Yoga And Sd Card

In the Lenovo Ideapad Yoga laptop is a SD card slot but there are not default driver for that.

But you can simple install it with:

sudo yum install kmod-staging

And now you can load it with:

sudo modprobe rts5139

Or you can just reboot your laptop.

Please keep in mind that it don't work if you have secure boot on.

Nice Splash Screen

Just edit in /etc/default/grub the GRUB_CMDLINE_LINUX parameter and remove rhgb quiet.

GRUB_CMDLINE_LINUX="rd.luks.uuid=luks-3c9b6347-1d19-4191-af16-4c156d1e8252 rd.luks.uuid=luks-9c380ed4-cac0-4112-a406-17de8c5b96e1 rhgb quiet"

After that you need to rebuild your grub with something like this:

grub2-mkconfig -o /boot/grub2/grub.cfg

And now you have a fancy splash screen with text output.

Fedora And Mongodb

If I just follow the official instructions, I get an error everytime:

 systemctl status mongod.service
mongod.service - SYSV: Mongo is a scalable, document-oriented database.
   Loaded: loaded (/etc/rc.d/init.d/mongod)
   Active: failed (Result: timeout) since Sun 2013-09-08 11:26:11 CEST; 51s ago
  Process: 3166 ExecStart=/etc/rc.d/init.d/mongod start (code=exited, status=0/SUCCESS)
   CGroup: name=systemd:/system/mongod.service
           └─3174 /usr/bin/mongod -f /etc/mongod.conf

If you look at the error log, you will find something like this: PID file /var/run/mongo/mongod.pid not readable (yet?) after start. There is a bug report since 01 04 2013 https://jira.mongodb.org/browse/SERVER-9202. So the problem is that the default location to store the pid file is /var/run/mongodb/mongod.pid, but systemd looks at /var/run/mongo/mongod.pid.

To fix this, just change the location in the config file '/etc/mongod.conf': pidfilepath = /var/run/mongo/mongod.pid. My first thought was to create the directory '/var/run/mongo' and change the owner and group to mongod (chown mongod:mongod).

But on most modern systems /var/run is a tempfs file system so you need to create a config file in /lib/tmpfiles.d and add the config file echo “d /var/run/mongo 0755 mongod mongod” > mongo.conf.

##UPDATE It appears that the pid should be stored since Fedora 19 or 20 in /var/run/mongodb and not /var/run/mongo.

Publish With Github

If everything works as intended you can send push requests to our github repo and it'll get automagic deployed if we merge it.

Publishing from github is easy. You just need to set a small php page up which invokes a script to update the git repo and add the url of your php script in "web hooks" at github.

The php file:

$ cat update.php
<?php
	shell_exec('./update.sh');
?>

and the update script:

$ cat update.sh
#!/bin/sh
#the logfile
datestr=$(date +%Y%m%d_%H%M%S)
LOGFILE=/your/path/log_$datestr

#cd to your git repo
cd /home/username/blog/

#update ALL TEH SOURCE
echo git >> $LOGFILE
git pull >> $LOGFILE

#Load bash_profile for jekyll
. /home/username/.bash_profile

#build page
echo jekyll >> $LOGFILE
jekyll build -d /var/www/virtual/username/html >> $LOGFILE

This replace the post-receive git hook. And will do the same work.

Fancy File Upload Buttons

Everytime I build websites I feel pain when I need to build a file upload. Because of they look terribly and different in each browser I build a small example of a fancy upload button.

In this example you can see its font awesome for the icons and pure layout framework. You can easily replace the icons and layout framework. In that case you're using JQuery it's not hard to implement it. It uses JavaScript which can be a problem for some people.

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