Category Archives: Mac

OS X – Fail to start MySQL server which is installed by Homebrew

After i reboot my OS X, i find that i couldn’t start the MySQL server and it throws the following error:

hatuey:5.6.19 yingkityuen$ mysql.server start
Starting MySQL
. ERROR! The server quit without updating PID file (/usr/local/var/mysql/


Go to the above folder and delete the mysql error log which is ended with .err. In my case, i executed the following command:

hatuey:5.6.19 yingkityuen$ rm /usr/local/var/mysql/hatuey.local.err

Where hatuey is my Mac machine name.

This should fix the problem.

Done =)

Reference: Mahdi Yusuf – MySQL ‘The server quit without updating PID file’

LibreOffice – Batch convert files to PDF

LibreOffice supports PDF conversion. What you need to do is to open the document in LibreOffice and click the Export as PDF… option under the file menu list. It’s good and simple to convert a single document but quite tedious if you have more files.

For batch conversion, we need to make use of the LibreOffice command in terminal.

1. Go to the directory which contains the source files.

2. Execute the following command to convert ALL files which ends with .odt into .pdf.

soffice --invisible --nologo --convert-to pdf *.odt

Continue reading LibreOffice – Batch convert files to PDF

rEFIt – Boot Manager for Mac

Finally i get the Windows 7 installed on the Mac Mini.


Then i tried to do the same for the MacBook but i couldn’t find the usb drive on the boot menu. After asking Google, it is found that for those Mac machines which are equipped with the super drive (dvd drive), they cannot be booted by external devices. I try to install the rEFIt boot manager but it still doesn’t work.

Finally i have to use the Boot Camp to install the Windows 7, but i have to find a DVD Windows 7 installer. Anyway, the Boot Camp is really cool and all drivers are automatically installed.

Done =)

Windows Drivers for Mac machine

Recently i have tried to install Windows 7 in a Mac Mini and a MacBook. I have a Window 7 installer in a bootable usb. Just keep pressing the option key on startup and you could select the boot device in the boot menu. It works fine for the Mac Mini and the Windows 7 is installed without any problem.

But after the installation, i found that many drivers are missing. Finally i found a blog post written by Chris F Carroll. You can find all the details about getting the drivers from the Boot Camp package in that post so I am not going to repeat it here.


Done =)

Mac – Generate SSH Keypair

Prior to the topic about the SSH keypair, i would like to let u know that the BeansTag module is already submitted to and now undergoing the approval process. BeansTag is a light-weight and user friendly SEO tool which help you setting the meta attributes as well as page title. It is also multilingual supported. Visit the BeansTag project page to get more ideas or even try it with your Drupal 7.

Before i could start working with the Git repository hosted in, i have to create a SSH keypair and add it in my Drupal account profile. Actually i have done the similar task before but that is for Windows. For your reference, you can refer to the following post.

Continue reading Mac – Generate SSH Keypair