and you can install PriceBlink for iPad by going here:

http://www.priceblink.com/priceblink-for-ipad

For Mac users the local storage file can be found in:

/Users/YOUR_USERNAME/Library/Application Support/Google/Chrome/Default/Local Storage

Within that folder you’ll see a bunch of files. To locate the file you want to delete you’ll need to find your extension’s unique identifier. This can be done by opening the Extensions tab in Chrome. For Mac users this is under Window > Extensions. Once you locate your extension simply click the arrow icon next to the extension name to expand details. You’ll notice an ID field that contains the extensions’s unique identifier. Now that you have the identifier you should be able to locate the local storage file in the folder I listed above. It will be of the format:

chrome-extension_[EXTENSION_ID_GOES_HERE]_0.localstorage

Simply delete this file and restart Chrome. The first time your extension reads from local storage you should see that your items are undefined and the first time you write to local storage the file will be created.

I know this isn’t the most elegant way to solve the problem so if you have any better alternatives then please post in the comments below.

Also, clearing browsing data in Chrome’s preferences does not clear local storage objects for extensions. That’s a good thing.

http://www.mongodb.org/display/DOCS/Building+for+Linux#BuildingforLinux-Ubuntu9.04and9.10

To make this work you need to install several dependencies as described in the article above. You need to update your /etc/apt/source.list from:

deb http://archive.ubuntu.com/ubuntu/ jaunty main restricted universe
deb-src http://archive.ubuntu.com/ubuntu/ jaunty main restricted universe

deb http://security.ubuntu.com/ubuntu jaunty-security main restricted universe
deb-src http://security.ubuntu.com/ubuntu jaunty-security main restricted universe

to:

deb http://old-releases.ubuntu.com/ubuntu/ jaunty main restricted universe
deb-src http://old-releases.ubuntu.com/ubuntu/ jaunty main restricted universe

deb http://old-releases.ubuntu.com/ubuntu jaunty-security main restricted universe
deb-src http://old-releases.ubuntu.com/ubuntu jaunty-security main restricted universe

Note the old-releases which tells Ubuntu to pull packages from the old repos. After making this update you need to run:

sudo apt-get update

and then you should be able to follow the MongoDB installation process above.

Initially I used Terminal to mv /Users/db_old to /Users/db but this called all sorts of problems with my apps not loading not to mention other hassles. After doing a bit of Googling I found out this was possible by following these steps:

http://support.apple.com/kb/ht1428

The Caveat was that the link to “Enable Root User” in this article was not applicable for my setup. I’m not sure that will be your case, but if it is then be sure to reference this article:

http://www.macosliontips.com/tips/enable-root-account-in-mac-os-x-lion.html

After enabling the root user I was able to proceed with the steps in the Apple knowledge base article above. I created a new account with a short name of db (my original short name) and then deleted my old account with short name of db_old. When I rebooted and logged into the db account I verified that everything was working properly.

ftp://ftp.mozilla.org/pub/mozilla.org/firefox/releases/

I recently needed Firefox 4.0 for testing an add-on and was able to use the link above to download it.

datadir = /mnt/mysql

I restarted MySQL and noticed the following error in the log file:

/usr/sbin/mysqld: Can’t find file: ‘./mysql/plugin.frm’ (errno: 13)
111012 1:10:01 [ERROR] Can’t open the mysql.plugin table. Please run mysql_upgrade to create it.
111012 1:10:01 InnoDB: Initializing buffer pool, size = 8.0M
111012 1:10:01 InnoDB: Completed initialization of buffer pool
111012 1:10:01 InnoDB: Operating system error number 13 in a file operation.

MySQL wouldn’t start so I scratched my head for a bit, did some Googling, and discovered AppArmor on Ubuntu. It turns out that AppArmor restricts the capabilities of any program that has a profile configured. MySQL falls into this category.

So I updated the AppArmor profile for MySQL. This file is located in:

/etc/apparmor.d/usr.sbin.mysqld

You’ll see a couple lines that look like:

/var/lib/mysql/ r,
/var/lib/mysql/** rwk

I changed those to:

/mnt/mysql/ r,
/mnt/mysql/** rwk

and restarted AppArmor via:

sudo /etc/init.d/apparmor restart

Then I started MySQL and was good to go.

/Users/db/_dev/nodejs/wscript:232: error: could not configure a cxx compiler!

which looked like this:

It turns out that after upgrading to OS X Lion that my g++ and c++ compilers were no longer working. Instead of digging into the root cause I decided to upgrade to Xcode 4.1.1 from the Mac App Store. Unfortunately, this was a 3.1 GB download so I had to wait a bit before I could continue with my Node.js install.

After Xcode was downloaded the App Store showed that it was installed as you can see here:

But unfortunately that wasn’t the case. The file had only been downloaded and not installed. I had to use Spotlight to locate the “Install Xcode” binary:

After installing Xcode 4.1 I was finally able to configure and make Node.js. Now on to bigger and better things. I hope this helps those who run into the same problem of installing Node.js on OS X Lion.

I recently became a new pool owner and had no idea of some of the costs associated with pool ownership. Let’s take chlorine tables for example. I bought a 20 lb bucket of tablets at my local pool store for $70 this past week. Anyone that owns a pool will most likely tell me I got ripped off. Aside for the convenience factor of buying local, you’re absolutely right. But time was of the essence and I didn’t have time to order them online and wait a few days for them to arrive at my door.

Moving forward I’ll be buying chlorine tablets online and with the help of my trusty comparison addon, PriceBlink. I just searched for the same brand/size of tablets that I currently use and ended up on the Walmart site. Although Walmart didn’t have pricing for my area, PriceBlink told me I could get a 37.5 lb bucket of HTH tablets for $99.74.

After doing some of my own Googling I found them for $20 more at Capitol Supply. That’s a no brainer. Now I realize that shipping comes into play here, but the nice thing is that PriceBlink tells me the shipping cost of items or at least let’s me know there’s a shipping fee by including “plus shipping” in the price menu.

After clicking the lowest price I was taken to a nifty site called Ron’s Home and Hardware:

When it comes time to buy my next bucket of chlorine tablets I’m glad to know PriceBlink will be around to give me peace of mind. PriceBlink helps me:

• Find the best deals on mainstream products
• Fine the best deals on obscure projects like chlorine tablets
• Introduces to nifty online retailers such as Ron’s hardware

The next time you consider buying ANYTHING online you should install the PriceBlink addon. It’s completely free and provides price comparison for Google Chrome, Mozilla Firefox, Apple Safari, and Internet Explorer. If you want to see PriceBlink in action then check out the video below. Enjoy!

‘xterm-256color’: unknown terminal type.

I knew something was up because top has always worked for me previously. After searching around a bit I stumbled across a forum post that mentioned this was a problem after upgrading to Mac OS X Lion (which I recently did). The answer was quite simple and consists of installing the ncurses-term package. Since my VM runs Ubuntu I used apt-get to install it:

sudo apt-get install ncurses-term

Everything is now back in working order. Hope this helps.

For testing he needed a way to change this variable outside the extension to exercise different test cases. The goal was to change the variable and run the Chrome extension to see if it behaved as expected. This was accomplished with the following steps:

1. Download Mike Titlebaum’s nifty SQLite database management tool http://saxmike.com/MySoftware/MySoftware.asp?Menu=MYSOFTWARE

2. Open the localStorage database using this tool. The database is actually a file that exists in the user data directory. For Mac users this is located at ~/Library/Application Support/Google/Chrome/Default/Local Storage. The file will be named something like chrome-extension_[Chrome Extension ID]_0.localStorage. For Windows and Linux you can reference this link.

3. To access this file in Mike’s tool you need to “Connect” and navigate to the file in the file browser. Once the file is opened you need to select the “ItemTable” table. You should see a list of key/value pairs underneath the table.

4. Simply click the key/value you want to change and enter the new value. The new value will automatically update after you hit the enter key.

5. Restart Chrome and test the extension with the changed value.

The alternative was to create a “debug” mode for the extension that would allow the variable to be changed, but for the sake of time this was the easiest path to accomplish the task.