Tuesday, 23 March 2010

[FIX] Breezy apt-get update returns 404 not found

Today I logged into an old Ubuntu machine, and tried to install a program. However, running apt-get update came up with a whole bunch of "404 file not found" errors, although it was using the standard ubuntu repositories.

Turns out some time ago, the Ubuntu project took down the Breezy Badger repositories. After all, this is an old project. Thankfully there is a way you can update your breezy machines even without this repository. According to this thread, just change the lines "archive.ubuntu.com ..." to "old-releases.ubuntu.com ..." in your /etc/apt/sources.list or using the GUI in Synaptic/Adept.

More info here.

Friday, 5 March 2010

Google Calendar

Google Calendar is a really useful tool for managing time. I've created separate calendars for personal events, work, study, birthdays and more. All of these show up in an easy to navigate web interface, and I can choose to setup SMS reminders for important events.

Perhaps the most useful feature for me is the automatic synchronization with my Android phone. I can add an event to my phone on the go, and when I get back to the computer it will already be there on my calendar. This saves a lot of time and frustration on my behalf.

Another feature that is often overlooked but can be extremely powerful is the sharing features. If someone gives me permission to see their calendar, I can view it alongside my own, and even schedule meetings where all people are free, just like Outlook but in the cloud.

Theres too many features to write about them all, but it's such a useful tool that I highly recommend it to anyone having trouble managing their time. Especially if need to be able to access the same calendar from multiple locations.

in reference to: Google Calendar (view on Google Sidewiki)

Thursday, 4 March 2010

Mounting Filesystems by UUID - Ubuntu

Ubuntu 9.10 automatically mounts hard drives by UUID when it's installed. This means that if you insert a new hard drive, which changes all the /dev/sdxx numbers, your system will still function normally. Linux by examples has a good tutorial on common fstab commands for uuid.

To find all UUIDs:

ls -l /dev/disk/by-uuid/

To check the UUID for a known device:

sudo vol_id /dev/sda1

or this:

blkid /dev/sda1