A hogshead (abbreviated "Hhd", plural "Hhds") is a large cask of liquid (or, less often, of a food commodity). More specifically, it refers to a specified volume, measured in either imperial or US customary measures, primarily applied to alcoholic beverages, such as wine, ale, or cider. — Hogshead – Wikipedia It must have been in […]

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When I started to include container migration into Podman using CRIU over a year ago I did not really think about SELinux. I was able to checkpoint a running container and I was also able to restore it later https://podman.io/blogs/2018/10/10/checkpoint-restore.html. I never looked at the process labels of the restored containers. But I really should […]

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I’ve connected the Arduino pro mini (328/5V) to my pcb. Of course it’s not directly soldered to the PCB but using a connector, so I can replace the parts that get bricked during development. I’ve downloaded the blink example using something like this. Directly after flashing it worked, but once I disconnected the flashing adapter […]

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… an ohmic load (Thank you Axel) shows the same behavior (spikes on Vout) as seen in the previous post. Fortunately I’ve spent some space on the pcb for an optional filter that has now become mandatory. The spikes do not change with load or input voltage. I took a closer look and they are […]

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I’ve run the power supply under load. As you can see I’ve not yet removed the screen protector foil from my multimeter connected the cables in the wrong direction so the current is negative load current @ Vout=5V [A] The load was a florist wire that accidentally had the correct length to have a resistance […]

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After a (luckily unsuccessful) search for short cuts I have connected the power supply part on the pcb to an external power supply. The following screen shot shows that the power supply becomes operational at around 12V. Channel 1: VoutChannel 2: Vin (manual rise from 0 to 15V ) Unfortunately I do not have a […]

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After a long time I’ve reactivated my solder iron. Since I’ve done that without additional flux (apart from the content of the solder) the result looks accordingly. My next step will be testing the circuitry. power supply part of the cancombase Surprisingly for me the soldering of the IC was the easiest. I assume, that […]

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After ordering the prototype pcbs in China on Saturay they arrived on the following Wednesday. I even got one more pcb than I’ve ordered. The service is very fast and the price more than acceptable. So based on this single sample I can recommend allpcb.com. Apart from the silkscreen, the pcb looks good. But I’ve […]

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Since a few weeks I have the new ThinkPad X1 Carbon 6th Generation and as many people I really like it. The biggest problem is that suspend does not work as expected. The issue seems to be that the X1 is using a new suspend technology called “Windows Modern Standby,” or S0i3, and has removed […]

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The version of CRIU which is included with CentOS is updated with every minor CentOS release (at least at the time of writing this) since 7.2, but once the minor CentOS release is available CRIU is not updated anymore until the next minor release. To make it easier to use the latest version of CRIU […]

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After many years the whole RPM Fusion repository has grown to over 320GB. There have been occasional requests to move the unsupported releases to an archive, just like Fedora handles its mirror setup, but until last week this did not happen. As of now we have moved all unsupported releases (EL-5, Fedora 8 – 25) […]

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