enter Wed Jan 6 10:47:10 2021
Making a new cable to run from the Sorensens' rack over to PSOMA rack
- Grabbed from EE: an appropriately chonky 3-wire cable (AWG 12, same as the old cable),
the 18V 'ligo style' connectors (not needed), and some lugs. Confirm the cable is long enough
- open up the power strip, take a photo to make sure I get the wire mapping right.
- Remove the old (short) cable, crimp the lugs (and insulator jacket) onto the new cable and install it on the power strip.
- Run the cable along the cable tray to the Sorensen. Turn off the power supply, then attach the lugs on that end with a 10-32 screw/washer/nut
- Turn on the supplies, confirm +- 18 V at the power strip. All good, returned parts to EE.
PSOMA realitime model
I figured I'd initialize our realtime model for PSOMA. First, copied over x1cry.mdl (cryo cavities model) into x1oma.mdl. When I build this model, I get the following error
Linux source does not match currently running kernel.
The RCG expects the linux source to be at /usr/src/linux. For modern
distros this should be a symlink to the source installed as part of
the kernel header package for the running kernel. For this system:
/usr/src/linux -> /usr/src/linux-headers-3.2.88-rtcds
Please create/update this link, or set the RCG_IGNORE_KERNEL_RELEASE
environment variable to bypass this check
I haven't seen this before, do I need to update something? I haven't made recent changes to cymac, so I would be surprised if it's running a newer version of linux / rtcds than the existing source (and only one version of rtcds exists in /usr/src anyway). Indeed, when I ask for the currently running kernel (uname -r), it is '3.2.88-rtcds'; and the link at /usr/src/linux points to /usr/src/linux-headers-3.2.88-rtcds. I would expect that the source "linux-headers-3.2.88-rtcds" matches the kernel '3.2.88-rtcds'. I'm setting the ignore flag for now, but would like to know what this means.
Setting ignore to '1' or 'True' does not avoid the error message. I don't see mention of this message on the 40m or other elogs, so I'm a bit stuck. Since the realtime model isn't critical right now anyway, that's all for now.
exit Wed Jan 6 16:27:10 2021 |