The following is meant for stable machines, such as routers.
If the kernel panics, reboot automatically, i.e. do not enter ddb. Set ddb.panic=0 in /etc/sysctl.conf and run sysctl ddb.panic=0 for the change to take effect immediately.
Further, if the machine has a watchdog, use it. Enable watchdogd in /etc/rc.conf.local and set kern.watchdog.auto=0 in /etc/sysctl.conf.
The goal is to make OpenBSD sensors stored as metrics in Prometheus time-series database by scraping SNMP. For that the SNMP Prometheus exporter will be used.
Just like the PF counters (https://gist.github.com/vladak/5d2447ae774bc4886fe1ab549fff8d8b) the system sensors can be presented. These are defined in /usr/share/snmp/mibs/OPENBSD-SENSORS-MIB.txt and when the MIBs are copied to the system performing the SNMP walk, they can be displayed as follows:
snmpwalk -M +mibs -l authPriv -a SHA -A bae8aX3i -x AES -X AhChaBa8 -u grafana -v 3 gw \
OPENBSD-SENSORS-MIB::sensorTable
where the mibs is a directory with the OpenBSD MIBs.
I bought the My Passport Studio external hard drive on eBay in 2024 to provide Time machine backup to my old mac mini. Specifically I wanted something that can be connected over Firewire, to save the USB ports on the mac mini. This worked well until one day the drive died - performed I/O really slowly and made classical clicking sounds of stuck/failed hard drive head.
The disassembly of the enclosure is easy, just a bunch of screws. It is a nice enclosure, all alluminium. Replacing the internal drive with Samsung EVO SATA SSD yielded nothing - the drive was not detected. I tried bunch of other drives, esp. classic 2.5" 5400 RPM drive (from Seagate), however none worked.
When a spinning-rust drive is connected to the board, it will start spinning, so there is definitely power being passed to it, however it does not get detected. This is what Linux says:
[11948.216367] usb 1-1: new high-speed USB device number 5 using ehci-pci
installXY.img from https://www.openbsd.org/faq/faq4.html#Downloadopenssl sha256 installXY.imgdd if=installXY.img of=/dev/sdaThere seems to be some trouble when resizing a Chronicle Map after going from XStream 1.4.20 to 1.4.21 (which is security driven release) for non-Serializable objects.
Current Chronicle map still uses xstream 1.4.20: https://github.com/OpenHFT/Chronicle-Map/blob/343bb22247c17da12ee63b4099099c085fa0cf5f/pom.xml#L132-L137 so they have not found about the issue yet.
map.getAll(tempFilePath.toFile());
String field = map.name();
map.close();
jetkvm/dc-extension-firmware#1
solution/workaround from https://discord.com/channels/1270105230989594634/1367610331806957699/1367624533598802011
Jared Jones — 02.05.25 0:11 Instructions to update your DC Extension to Power on by Default
The OnScreen LG utility reports: (3.04, 0.12.16, 4.18)
After the update to macOS Sequoia 15.4, the display no longer worked as USB hub, rendering external keyboard connected directly to the display over USB useless. Had to unplug and replug the display power for this to work again.
Links: