October 2009 Archives

Dell Inspiron Mini 10v + Gentoo

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I recently bought a $300 Dell Inspiron Mini 10v and loaded Gentoo on it. I thought it might be a good idea to give an account of my experiences.

Purchasing. Buying from Dell directly was kind of nice, as they allow you to custom select what components you want, such as whether you want an SSD or a regular hard drive, how much RAM you want, etc. Being a poor collegian, I went pretty much with all the cheapest options. Shipping seemed pretty good to me -- something like $10 for second-day. And I was able to purchase it with Ubuntu preloaded, which is a little less expensive than the Windoze option. (Though of course I immediately installed Gentoo.)

Hardware. I was overall quite satisfied with what I got. The biggest plus, and the ultimate reason I finally decided on a Dell Mini, is that it is the quietest portable computer I've ever owned. I purchased the regular hard drive, and so I can hear the hard drive spinning sometimes if I hold my ear really close. But since the Mini 10v does not use a fan for cooling, it is otherwise completely silent. Also for what I paid, I thought the specs were good -- 1.6 Ghz Atom dual core, with 1 GB of memory, plus the wireless card, three USB ports, a video port, and about three hours of battery life (at moderate CPU usage.) The keyboard was fairly comfortable for its size, and the 10'' screen was workable for me.

The only two complaints I have as far as hardware: For one, the touchpad is worthless. Somehow they tried to combine the click buttons and the touch surface into one seamless unit, and it did not work at all.  So I carry along a portable USB mouse.

Second, the top cover picks up fingerprints very easily. This doesn't affect function at all, but it is kind of embarrasing when you are showing off your Linux netbook to all your Windoze buddies.

Installing Gentoo. This process overall went great. I installed Gentoo using the minimal install disk, all from the command line. I used full hard disk encryption plus LVM, and I had no troubles there. I'm running Xfce4 for the desktop, and that works great for me.

I don't recall needing any special kernel options that weren't already selected by default, aside of course from my encryption and lvm options. Not of all the Dell special keys do something for me, but the brightness adjustment keys seem to work fine. I suspect more of the special keys would have a function if I was running KDE or Gnome instead of Xfce4, but since I don't need them it isn't an issue.

Remember when installing Gentoo that you need to be using the most recent installation CD and stage package. I ran into some confusion at first because my Ethernet NIC wasn't working, and I found out this was because the older 2008 installation CD did not have the driver.

Wireless. I did run into some frustration initially in this area. The problem, however, was not that Gentoo wasn't running the wireless card correctly -- rather, it was running it in a way I didn't expect. When trying to activate wireless, I was looking for a device called "wlan0" or something close to that. But Gentoo registered the device as "eth1," which I am guessing means that Gentoo somehow emulates the wireless device as an ethernet device. Once I realized this, it was a simply matter of using the iw tools and dhclient with the eth1 device, and I was able to connect just fine.

CLAGS. The CFLAGS/CPPFLAGS I settled on for the make.conf file:

CFLAGS="-O2 -march=core2 -mtune=generic -fomit-frame-pointer -pipe"
CPPFLAGS="${CFLAGS}"
These were loosely based on some recommendations I found on the Internet. So far I haven't had any problems. 

Summary. Overall, I am pretty happy with my purchase. Affordable for my budget, and yet powerful and functional enough to meet my school and work needs. At work I connect it up to a spare keyboard and mouse, and it becomes for all practical purposes my office workstation. I was concerned before buying that I might have trouble getting the hardware to work with Gentoo, but so far I haven't had any unresolved issues.

Superman vs. Doomsday Clip

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Okay, I'm normally not much of a Superman fan. But this YouTube clip was kind of cool:




Apparently, the true Superman fans didn't like this cartoon, because it diverged a lot from the storyline in the comics.

Gentoo K3B Code 254

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I installed K3B onto my Gentoo system today so I could burn CDs. But everytime I would try burning a CD, about half-way through the process I would get "code 254: unknown error". I had added my user to the cdrom group with the command

$ gpasswd -a myusername cdrom
and even did a full reboot, but I still kept getting the error.

Finally I found that if I added execute permissions to the cdrom device, this allowed me to successfully burn CDs. In my case:

$ chmod 770 /dev/hda
In newer configurations the cdrom might not be /dev/hda, so run

$ ls -l /dev/cdrom
to find out what device file represents is your cdrom. Or, I guess you could just run

$ chmod 770 /dev/cdrom
since chmod always changes the permissions of the file it is pointing to (I think...)

I assume this is something I'll have to do again everytime I reboot the machine, so I guess I'll need to either write a boot script or actually learn how to configure the devfs...

Time-saving Firefox Add-on

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iMacros Firefox Add-on

The idea behind this add-on is to provide a scripting language that you can use inside your web-browser to automate tasks. Even if you don't actually do any scripting yourself with it, it has a very useful feature out of the box: Macro recording and playback.

If there is something on the web that you do regularly and exactly the same each time, you can just click the "record" button, do that activity, and then click "stop." Your activity will be saved as a iMacro that you can repeat anytime by just clicking on the macro name.

This has saved me a lot of bother when I use it with some of my university web sites. For example, to access my university class schedule I normally have to navigate to the site, login, and then navigate through two or three pages to get to it. But now this process is wrapped up inside one quick macro.

I find it especially convenient that the macros can be saved as bookmarks, meaning that I can put the iMacro on my bookmark toolbar to access it with only one click.

It is only unfortunate that iMacros is not under a FOSS license. From what I can tell, the add-on is meant to be an introduction to the software so that the user will buy some rather expensive related software from iOpus.
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