I upgraded our server to Fedora 16 from Fedora 14 recently, so I thought I’d continue my tradition of posting the solutions to the problems I encountered to help others.
Two major changes in Fedora recently increased the difficulty of this upgrade: the switch to grub2 from the grub legacy bootloader, and the switch to systemd from Upstart and SysV-style init.
I used the PreUpgrade method once again to reduce downtime and avoid burning a disc.
References to read first:
The new Vantage Pro2 Plus weather station worked, recording about one inch of precipitation during the recent rainfall! Now I just need to get the USB interface working and wview set up to analyze the results.
We installed the weather station up on the roof along with the new Wineguard HS-1000 omnidirectional HD antenna, which is also working well. Dropped cable over a year ago – Netflix + other streaming + broadcast is good enough and costs a lot less!
I hope to combine the data from the weather station (including the UV and solar radiation sensors) and the TED 5000 whole-house energy monitor to correlate temperature and other weather changes with energy usage and solar PV power generation from the solar arrays also on the roof.
Update: Success! The weather station is online (after much fighting with hardware and interfaces)! Check out Wumple Weather and station KTXAUSTI146 on the WeatherUnderground.
I recently heard from a friend that past (and maybe present) West Coast game industry executives view Austin as developing no successful titles generating significant profit and/or receiving critical acclaim.
I want to convince them otherwise, so here’s the a partial list of hit games developed in Austin:
Know of more titles, or any additional information to add? Add it to the comments! (As long as the info is public, that is…)
It would also be great if we can also get some rough sales and revenue numbers for each title.
Here’s a problem I ran into recently: I temporarily switched the root filesystem of my Fedora 14 install from RAID-5 to non-RAID. After I received the new SSD drives, I switched it to RAID-1 but the dracut boot sequence could not find the RAID-1 array and mount the root filesystem, ending in the errors ‘Can’t mount root filesystem. Boot has failed, sleeping forever’.
Using the dracut rdshell and rdinitdebug kernel boot options to get a shell prompt from the dracut initramfs led me to the RAID assembly failing during boot during “dracut: Autoassembling MD Raid”. I discovered manually assembling the array using mdadm –assemble … then exiting the shell would allow the boot to continue, so at least I had a temporary workaround.
To fix the dracut auto assembly of the RAID array, I did the following:
After these steps, the dracut boot sequence was able to auto-assemble the RAID array on boot and mount the root filesystem.
I hope this writeup helps someone who runs into a similar problem. 🙂
Have a USB-attached CyberPower System UPS but can’t get it to work with Network UPS Tools aka nut 2.6.0 (such as from the Fedora 14 or 15 rpms)? See the link to the rpms below I built.
The errors you might see (especially when running usbhid-ups -D -D -D) include “could not connect to ups”, “libusb_get_report: error sending control message: Operation not permitted”, and “Can’t retrieve Report 03: Operation not permitted”.
There is a workaround for a libusb issue affecting communication with USB CyberPower Systen UPSs in the trunk branch of the nut source code that will get into nut 2.7, but was not part of nut 2.6. See the fix here in change 2893 on nut’s trac system. Read more about the problem in this message on nut-upsuser.
To get the fix now (before the 2.7 rpms are released), I rebuilt nut 2.6 rpms (with small changes to the spec file) using the latest source snapshot from nut’s buildbot, r2978. You can download these r2978 rpm’s from here.
Have a Neato XV-11 robotic vacuum cleaner with an intriguing USB port?
Check out Hash’s post at the Random Workshop about connecting to the XV-11’s built-in serial subsystem via USB to send and receive commands and data from the vacuum. I’m using a Linux box and minicom. 🙂
Now I just need a miniature embedded Linux platform with wifi so I can wirelessly communicate with the robot while it vacuums so I can try to create images from the LIDAR data as it maps the house…
Melissa from Hunters Chase pointed out that Cycled Plastics in Austin recycles foam products, which are not taken and recycled as part of the single stream recycling from the City of Austin and Texas Disposal Services.
From their website at http://www.cycledplastics.com/Services.html :
Public Drop Off Site: Cycled Plastics maintains a public drop point at it’s facility in Austin (at 10200 McKalla Place). The following items are accepted Monday through Friday, 7am – 5pm. (click here for a map)
I upgraded Fedora 12 to Fedora 14 over the weekend using PreUpgrade for the first time. (I tried a direct yum distro-sync upgrade first but it got stuck in infinite dependency loops.)
Overall I was impressed with the download size reduction and the install speed after rebooting the system for the anaconda installer to apply the new packages. I liked the reduction in system downtime resulting from downloading all the packages before the reboot and the smaller set of packages that were installed.
Some extra steps I had to deal with:
It also seemed like the install asked a few redundant questions it could have figured out before the reboot to start the install:
This upgrade was the most painless Fedora or Red Hat upgrade I’ve done in years! Almost all of my services worked afterward with no reconfiguration. A big thanks and hats off the the Fedora team for PreUpgrade!
Another good opinion article on CNN, this one by John Avlon advocating voters rejecting hyper-partisan candidates.
via Voters should fire Bachmann, Grayson – CNN.com.
A great quote: “We need to stand up to the extremes on both sides to stop the cycle of incitement before it gets even uglier.”
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