Fix SQLite3 dependency issue for dnf

Luxing Huang — Fri, 26 Feb 2016 18:48:02 +0000

Recently when I did a dnf update I saw broken package for sqlite on my Fedora 23. Then I attempt to re-install that by removing it.

rpm -e --nodeps sqlite

Then shit hit the fan.

When I then try to run rpm or dnf, both giving me errors.

dnf gave me:

Traceback (most recent call last):
  File "", line 1, in 
  File "/usr/lib64/python3.4/sqlite3/__init__.py", line 24, in 
    from dbapi2 import *
  File "/usr/lib64/python3.4/sqlite3/dbapi2.py", line 27, in 
    from _sqlite3 import *
ImportError: File not found

And RPM gave me this error:

error: Failed to initialize NSS library

So rpm and dnf could not install packages. With a little searching around, I eventually figure out a way.

Step 1: Download sqlite3 from https://www.sqlite.org/download.html
Download the autoconf version of sqlite3 source code.

Step 2: compile. You need gcc and other tools. You better have this before this incident!

./configure && make

Step 3: Install those libs to /usr/local/lib

make install

Step 4：Using DNF to install.

LD_LIBRARY_PATH=/usr/local/lib dnf --best install sqlite

Should work.

Install missing LaTeX styles and definitions

Luxing Huang — Wed, 25 Nov 2015 21:29:48 +0000

When I was compiling my report, some files are missing:

! Package fontenc Error: Encoding file `eu1enc.def' not found.

An interesting installation of relatex packages is, you can install the missing files by providing this command:

dnf install 'tex(eulenc.def)'

It is benefited from RPM’s provides tag, documented here.
Credit goes to @vtrefny on Ask Fedora.

dnf – Luxing Huang

Fix SQLite3 dependency issue for dnf

Install missing LaTeX styles and definitions