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Personally, I’m waiting for Ubuntu Feisty Fawn, which is in beta and whose final release should be imminent.
apt-get updates started failing with:
W: GPG error: http://www.getautomatix.com edgy Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY CC919A31E23C5FC3 W: You may want to run apt-get update to correct these problems
This was easily fixed with:
$ gpg --keyserver subkeys.pgp.net --recv CC919A31E23C5FC3 gpg: requesting key E23C5FC3 from hkp server subkeys.pgp.net gpg: key E23C5FC3: public key "Arnav Ghosh (Automatix Team Lead)
" imported gpg: Total number processed: 1 gpg: imported: 1 $ gpg --export --armor E23C5FC3 | sudo apt-key add - OK
Now, apt knows about the gpg public key for Automatix and doesn’t complain when I do
sudo apt-get update.
How often is is that you come across a simple tweak to your configuration file (
/etc/hosts in this case) that claims to give you a noticeable performance increase, and with no discernable drawback?
I was psyched to try this one out and then I realized that I already had my hostname in
On a side note, I’m looking forward to the Ubuntu Feisty release, which is coming up in a couple of weeks…
Folks running and Debian, Ubuntu, etc. may be aware that Oracle has a Debian repository for Oracle Express and other open-source software.
If you weren’t aware of it and wanted to use it, here’s the magic line to add to
deb http://oss.oracle.com/debian unstable main non-free
apt-get updates started printing this warning:
W: GPG error: http://oss.oracle.com unstable Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 2E2BCDBCB38A8516
because Oracle is signing their packages with GPG and my system didn’t have their GPG public key.
First, I tried:
$ gpg --keyserver subkeys.pgp.net --recv 2E2BCDBCB38A8516 gpg: requesting key B38A8516 from hkp server subkeys.pgp.net gpgkeys: key 2E2BCDBCB38A8516 not found on keyserver gpg: no valid OpenPGP data found. gpg: Total number processed: 0 $ gpg --keyserver subkeys.pgp.net --recv-keys B38A8516 gpg: requesting key B38A8516 from hkp server subkeys.pgp.net gpgkeys: key B38A8516 not found on keyserver gpg: no valid OpenPGP data found. gpg: Total number processed: 0
No dice. So I poked around a bit and found Oracle’s RPM GPG key. I wondered if they used the same GPG key for their Debian packages as they did for their RPM packages. One way to find out:
$ wget http://oss.oracle.com/el4/RPM-GPG-KEY-oracle ... 13:50:04 (356.53 KB/s) - `RPM-GPG-KEY-oracle' saved [1744/1744] $ sudo apt-key add RPM-GPG-KEY-oracle OK $ sudo aptitude update ... Fetched 194B in 2s (94B/s) Reading package lists... Done
Cool, it worked!
Here’s a minor fix for an mzscheme/slib snafu on Ubuntu Edgy Eft.
My Ubuntu box has always been networked via Ethernet, but lately I’ve been toying with the idea of moving the box and/or the wireless hardware to different rooms. Before doing that, I’d need to get it on the network via wireless.
I happened to have a Linksys WUSB54GC USB wireless adapter so I plugged it in and hoped that Ubuntu would magically discover it and set everything up for me. No such luck. The adapter was detected and I even ended up with new wireless interfaces –
wmaster0, which seemed to be using the
rt73usb kernel module. I attempted to configure them, but things just weren’t working. For one thing, when I did
ifup on them, they attempted to get an address via DHCP, but they could not get one. I also noticed that when I tried to use
iwlist to list the available channels, it came back saying that 0 channels were available.
I did a search and came upon this page. This page walks you through downloading the source code for a
ralink-rt73 kernel module and building it with
module-assistant. The page also provides a link to a .deb package that installs all the udev voodoo to recognize the adapter and load the kernel module. When everything is done and working, you plug in the adapter and an interface called
rasusb0 is automatically created. The only problem I had was that I had to unload the
rt73usb kernel module and then reinsert the adapter to get the kernel module to load and to get the
rausb0 interface to be created. Once, I had the
rasusb0 interface, it was pretty easy to set it up to get the wireless working. I entered the SSID and WEP key in the Ubuntu “Networking” panel and then went to the command-line to do a few finishing touches:
$ sudo iwconfig rausb0 channel 2 $ sudo ifdown eth0 $ sudo ifup rausb0 $ ping 192.168.1.1 PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data. 64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=3.54 ms 64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=1.65 ms
Definitely not plug and play but not as hellish as I had imagined.