Month: August 2006

Server upgrade

I upgraded my server from Fedora Core 4 to Fedora Core 5 using yum. After going through all the .rpmnew and .rpmsave files and fixing configuration files, most things are working. A couple of annoyances:

  • It no longer puts items in /etc/fstab for usb storage devices, so I have to find what device the disk has been assigned and mount it manually. I’m hoping I can find a solution to that.
  • Can somebody please tell me why the people who wrap the PostgreSQL binaries in an RPM can’t figure out how to do a pg_dumpall in the %pre at the beginning of the process, and a restore of the backup in the %post at the end? The init.d script refuses to start up if you have an 8.0.x database on an 8.1.x PostgreSQL, so after the upgrade you have to go “oh, shit, the last backup I made was …” and restore it. If you’re not the sort of person who dumps the database every night to a file on your USB disk, you’re screwed.
  • WordPress was refusing to clear out comment spam because of some index issue, and then claimed that the table had “crashed”. I had to fumble around with mysql_upgrade, mysqlcheck, and myisamchk to get that straightened out.

So far, knock wood, those are the only issues. The PostgreSQL one is, to me, indicative that the Fedora Core team don’t really care about preserving data. I haven’t tried, but I bet you anything the Debian people don’t just say “oh well, if you didn’t back up you’re screwed.”

Today’s paddle

I went for a paddle today. For a change, I put in at Browncroft Avenue and went upstream. I was hoping to get up to the place where the Elison Park shuttle puts in, but I actually fell short by about 20 feet.

I chose this put-in, because that part of the creek is more interesting than the lower bit – it’s narrow, it’s twisty, it gets shallow and then deeper, fast and then slow, and most of it is covered with trees. There is more wild-life, but paradoxically enough, there is also more human activity – these pleasant tree lined banks go through the middle of picnic areas that seem to be in constant use in the summer. Some of them are family picnics and private groups, but there was also this gigantic party with large barbeque grills set up and loud blaring rap music.

Last week those trees had made it impossible to use my GPS with the “built-in” antenna, but today I decided to try the external antenna. It made a bit difference – I didn’t see the GPS complain about lost signal at all, except under the bridge over Browncroft Avenue. The strange thing is that when it lost the signal that early in the paddle, it decided I must be driving and suddenly I saw it showing me having an average speed of around 80 mph. I reset everything as soon as I came out from under the bridge. It worked great. It shows that I paddled a distance of 4.7 miles (as opposed to Google Maps Pedometer, which says 4.6) at an average of 3.3 mph. On the way upstream, I found that on the sections where I could paddle fast, I could get it up to around 3.9 mph, but my average speed was around 3.0 mph. When I turned around, I was disappointed to find that if I pushed it hard, I could only get up to around 5.4mph, but I was so tired that most of the time I was only paddling around 3.5 or 4.0. I think that means the stream goes about 1.5mph, or maybe it goes faster and I was just more tired than I think.

On the way up, I bottomed out several times, and one time I got stuck so bad that after backing up and retrying 3 or 4 different routes, I ended up getting out of the boat, walking forward about half a boat length, and getting back in. Also, there was a tree across most of the stream fairly early on and I had to paddle as fast as I could and I just barely got through it. And when I was within sight of the place where the shuttle puts in, I could see some people in white water boats playing, but I got into a bit of fast moving water that I just couldn’t seem to paddle faster than. Since I was almost where I’d planned to turn around anyway, and the presence of the white water boats made me think the next rapid would be even faster, I turned around.

There was a fair amount of wildlife around – I saw lots of ducks, including some who were pure white. One duck kept flying down river and landing right in front of me, until I got close enough and then it would fly down river again. After a few times, I found a bit of river that was wide enough that I could pass him without activating his flight reflex. I saw several Little Green Herons, including two together in a tree. And there was a Kingfisher heading downstream, but I couldn’t find that Bruce Cockburn song that reminds me of on the iPod Shuffle. Also saw a couple of American Goldfinches.

Paddling downstream is a lot more fun than paddling upstream. On the way upstream, I tried different depths of skeg – I thought that with more skeg the kayak wouldn’t get caught by the current and turned. Great in theory, but I found that unless I was paddling pretty fast, the current got the front turned quite a bit before the skeg got into the fast water and stopped the turn. I actually had to do a back sweep in a few places to get around corners. Coming downstream is a lot more fun that way – you can use the way the current catches the upstream part of the kayak to kick you around corners, and that’s cool.

That was weird

I got a phone message asking if I was “Paul Tomblin, the Rochester blogger”, and if so, could I please call WHAM News. I phoned the number back, and it was somebody doing a story about a new law in New York that requires library and other public internet access sites to block access to MySpace and Facebook and other “social networking sites”, and they wanted a blogger to talk about whether private blog sites also would be affected by this law.

I know bugger all about this law, and while I’m usually willing to spout off about any subject any time, I didn’t really think I should be the one they talk to. Maybe if I didn’t think the story would interfere with tomorrow’s Pilots Picnic, I would have volunteered.

The Good, the Bad, and the Ugly

I went for a flight today. The main reason was just to try out my new HALO headphones. But the other reason was that it has been a beautiful weekend, only two of the planes have been booked for a few hours each, and I didn’t get my flight to Oshkosh. The maintenance coordinator for the Lance has been his usual uncommunicative self, so I had no idea if it was back from maintenance again. I booked an Archer instead. When I got to the airport, the Lance was there, but when I attempted to change my reservation the ScheduleMaster site was throwing ASP errors. Oh, what the hell, I can fly an Archer can’t I?

While I was waiting for the fuel truck, there was a guy taking delivery of his brand new Diamond Star DA-40. What a beautiful plane! Wouldn’t mind having one of those on the flight line.

I started the plane up, and found that I wasn’t getting any sound in my right ear with the new headset, so I switched over to my old familiar Dave Clark DC10-13.4s (with the Headsets Inc ANR kit). Take off was faster than I’m used to – these Archers are lighter than the Dakota and Lance that I’ve been doing all my flying in. I didn’t have any plan, so I just headed out due west. By the time I got to Batavia, I decided I needed to get the wind farm waypoint back in my GPS, so I headed down in the right general area until I spotted it. And after I got that waypoint, I decided I needed the railway trestle in Letchworth Canyon as a waypoint as well, so I headed down that way.

I was in smooth air with the plane trimmed for level flight, so I thought I’d give the HALOs another try. I put them in, and had the same problem with them as before. But this time I remembered that they have a Mono/Stereo switch. The guy demonstrating them at Oshkosh had a stereo intercomm, but the plane doesn’t. Switching it to Mono cleared that problem up immediately. At first they didn’t seem like they were blocking out the sound very well, but the foam expands pretty slowly and after a half a minute or so they were blocking as well as the Dave Clarks, if not better. It seems like they were blocking different frequencies though. The engine sounded different.

After I got to the trestle, I flew up the Letchworth Canyon. While I was going up, I decided to have some fun and tried turning to follow all the twists and turns of the river, like you see those “low and slow” guys doing in their Cubs and float planes. Of course I was at my usual 4,000 feet. But along the way I thought about my usual ground shyness. If I was going to fly the twists, I might as well try to fly a bit lower. Not down in the canyon of course, but at a nice legal 500 feet above any people or structures. So when I turned to head down, I was down at 2,000 feet, which is probably actually more like 1,000 AGL. Hey, small victories, right? The ground rises towards the trestle, and I crept up to 2,500 feet. It was fun.

When I was in the area, I thought I’d do some touch and goes at Perry-Warsaw. There was practically nothing on the CTAF except a bunch of guys with thick Pakistani accents talking from some place near Toronto I think. I don’t know if it was the narrow runway or what, but I found myself quite high on final both time – the first time I had to slip like hell to get down. And the second time was better, but I still landed pretty hard. I quickly switched the radio over to 121.5 to make sure I hadn’t turned on the emergency beacon (ELT), and was relieved to find it wasn’t quite that hard. That was bad. After that, I decided to come home.

I wasn’t high or anything, but I still have problems with speed control on final. I rounded out, but was a bit high, so I put the nose down a tad, but almost immediately lost all lift. I bounced twice. Oh, that was ugly. Once again I checked the ELT, and it wasn’t on. Phew.

As I was tying down, the DA-40 was coming in. It’s such a nice plane, and I think the fully castering nose wheel would be really handy for ground handling.

I still want to go out in the Lance to try the HALO. Maybe next week.

Ellison Park Shuttle Again

I decided to do the Ellison Park Shuttle again, this time without Vicki. The weather was perfect, and because of that there were a lot of people out. While I was waiting for the shuttle to leave, a large group left including a woman with a dog in her kayak. The dog had on a life jacket, which is just as well because they weren’t more than 20 feet from the dock when the dog decided to jump out, and the woman had no idea how to get the dog back in. By the time we left she was coming back to the dock with the dog swimming along side. I have no idea whether they got sorted out or not.

On the shuttle with me there were two tandem kayaks, two canoes with two people in them, and one other solo kayak, none of them looking very experienced. I helped the driver get them launched, and left after them. By the time I caught up to them (at the next bend), they were all over the river and pointing in random directions. Two women in one of the canoes rammed me as they spun around and flailed at the water, bringing back some bad memories from when I hurt my wrist last year. I hope they got settled down and pointing in the right direction eventually, because there were some snares later on.

I brought my GPS along as an experiment. The manual says it’s waterproof and floats so I thought that I’d be safe. The idea was to get a better idea of the real length of the course, and also the speed I maintain. But it was kind of a waste – during the twisty part at the top of the course, it kept losing signal, often for long stretches. So distance was even less accurate than my previous attempt using the Google Maps Pedometer.

The river was pretty high after the rain, and moving pretty fast. But the recent storms also left some traps for the unwary. There was a downed tree that blocked most of the river leaving a very fast passage along one side. And then not too much later just past Browncroft Avenue there was another tree that had fallen all the way across, but it’s actually not in the water but above it. There was a group coming upstream under it when I got there, and I was able to also duck under it in one part.

There wasn’t a lot of wildlife out today unless you count hordes of inexperienced paddlers. I saw kingfishers in the twisty wooded bit at the top, and some barn swallows under the bridges, and a few ducks, but that’s about it. I didn’t see the usual swans or geese.

Back at Baycreek, there were a couple of guys paddling around with Greenland paddles and kayaks. That looks like something I’d like to try out some time. I’ve heard they’re better on your elbows and shoulders.