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Managing HPE SAS Controllers
Notes to self. And anyone else who might find them useful. Following are some ssacli commands which I use infrequently enough that they fall out of cache. This may repeat information in other blogs, but since I search my posts first when commands slip my mind, I thought I’d include them here, too. hpacucli is…
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Signed NVIDIA drivers on Google Cloud Dataproc 2.2
Hello folks, I’ve been working this year on better integrating NVIDIA hardware with the Google Cloud Dataproc product (Hadoop on Google Cloud) running the default cluster node image. We have an open bug[1] in the initialization-actions repo regarding creation failures upon enabling secure boot. This is because with secure boot, kernel driver code has its…
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IPv6 Multicast support on libvirt guests using macvtap
# # Debian / libvirt # # By default, qemu guests network interfaces are created with the # trustGuestRxFilters attribute set to no. This setting blocks # neighbor solicitation and other ipv6 multicast traffic. To enable # neighbor solicitations, modify your interface definition in your # guest definition XML. # For example if you have…
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Converting a windows install to a libvirt VM
Reduce the size of your c: partition to the smallest it can be and then turn off windows with the understanding that you will never boot this system on the iron ever again. Boot into a netinst installer image (no GUI). hold alt and press left arrow a few times until you get to a…
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First taste of Debian 12
As some of you may know, the Debian project released v12, bookworm to stable on the 10th of this month. I haven’t had a reason to try it yet, but I’m downloading it now. My first thought is that it’s much larger than I expected. The normal sized version used to fit on a CD-ROM…
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Instructions for installing Proxmox onto the Qotom device
These instructions are for qotom devices Q515P and Q1075GE. You can order one from Amazon or directly from Cherry Ni <export03@qotom.com>. Instructions are for those coming from Windows. Prerequisites: A USB keyboard and mouse A powered HDMI monitor and an HDMI cable A copy of the Proxmox VE Installer ISO A USB disk from which…
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State of the racks, 20221231
Hi friends! I haven’t written in a while. I’ve been caught up in work. But between working, I’ve put together some new equipment in a couple of new racks. I bought an audio dampened 15U rack a couple of years ago or so, and into it I’ve placed the RAID array and an HP desktop…
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Recovering videos from DV tapes with Canon ZR80
I am recovering some tapes from back in the day that some of you may enjoy. Here is a log of the process so that maybe you can recover some of your own DV tapes. Seems to work well in modern Debian. To attach to the camcorder, I used a PCI-e card that has an…
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The woes of 520-byte sectors
A couple years ago, I bought a 12G/s SAS disk to see if I could get it to work with the RAID controller with external SFF-8088 ports which came with the system I got while I was working at The Linux Foundation. I got an enclosure to go with it because I was enthusiastic and…
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I’m running an ethereum node
cjac@server0:~/Downloads/geth-linux-amd64-1.8.14-316fc7ec$ df -h ~/.ethereum/ Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg00-ethereum 148G 130G 11G 93% /home/cjac/.ethereum this was from before I ran ./geth –syncmode “fast” –cache=1024