Macos

if your usual apple -> system settings -> general -> software update doesn’t want to show that there’s update available, and you absolutely, positively know there is one, you can “push” MacOS to refresh list of available updates. to do so, go to terminal and execute: user@MAC ~ % softwareupdate -l Software Update Tool Finding available software Software Update found the following new or updated software: * Label: macOS Sequoia 15.0.1-24A348 Title: macOS Sequoia 15.0.1, Version: 15.0.1, Size: 1389974KiB, Recommended: YES, Action: restart, as you can see, there’s 15.0.1 update available. at this point, the GUI window should “wake up” and actually show that there’s indeed update that’s available, just like in the window below: ...

I’m not a fan of such ‘solutions’ because they hardly qualify as genuine fixes. however, if you find yourself working in MacOS-heavy environment that’s plagued by radio frequency interference, you’ve probably experienced the erratic behavior of Bluetooth-connected accessories. on my mega-desk, I have numerous devices scattered about, not to mention the abundance of Macs themselves. as a result, I encounter this issue quite frequently—almost on a daily basis. some might suggest employing various ‘voodoo’ tricks like “quickly disabling and enabling the mouse, which worked for me” or “updating firmware, shutting down awdl0, and then reading a fairy tale to your children.” ...

ever since the initial tuning of the FreeBSD TCP/IP stack around version 4.x, I’ve found myself occasionally tinkering with the contents of /etc/sysctl.conf just to fine-tune things, you know over time, numerous changes have been made to the FreeBSD TCP/IP stack, including the introduction of modularity. however, MacOS X, being based on FreeBSD, is more conservative and lacks certain options. therefore, on my MacOS systems, I make use of the following /etc/sysctl.conf configuration: ...

if you have to pack a lot of things, using sheer power of modern multi-core/multi-threaded CPUs may come handy. unless… the tools you’re using are not enabling that by default, and you suffer running everything on one core/thread. as I spend most of my time recently with FreeBSD and MacOS the tools I typically use are command line. therefore, for every gzip - consider using pigz. and for bzip2 - consider using pbzip2. ...

FreeNAS is special edition of tuned-up FreeBSD, with GUI available over WWW to enable easy setup and maintenance. i had to migrate recently my old Synology 1815+ thanks to well known Intel SNAFU with Atom CPUs. interestingly enough, even Synology own service department declined to RMA the NAS, without even discussing the situation. so i managed to setup quickly 12x 3.5" bay server. i had five 3.5" 8TB HDDs from Synology that i wanted to rescue data from. the server itself is kind of old one - but solid. it’s a dual Intel L5100 series chassis (with sadly one CPU only), 64GB of RAM, LSI/Avago RAID card and Intel twin 10GE NIC. for ‘fast & dirty’ hack it was more than enough. ...