Newer versions of Ansible don't work with RHEL 8
Jeff Geerling Blog
by Jeff Geerling
1w ago
Newer versions of Ansible don't work with RHEL 8 Red Hat Enterprise Linux 8 is supported until 2029, and that distribution includes Python 3.6 for system python. Ansible's long been stuck between a rock and a hard place supporting certain modules (especially packaging modules like dnf/yum on RHEL and its derivatives, because the Python bindings for the packaging modules are stuck supporting system Python. Users are getting errors like: /bin/sh: /usr/bin/python3: No such file or directory The module failed to execute correctly, you probably need to set the interpreter.\nSee stdout/stderr for ..read more
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55 TOPS Raspberry Pi AI PC - 4 TPUs, 2 NPUs
Jeff Geerling Blog
by Jeff Geerling
1w ago
55 TOPS Raspberry Pi AI PC - 4 TPUs, 2 NPUs I'm in full-on procrastination mode with Open Sauce coming up in 10 days and a project I haven't started on for it, so I decided to try building the stable AI PC with all the AI accelerator chips I own: Hailo-8 (26 TOPS) Hailo-8L (13 TOPS) 2x Coral Dual Edge TPU (8+8 = 16 TOPS) 2x Coral Edge TPU (4+4 = 8 TOPS) After my first faltering attempt in my testing of Raspberry Pi's new AI Kit, I decided to try building it again, but with a more 'proper' PCIe setup, with external 12V power to the PCIe devices, courtesy of an uPCIty Lite PCIe HAT for the Pi ..read more
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Testing Raspberry Pi's AI Kit - 13 TOPS for $70
Jeff Geerling Blog
by Jeff Geerling
1w ago
Testing Raspberry Pi's AI Kit - 13 TOPS for $70 Raspberry Pi today launched the AI Kit, a $70 addon which straps a Hailo-8L on top of a Raspberry Pi 5, using the recently-launched M.2 HAT (the Hailo-8L is of the M.2 M-key variety, and comes preinstalled). The Hailo-8L's claim to fame is 3-4 TOPS/W efficiency, which, along with the Pi's 3-4W idle power consumption, puts it alongside Nvidia's edge devices like the Jetson Orin in terms of TOPS/$ and TOPS/W for price and efficiency. Google's Coral TPU has been a popular choice for a machine learning/AI accelerator for the Pi for years now, but G ..read more
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Saying a lot while saying nothing at all about Ansible AWX
Jeff Geerling Blog
by Jeff Geerling
2w ago
Saying a lot while saying nothing at all about Ansible AWX A few days ago, the post Upcoming Changes to the AWX Project came across my feed. An innocuous title, but sometimes community-impacting changes are buried in posts like this. So, as an interested Ansible user, I read through the post. In 1,610 words, almost nothing of substance was written. A lot about how it's not 2014 anymore, so 2014-era architecture doesn't suit AWX. Then a big bold disclaimer at the bottom: Before we conclude, we should be clear about what will not happen. We are not changing the Ansible project We are not adju ..read more
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Can the Raspberry Pi 5 handle 4K?
Jeff Geerling Blog
by Jeff Geerling
2w ago
Can the Raspberry Pi 5 handle 4K? In the past, I've booted LibreELEC on the Raspberry Pi Compute Module 4 in my "This is not a TV" Sharp NEC display. According to LibreELEC's Pi 5 blog post, the new BCM2712 SoC decodes 4K and 1080p content just fine in H.264, and supports HEVC 4K60 hardware decoding. And they've tested AV1, VC1, and VP9 at 1080p with no issue, though 4K in non-native formats does encounter frame dropping. I wanted to put the Pi through some testing of my own, now that the Pi 5's been out for months, and LibreELEC version 12 is stable. Jeff Geerling May 31, 2024 ..read more
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Testing object detection (yolo, mobilenet, etc.) with picamera2 on Pi 5
Jeff Geerling Blog
by Jeff Geerling
2w ago
Testing object detection (yolo, mobilenet, etc.) with picamera2 on Pi 5 Besides the Pi 5 being approximately 2.5x faster for general compute, the addition of other blocks of the Arm architecture in the Pi 5's upgrade to A76 cores promises to speed up other tasks, too. On the Pi 4, popular image processing models for object detection, pose detection, etc. would top out at 2-5 fps using the built-in CPU. Accessories like the Google Coral TPU speed things up considerably (and are eminently useful in builds like my Frigate NVR), but a Coral adds on $60 to the cost of your Pi project. With the Pi ..read more
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LattePanda Mu crams x86 PC into SoM form factor
Jeff Geerling Blog
by Jeff Geerling
3w ago
LattePanda Mu crams x86 PC into SoM form factor LattePanda's been building Intel-based SBCs for almost a decade, but until now, they've never attempted to unite an Intel x86 chip with the popular SoM-style form factor Raspberry Pi's dominated with their Compute Module boards. This year they've introduced the LattePanda Mu, a SoM that marries an Intel N100 SoC with a new edge connector standard they've designed, using a DDR4 SODIMM form factor. Right now they offer two carrier boards: a lite version with basic interfaces and a couple 2230-size M.2 slots for SSDs and wireless, and a full evalu ..read more
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The Cicadas are Here
Jeff Geerling Blog
by Jeff Geerling
1M ago
The Cicadas are Here There are annual cicadas. Then there are 13-year cicadas. And 17-year cicadas. Then there are days like today when 13 and 17 year cicadas emerge from the ground around the same time, creating a fairly odd event in our backyard. My daughters are helpfully pointing out a few of the thousands of holes in the ground around our yard—sites where cicadas have been emerging for the past two weeks. Almost every day there's a new batch that starts climbing up the garden, the trees, the house, the barbecue grill, the kids toy box, the toys the kids leave in the yard... pretty much ..read more
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MicroSD cards' SBC days are numbered
Jeff Geerling Blog
by Jeff Geerling
1M ago
microSD cards' SBC days are numbered For years, SBCs that aren't Raspberry Pis experimented with eMMC and M.2 storage interfaces. While the Raspberry Pi went from full-size SD card in the first generation to microSD in every generation following (Compute Modules excluded), other vendors like Radxa, Orange Pi, Banana Pi, etc. have been all over the place. Still, most of the time a fallback microSD card slot remains. But microSD cards—even the fastest UHS-II/A2/V90/etc. ones that advertise hundreds of MB/sec—are laggards when it comes to any kind of SBC workflow. The two main reasons they're u ..read more
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Quick NVMe performance testing with fio
Jeff Geerling Blog
by Jeff Geerling
1M ago
Quick NVMe performance testing with fio I've recently been debugging some NVMe / PCIe bus errors on a Raspberry Pi, and I wanted a quick way to test NVMe devices without needing to create a filesystem and use a tool like iozone. I don't care about benchmarks, I just want to quickly push the drive and read and write some data to it. fio is the tool for the job, and after a quick install sudo apt install -y fio, I create a configuration file named nvme-read.fio: [global] name=nvme-seq-read time_based ramp_time=5 runtime=30 readwrite=read bs=256k ioengine=libaio direct=1 numjobs=1 iodepth=32 gr ..read more
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