Andrew Wippler's Sketchpad - Fedora

GnuCash mysql backend on Fedora

2024-12-16T19:37:30+00:00

I have been using GnuCash for personal finance since 2014. Two years ago, I switched over to a mysql backend because it was available in the flatpak. I never understood why the regular package on Fedora did not allow for opening a mysql database until today.</p>

On Fedora, GnuCash is bundled with weak dependencies. GnuCash does not need mysql support to run properly. It does not make sense to require mysql support for everyone, but if you want mysql support, here is how to enable it:</p>

Find out what GnuCash depends upon:</li> </ul>

sudo dnf repoquery --depends gnucash
</span>Updating and loading repositories:
</span>Repositories loaded.
</span>/usr/bin/perl
</span>dconf
</span>gnome-icon-theme
</span>gnucash-docs >= 5.9
</span>libaqbanking.so.44()(64bit)
</span>libboost_filesystem.so.1.83.0()(64bit)
</span>libboost_locale.so.1.83.0()(64bit)
</span>libboost_program_options.so.1.83.0()(64bit)
</span>libc.so.6(GLIBC_2.38)(64bit)
</span>libcairo.so.2()(64bit)
</span>libdbi-dbd-mysql
</span>libdbi-dbd-pgsql
</span>libdbi-dbd-sqlite
</span>...
</span># These three packages enable support for their respective DB
</span>
</span></code></pre>

Install the option you want</li>
</ul>
$ sudo dnf install -y libdbi-dbd-mysql
</span></code></pre>

Enjoy using the native GnuCash package to save to mysql.</li>
</ul>



Atom editor on Fedora
2016-03-18T15:00:07+00:00
The atom editor has quickly become my favorite IDE for working with web projects. I still use Vi/Vim for CLI stuff, but atom is the icon I click when I want a GUI program.</p>
It was becoming a little mundane to go to the atom website and download the new version to install. This is why package managers exist - so users don't have to visit your website to download a new update. A quick search at copr</a> yielded mosquito's repo of atom - success! Below is how to add the repo and keep atom updated for Fedora.</p>
sudo dnf install dnf-plugins-core
</span>sudo dnf copr enable mosquito/atom
</span>sudo dnf install atom
</span>
</span></code></pre>


How to fix Error: Transaction check error with dnf/yum
2016-02-08T15:00:06+00:00
When a dnf</code> or yum</code> process gets interrupted, you may get the below error:</p>
Running transaction check
</span>Transaction check succeeded.
</span>Running transaction test
</span>The downloaded packages were saved in cache until the next successful transaction.
</span>You can remove cached packages by executing 'dnf clean packages'.
</span>Error: Transaction check error:
</span>file /usr/share/doc/avahi-libs/README from install of avahi-libs-0.6.32-0.4.rc.fc23.i686 conflicts
</span>with file from package avahi-libs-0.6.31-43.fc23.x86_64
</span></code></pre>
When presented with Error: Transaction check error</code>, you are unable to install, update, or upgrade your system. The solution is to attempt to install the program (or download the files), locate them on your system, and manually update them using rpm.</p>
In the example above, I want to update avahi-libs</code> to a later version, but an older version still exists on my system. The dnf</code> process was interrupted before it could erase the older version. Hence, the error means manual intervention of the problem is required. To fix, one needs to locate the newer version and use the rpm</code> command to forcefully install the update. In other words, do the following:</p>
find /var/cache/dnf/ -iname avahi-libs-0.6.32* -type f
</span>rpm -Uvh --replacefiles /path/to/avahi-libs-0.6.32-0.4.rc.fc23.i686.rpm
</span></code></pre>
There is a good chance that the file you need is in /var/cache/dnf/</code> already and does not need to be downloaded from a mirror.</p>


Setting the I/O scheduler for a single disk on Fedora
2015-07-26T22:35:41+00:00
You can set your IO scheduler on-the-fly by echoing the scheduler you want into /sys/block/{DEVICE-NAME}/queue/scheduler</code>. This setting, however, does not persist across system reboots. The legacy method is to place this command in /etc/rc.local</code> or by placing an elevator variable in grub.cfg</code>.</p>
Beginning with Fedora 20, a better way of tuning your system has emerged: tuned</code>.</p>
tuned</code> is a daemon that monitors your system and updates it based upon the variables at that moment. For instance, it will scale back your network interface - reducing power consumption - when it is not in use and will return it to full throttle when you are downloading the latest Fedora ISO. Enabling tuned</code> on Fedora 22 is as simple as:</p>
sudo dnf install tuned
</span>systenctl enable tuned
</span>systemctl start tuned
</span></code></pre>
tuned</code> comes pre-installed with default profiles (listed by running tuned-adm list</code>). By default the IO scheduler is set for all disks on the system. Since this is not the behavior we intend, nor the result we want, we will have to create our own profile for tuned</code>.</p>
System profiles are stored in /usr/lib/tuned</code> and custom profiles are stored in /etc/tuned</code>. Creating a custom profile is as simple as finding the recommended for your system, copying it to a new profile, editing it, and applying it.</p>
sudo mkdir /etc/tuned/andrewwippler
</span>sudo cp /usr/lib/tuned/$(tuned-adm recommend)/tuned.conf /etc/tuned/andrewwippler/tuned.conf
</span>
</span></code></pre>
tuned.conf</code> has a simple structure:</p>
[NAME]
</span>type=TYPE
</span>devices=DEVICES
</span>setting1=value
</span>setting2=value
</span>...
</span></code></pre>
In the event of your NAME</code> being the same as the TYPE</code>, you can omit the type line. For example, a normal disk declaration looks like this:</p>
[disk]
</span># Comma separated list of devices, all devices if commented out.
</span># devices=sda
</span>alpm=medium_power
</span>
</span></code></pre>
Now all we have to do is append our declaration to /etc/tuned/andrewwippler/tuned.conf</code> for sda's elevator switch and enable it.</p>
[my_ssd_disk]
</span>type=disk
</span>devices=sda
</span>elevator=noop
</span></code></pre>
I can then enable my custom tuned profile by running tuned-adm profile andrewwippler</code>.</p>