I wanted to add some kind of doorbell indication to my office, and was almost ready to start buying parts for wired doorbell sensor like this one on hackaday.com, but I wasn’t sure how well it would work with the Beagle Bone Black that’s running my digitemp sensor network in the garage. I’d have to run about 20' of wire over to the sensor from the Beagle and that was bound to effect the reliability.
I was expecting to spend the whole afternoon getting a tftp server setup so I could PXE boot some qemu virtual machines for testing. I wanted to make sure it didn’t interfere with anything else on the LAN so it would have to be limited to the user mode network I use with my vms. Typically when I try to do something like this I end up trying a bunch of different things that don’t quite work right.
I recently needed to convert a CD of xrays into jpeg images, and it wasn’t immediately obvious how to do this. The files on the CD were in DICOM format, which appears to be a commonly used format in the medical community that includes the image and extra metadata about the patient. I first used the aeskulap viewer which worked fine for viewing, but has no options (that I could find) for exporting them to regular jpeg images.
I am transitioning to a new GnuPG key, here is my transition statement, based on one from Simon Josefsson
Here is my signed statement:
- -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512,SHA1 OpenPGP Key Transition Statement for Brian C. Lane I have created a new OpenPGP key and will be transitioning away from my old key. The old key has not been compromised and will continue to be valid for 30 days, but I prefer all future correspondence to be encrypted to the new key, and will be making signatures with the new key going forward.
I was going to write about using mock to make live iso's without using virt-install, but this week is the OpenStack Summit and one of the things you can use livemedia-creator (lmc) for is making disk images for use with OpenStack.
If you followed the instructions in my previous post on creating live isos you already have everything you need except the kickstart and OpenStack. I'm not going to cover how to setup OpenStack, I used the instructions from the RDO project Quickstart without too much trouble.
In this post I am going to describe how to create bootable live isos using livemedia-creator (lmc). It was created so that the same Anaconda installer logic would be used for installing systems and creating bootable media like the live iso. lmc can also be used to create disk images, but I'll cover that in the next post. Anaconda and kickstart are used to install the packages, and lmc compresses the filesystem and wraps it up in an iso.
Fedora 22 is almost here, so I thought I'd write a couple posts on how to use lorax and livemedia-creator to create bootable Fedora images. I'll start with lorax. It is used to create the Anaconda boot.iso which is used to install systems using a network connection. You can also automate your installations by using the boot.iso with a kickstart file. Lorax is part of the current release-engineering workflow and is used to create the boot.
Automatic backups are important, especially when it comes to irreplaceable data like family photos. I have used s3cmd to maintain my website’s static files for a while now, and it was simple to use it to push my 100GB+ archive of photos over to S3. But I needed an automated way to update it with any new photos that my wife or I may take. The sync protocol really isn’t what you want – there should be no need to re-examine all the files that have already been archived.
