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32

It’s not like pulling the power plug because it sends various signals like SIGTERM which closes services and daemons. User applications with unsaved data may get lost, but they’re not arbitrarily closed as if the system lost power. From the man page (man reboot) The halt and reboot utilities flush the file system cache to disk, send all running ...


12

You can hold down the ⌥ Option key (also known as Alt) at startup, and that will show you all the available boot volumes.


9

If you want a boot manger which behaves similar to GRUB, the you could install rEFInd. This free boot manager is similar, because rEFInd can be configured to display a menu of operating system choices for a specified period of seconds, then automatically choose the last used if the period expires.


2

In my case it seemed to be my USB-C to USB-A connector. I used a different one and it worked.


2

TMPDIR needs to point to an existing, user-writable directory. So setting it to ~/tmp is fine as long as ~/tmp actually exists. By default it points to /var/folders/_d/_SOMERANDOMLOOKINGSTRING/T/ to ensure that every user has their private temp folder. If for whatever reason you loose the definition you can run find /var/folders/_d -user $(whoami) -type d -...


2

https://en.wikipedia.org/wiki/Xcode#Xcode_11.x_(since_SwiftUI_framework) For macOS 10.14.4, Xcode versions compatible are: Xcode 10.2 - 11.3.1. Xcode 11.4 onwards requires macOS Catalina, 10.15.2 Registered developers can download old versions of Xcode (all the way back to Xcode 2.3 as well as new as 11.5 at https://developer.apple.com/download/more/


2

Not able to reproduce the error as I have access to Catalina's and High Sierra's macs but not Mojave. But you may want to try if updating permissions for your Terminal.app and iTerm.app resolved the issue: System Preferences> Security&Privacy> Privacy> add both apps to "Accessibility" and "Automation" lists Deleting & re-adding them could ...


1

There's the bless command, if you're into typing commands. It's here on a 10.12.6 system; don't know if Apple removed it in later releases. Maybe something like: bless --mount "/Volumes/OtherOS" --setBoot


1

I suspect your display calibration is significantly out of true. In both your screenshots the grey text is perfectly legible to me, on a fully calibrated machine, and in fact check out to be almost identical values as I see when I switch that setting on, as measured by the Digital Colour Meter in Utilities. That means the data being sent to your display is, ...


1

You usually can't boot a Mac with an OS version which is older than the release date of the hardware. The old OS lacks some drivers required for new hardware. You can still run Mojave etc. within a VM (using VMWare or Parallels).


1

I also had problems with running out of disk space due to Time Machine/APFS local snapshots and the macOS disk purging system not working quickly enough -- I didn't find a way of disabling local snapshots, but I did find the following commands can help, if making management a little more manual. If you want to delete all local snapshots, the following ...


1

I found there were now 2 HD's on my desktop, Macintosh HD and Macintosh HD Data. I'm not sure what this is about, so if anyone has an info - it would be appreciated. This is expected behavior in macOS Catalina. Refer to the Apple Support document, About the read-only system volume in macOS Catalina macOS Catalina runs in a read-only system volume, ...


1

Appears to be an issue with the Mac App Store. See this Apple Discussions link: https://discussions.apple.com/thread/251378763


1

It was a temporary issue at Apple's end. They haven't given an official answer to why Mojave users couldn't download from the App Store. But at least they've fixed it now!


1

So, I fixed it. By unplugging it, and plugging it back in to a different socket! Suddenly I get audio and the video is perfect. It's not much of an answer but it was the solution for me!


1

I prefer to get my installers from Apple, especially when I get an error with the download like you may have. https://support.apple.com/en-us/HT201314 If your Mac is operational, absolutely get a good backup now before you attempt another install. That way you can escalate to an erase install which removes all your existing system and data and ensures if ...


1

I finally figured out a way to do it. I've kept the Auto Swoosh setting on but I've changed the way I open safari. I created a new application using automator with a single applescript block. It has the following code: tell application "Safari" make new document activate end tell The order is important because its what prevents the spaces switching ...


1

The Touch Bar on Apple's MacBook Pro line of laptops is a capactive touch display not unlike the screen in an iPhone; it's just much longer and thinner. This means it's susceptible to all of the same ailments that plague every other touch screen display - cracked/broken LCD, touch no longer functioning, blank display, etc. Some are obvious (i.e. a cracked ...


1

First, perform a SMC reset by following the instructions for your Mac. https://support.apple.com/en-us/HT201295 As commenters have noted, a Safe Boot is also a useful step. Hold down the Shift key immediately after hearing the startup chimes; you'll notice that login will take longer than normal, and you may see 'Safe Boot' in red letters at the upper ...


1

Upgrading to Catalina solved this problem, and the twin problem I had: App Store on Mojave: "We could not complete your purchase. cancelled".


1

Apple has moved the old MacOS installers around since this article was published. I found the answer on appleinsider here: https://appleinsider.com/articles/19/11/23/how-to-get-an-old-macos-installer-from-apple The article also provides links to earlier versions as well. The link to get Mojave is: https://itunes.apple.com/us/app/macos-mojave/...


1

For Mac OS Catalina, as suggested by @Haravikk, I've confirmed that if you modify the disk image created by Time Machine to have a size limit and a small extra partition, Time Machine will not be able to expand the disk image. Here are the steps: Mount a network disk using AFP to be your Time Machine volume. (Use afp://yourothercomputer.local from Finder ...


1

My experience with Mail has been that it activates itself and windows in the background every time it has a problem connecting to one of its mail services. You can tell this by seeing the "lightning bolt" connectivity icon show up in the Mailboxes sidebar. This user-hostile behavior seems to have no option to disable it and it doesn't seem to matter if the ...


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