin/sage contains

export SINGULAR_SO=/usr/lib64/libSingular-4.1.1.so

The Singular rpm package installed, as apparently determined by dnf
based on what `sagemath` requires is
Singular-libs-4.1.0p3-14.fc29.x86_64 

This Singular package only contains /usr/lib64/libSingular-4.1.0.so
I don't see Singular-libs 4.1.1 available in the repos.

Editing /usr/bin/sage and changing the SO name seems to fix it.

Version-Release number of selected component (if applicable):
sagemath-8.3-1.fc29.x86_64
Singular-libs-4.1.0p3-14.fc29.x86_64

How reproducible:
Appeared after upgrading from Fedora 28 -> Fedora 29 Beta
with dnf system-upgrade.

Steps to Reproduce:
See above.

Actual results:
`sage` does not start, fails with error.

Expected results:
`sage` should be able to start.

Comment 1 Thomas Wright 2018-10-15 11:33:33 UTC
I am also experiencing this error when trying to run `sage` on Fedora 29 Beta and can confirm that editing /usr/bin/sage as stated above fixes the issue.

Comment 2 Klaus Pedersen 2018-10-19 05:48:41 UTC
Yes, workaround works.

Funny though, there is already a non-functional 'fix' in .../site-packages/sage/eny.py +180:

   # library name changed from libsingular to libSingular btw 3.x and 4.x
    SINGULAR_SO = '/usr/lib64/libSingular-4.1.0.so'

Unfortunately, notebook() doesn't work. Bug 1640890

Comment 3 Martin Albion 2018-11-11 21:33:13 UTC
I just finished a clean install of Fedora 29.  Editing the Singular version from 4.1.1.so to 4.1.0.so resulted in sage launching successfully.  Additionally I needed to install python2-cypari2.

Comment 4 H.-P. Sorge 2018-11-14 23:24:06 UTC
Still fails to start sarge.


in:
/opt/SageMath/local/lib/python2.7/site-packages/sage/env.pyc

Line 182 + 184:
if not SINGULAR_SO or not os.path.exists(SINGULAR_SO):

changed to:
#_add_variable_or_fallback('SINGULAR_SO', SINGULAR_SO)
if not SINGULAR_SO or not os.path.isfile(SINGULAR_SO):

fixes it.

Comment 5 abaa123459 2018-12-31 06:02:50 UTC
I experienced the same issue and editing the /usr/bin/sage file fixed the issue. Thank you.

Comment 6 Fedora Update System 2019-01-19 21:23:49 UTC
sagemath-8.3-2.fc29 has been submitted as an update to Fedora 29. https://bodhi.fedoraproject.org/updates/FEDORA-2019-f51ce43c89

Comment 7 Fedora Update System 2019-01-20 02:34:01 UTC
sagemath-8.3-2.fc29 has been pushed to the Fedora 29 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2019-f51ce43c89

Comment 8 Fedora Update System 2019-01-28 03:44:34 UTC
sagemath-8.3-2.fc29 has been pushed to the Fedora 29 stable repository. If problems still persist, please make note of it in this bug report.


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