Vacuum cleaner shopping

Well, the epoxy job I did on my old Dyson vacuum cleaner didn’t last quite as long as I thought it would.

Broken Dyson
Broken Dyson

Maybe I didn’t use enough epoxy, although I think if I made the epoxy layer much thicker, things like the hose and bin wouldn’t have snapped back into place as easily.

I think rather than trying to slather on more epoxy, it’s time to retire this Dyson. It’s done an excellent job over the past 10 years. Mostly likely it will be replaced with a Dyson Animal Ball 2, which has only a slightly smaller bin capacity than my DC15 (2.0 liter vs 2.5 liter for the DC15), and significantly larger bin than the other newer model Dysons that I’ve seen.

Dyson tear down to come.

Manual kmod rebuild

Just leaving a note to myself for future reference.

Needed to rebuild the kmod-wl package because of a borked update process (something made the computer crash mid-update).

A bit of Google searching brought me to the script in /etc/kernel/postinst.d/akmodsposttrans.

Running sudo /usr/sbin/akmods --from-kernel-posttrans --kernels `uname -r` rebuilt the missing kmods and a modprobe wl got the wifi back up and running.

Running sudo /usr/sbin/akmods --force (for the current kernel) or sudo /usr/bin/akmods --force --kernels kernel version (for a specific kernel) works as well.

Summer reading pile

My pile of reading for the summer.

Summer reading
Stacks of Radiology and Radiographics

One of the radiologists leaving the department set out his collection of journals (Radiology and Radiographics) for anyone to grab, presumably because he didn’t want to move them (I wouldn’t want to either).

I decided to grab them because I figured they’d be interesting to flip through, and it’s always good for diagnostic medical physicists to know what’s going on with the clinical side of things.

Even though I can look at all the articles in these journals online, I find sitting down with a journal and flipping through it so much more satisfying.

It’s unlikely I’ll keep all of them. I’ll spend some of my evenings going through two or three issues at a time and keep the ones with interesting articles for later reference.

Southeast Linxufest 2017

Had another fantastic time at Southeast Linuxfest 2017 last weekend. There was a pretty decent sized crowd (not sure about numbers yet) with a lot of familiar faces and a lot of new ones too.

As usual I was taking a lot of pictures and being the unofficial official SELF photography guy. I was able to get in to some pretty good talks.

New this year was the Networking boot camp that was really good. Sat in a couple of those sessions. I also went to some of the Zero to DBA sessions to find out about some of the new features coming in MySQL 8.

One interesting talk given by an engineer at Western Digital was called Rethinking RAID. He did some interesting benchmarking on how long it takes to rebuild a RAID using the big terabyte disks now available. A RAID10 using  10TB disks might sound pretty cool, but if one of the disks craps out, it’s going to take a loooooooong time to rebuild the RAID.

Back again this year was the craft beer share, and thanks to last minute sponsor Logtrust, the Saturday party was open to everyone. Craft beers all around! There was also a BYOC LAN party during the Saturday party this  year too.

Saturday's musical entertainment
Saturday’s musical entertainment

LAN partiers
LAN partiers

The  amateur radio licensing test session at SELF saw 28 people sign up to take the test. Don’t recall the numbers, but half left with either a new amateur radio license or an upgrade.

The LockFALE guys were back again this year with their table full of locks. This year I spent some time hanging out there and had them show me how to pick a lock. It’s surprisingly easy to do with a little time and patience.

LockFALE showing people how to pick locks
LockFALE showing people how to pick locks

LockFALE showing people how to pick locks
LockFALE showing people how to pick locks

Once again, another great time was had at Southeast Linuxfest. One of the things I love about SELF is that I always come away with something new to learn and explore, and this year was no exception.

Southeast Linuxfest 2018 will be #10, so it should be a pretty good one. I hear there are some big things in store for it. Hard to believe it’s already been 10 years since I first got involved with SELF. Can’t wait for next year.

Percona was a big sponsor
Percona was a big sponsor

You’ll find my collection of photos from SELF 2017 over in this photo album.

Fun with Canadian money

Discovered this cool trick with Canadian money via imgur.

Take a laser and shine it through the center of the maple leaf on one of the polymer Canadian bills. You’ll see a projection of the bill’s denomination.

Fun with Canadian money
Fun with Canadian money