What is the cause of notifications on macOS naming Norton AF or McAfee and requests for a scan or subscription?

2026-05-20T19:52:28Z

My partner's M1 iMac just updated to macOS 26.5. About the same time, repeating popups now appear in the upper-right corner of the screen. They show up every 20 seconds or so, and persist on the screen for about two seconds. I grabbed two photos with my iPhone.

Here's one:

Here's another:

First I restarted the computer. The behavior continued. Next, I rebooted the computer in Safe Mode. The behavior continued. Then I reloaded macOS from the local Recovery partition. The behavior continued.

I ave not clicked on a popup or its button or navigated to the displayed URL. The word "pregioughs" is not found on the computer with a Spotlight search, nor is there any visible software on the iMac from Norton or from McAfee.

What are reasonable next steps to remove this unwanted presence? Would running Recovery from the net be useful? Might EtreCheck give me a clue?

Where are my emails?

2026-05-20T19:36:53Z

I have several custom domain gmail accounts. I read messages on my Mac (Tahoe) using mail.app.

Search never works. I will type a sender's name, email address or title of a message I know exists but Mail will report I have 0 messages matching the criteria. I have tried restarting both the Mac and app, rebuilding the index and also:

sudo mdutil -a -i off
sudo mdutil -a -I on

Nothing fixes the problem. Search remains broken. I have yet to come up with a way of fixing it.

I have plenty of space on my HDD. This problem has pre-existed Tahoe.

Lately, I am sure some message are disappearing altogether. No sign in bin folder or junk. Last week, I saw one email arrive before disappearing completely. I found it as a reply in my Sent folder despite mail stating it was in my inbox. It makes no difference whether I use 'organise by conversation'. It doesn't appear in Gmail's web UI either.

A few months ago, I client sent several messages which I never received. In the end, they resorted to contacting me via social media.

(All my accounts have strong passwords which I change regularly.)

Do these problems sound familiar to anyone? Is it obvious what they're indicative of? What's the fix?

WD NTFS drive doesn't work on macbook pro but Seagate NTFS drive DOES work

2026-05-19T18:04:12Z

I have an existing Seagate drive that works with my MBP. It installed Paragon's NTFS for Mac on my laptop and I can read/write to it.

I recently bought a WD Elements drive. By default, the WD is formatted for NTFS. However, for some reason, even though I have NTFS for Mac installed, it's still read-only.

What do I need to do to get my new WD Elements drive working with my MBP? Someone said to format it for Mac but

My Seagate which is NTFS formatted works perfectly fine with NTFS for Mac and my MBP
I need to move files back and forth from my MBP to my parent's Windows laptop from time to time so it needs to be NTFS

What is the cause of ECC RAM errors on a 2013 Mac Pro?

2026-05-12T18:51:27Z

I have a 2013 Mac Pro (MacPro6,1) with 4x32GB ECC DIMMs. I noticed that all four DIMMs were reporting ECC errors, ranging from the thousands to hundreds of thousands. One of the DIMMs was even wrongly reported by the machine as 24GB. These ECC errors would appear within a few hours after a reboot.

I removed and reinserted all 4 DIMMs, and now even after a day I no longer see any ECC errors or misreported DIMM sizes.

Do anyone know why this is? Is it likely that the issue has been resolved?

Why does my macOS Tahoe (26.2) login password field lose focus when external monitor is connected (MacBook Pro M4)?

2025-12-15T05:54:50Z

I'm experiencing an issue on the macOS Tahoe login screen with a MacBook Pro M4 when an external monitor is connected.

At the password entry screen, the password field repeatedly gains and loses focus at seemingly random intervals. When I manage to type while the field is focused, the character is accepted; otherwise, keystrokes trigger the macOS error beep, as if no input field is active. This makes entering the password and logging in extremely difficult. The behavior occurs with both the built-in keyboard and an external keyboard.

The issue only occurs when an external display is connected. If I disconnect the monitor and reboot, I can log in normally. Once the desktop has loaded, reconnecting the monitor works without any issues.

Has anyone found a reliable workaround or setting to prevent this? Is this a known macOS Tahoe regression related to external displays or login-screen focus handling?

Messages won't sync to iCloud or transfer to new iPhone

2024-12-26T15:52:17Z

Here's our situation: my daughter is trying to migrate from an old iPhone 7 to a (less-old) iPhone 12. The entire migration went without a hitch except for one giant-sized hitch: roughly half of her Message history does not show up on the new phone. On further investigation, we have determined the following:

iCloud Message syncing is turned On on the older phone. However, on that phone Messages are taking up 5.6 GB of storage, and in iCloud messages are only taking up 2.8 GB of storage.
On her Macbook Air (which also is signed in to the same iCloud account) Messages are taking up 2.8 GB of storage (same as in iCloud); and lots of the messages that she can see and read in her old phone do not show up in her Macbook Air. These missing messages appear to be scattered randomly throughout her message history (or at least we have not been able to find any pattern to which ones are missing), and (as far as we can tell) are the same messages that are not showing up in the iPhone 12.

All of this seems to strongly suggest that the problem is that messages are not uploading from the old phone to iCloud. The most obvious thing to try next would be to turn off iCloud Message syncing on the iPhone 7 and then turn it back on again to see if that forces a resync. However, when we attempt to do that we get the "Disable and download?" prompt, and we are very leery of going down that path, because (shocking twist) we have been in this exact same situation before, with a different (even older) phone, and when we hit the "Disable and download?" button all of the messages that had been locally stored but not backed up to iCloud were permanently deleted from the phone and could not be recovered.

(Parenthetically: I don't know if this is what "Disable and download?" is supposed to do, but we have also encountered other people online who have had the same experience, including some who have explicitly warned users not to trust Apple Store "Genius" employees, many of whom will tap that button without understanding that it has exactly the opposite effect of what is intended.)

Just to complete the story, we have tried setting up the iPhone 12 three different ways:

From an iCloud backup -- this obviously did not work, since the iCloud backup is incomplete.
From a local backup on a computer. She backs up her phone regularly but apparently (and to my great frustration) those local backups don't contain her full Message history either, presumably because she has iCloud syncing turned on.
Using "Quick Start". This seemed like a promising idea — skip the iCloud middleman and transfer directly from one phone to the other! But when we opened the Messages app for the first time on the new phone it was initially empty, and started downloading messages from the server.

So here is the ask:

Is there some way to force the old phone to resume syncing without tapping the dreaded 'Disable and download' button and risk losing all of her messages?
Alternatively, is there some way to force a local backup of the phone that contains her message library, again without tapping the D & D button?
(Getting increasingly desperate:) Is there some way (including, I don't know, a command-line tool or 3rd party app) to export her full Message library from the old phone and import them manually into the new phone?
If neither of those can be done, is there some way to export the entire Message library into some giant text archive or PDF file so that she can at least keep and read her old messages, even if outside of the Messages app itself?

Any advice you can offer would be appreciated, we are at our wits' end with this. Practically her entire teenage social life was conducted inside Messages and she really does not want to suddenly lose half of it at one go.

Notes lagging severely after iOS 18 and macOS Sequoia update

2024-12-24T12:04:13Z

I have some big notes, using colored text and titles. On every device (iPhone 16 Pro, iPad, Mac with Apple silicon) they lag badly while scrolling (especially when using collapsible headings.)

Does this seem to be a bad software optimization?

Apple Discussion: Notes App lagging after iOS 18 Update

How to share iPhone screen to Mac in order to take screen shots when iOS won’t allow them?

2024-11-20T11:31:14Z

Back in the day I was using this trick: https://medium.com/mac-os-x/how-to-mirror-your-smart-phone-screen-in-mac-os-x-2daf018aae4d

Launch Quick Time Player in your Mac.

Select New Movie Recording under File Menu (⌘+⌥ + N)

In the popup window select the down arrow near record button.

Choose the iPhone as your camera and microphone if needed.

That’s it. Now you are mirroring the iPhone screen on your Mac.

BUT:

I'm pretty sure I've enabled all the permissions when connecting my iPhone via USB-C cable that is capable of transmitting data, not a dumb cable.

I just want to take a screenshot from an app that prevents me from taking screenshots, I thought that connecting to Mac is the simplest way to accomplish this and I would rather avoid involving another camera and post processing the image in Photoshop.

Can the iOS restriction on screen shots be avoided by connecting to macOS?

"Open.exe" from unidentified developer exists as a executable in my login items?

2024-04-30T04:50:02Z

I cannot find anything on this binary - It does seems to function as stated when I use the command to open files, but I never installed it nor do I see it as a default executable in the bin folder of other Macs.

Not sure why it exists as a log in item:

Any ideas? Perhaps part of a .pkg that came with something else?

How can I fix printing to Brother MFC after upgrading to macOS Sonoma?

2023-12-31T15:52:09Z

I have upgraded two computers to Sonoma - one from Ventura that still can print and another from Catalina that can not.

Printing fails over the wireless connection or by attaching the printer directly by USB. The printer is Brother model MFC-L5750DW. It claims the printer is offline, and keeps "looking for printer."

How can I address the failure to print from the second Mac?

Mac Mail doesn't work right on Sonoma

2023-12-31T15:06:06Z

Since updating to Sonoma (one computer from Ventura, the other from Catalina), I have had two problems.

Most important. On both computers many emails arrive in Mac Mail (16.0) with the body empty. Web mail works, but I prefer to use Mail app as it helps me carefully file my email in folders.
On the computer updated from Catalina I am unable to flag emails at all. On the one updated from Ventura no such problem.

Is there a mail remedy for these issues?

How do you add an Apple Music track to your library with AppleScript?

2023-12-31T09:24:40Z

Given an album ID (e.g. 1646945378) and a track ID (e.g. 1646945384), is there a way to add a track to the library using AppleScript/JXA?

macOS: Sonoma 14.2
Music: 1.4.2.83

I know you can do something like

duplicate current track to playlist "Library"

Ideally, I don’t want to play the track before adding it to my library, but I can’t find a way to get a shared track object from just the album and track IDs.

I have figured out how to open the album and select the track:

set albumID to "1646945378"
set trackID to "1646945384"

tell application "Music" to open location "itmss://geo.music.apple.com/album/" & albumID & "?i=" & trackID & "&ls=1&app=music"

However, I can’t get the selected track. This code logs empty lists:

tell application "Music"
  log (get browser window 1's selection)
  log (get selection)
  -- Because an album, not a playlist, is being browsed, ‘get browser 1's view’ doesn’t work either
end tell

As a last resort, I thought I could try manually clicking the add to library button, but I can’t figure out how to tell if a track is selected or not as all of the UI elements seem to have selected:missing value.

tell application "System Events"
  tell process "Music"
    set tracksList to get window 1's splitter group 1's scroll area 2's list 1's list 2
    set trackGroups to tracksList's groups

    -- With the example track above, the first track is selected

    set t1 to get trackGroups's item 1
    set t2 to get trackGroups's item 2

    -- Each group has one child UI element: another group. This group contains stuff like
    -- the track number, name, buttons, etc.
    log (get t1's properties) -- focused:missing value, selected:missing value
    log (get t2's properties) -- focused:missing value, selected:missing value

    log (get t1's group 1's properties) -- focused:false, selected:missing value
    log (get t2's group 1's properties) -- focused:false, selected:missing value
  end tell
end tell

I could use the Apple Music API to get the track number of the track I want to add to my library (or in my specific use-case I wouldn’t even need to use the API to do this) and click the add to library button that way.

However, this all seems quite tedious and annoying for something that I believe should be a builtin AppleScript command. Is there a better/easier way of doing this?

Applescript play music from iTunes URL (using system events to click, answer doesn’t work anymore due to new(ish) Music app)
Applescript to cause iTunes to play an album by Apple Music URL? (no answers)

Why is Safari handoff so slow/doesn't work?

2023-01-04T22:46:15Z

My iPhone 7 iOS 15.7 can see when my MacBook 15 macOS Monterey has bluetooth/wifi turned on, and a page open in Safari, because only in that situation does the "open ... from MacBook" appear at the bottom of the app selector.

However, after clicking it, Safari opens and a blue loading bar appears in the address bar, but the contents of the address bar are never filled and the blue loading bar never progresses.

I've tried basic things like turning on and off wifi and bluetooth on both devices and restarting both devices. I've been having this issue for a long time.

What could be causing it? How might I be able to fix it?

Creating a virtual network through USB-port on thunderbolt

2022-09-08T12:32:43Z

Currently I am using a Windows VM so that I can use PUTTY to SSH into a device that is connected through a USB port to my MAC. This works fine. However, I am unable to SSH into the device on MacOS through iterm2 - I suspect that it is because the network settings aren't what they are supposed to be. When I plug the device into my thunderbolt adapter on my Mac and run my Windows VM the device shows up perfectly fine and creates a new network in Windows:

However, on MacOS Thunderbolt bridge seems to be stuck on "inactive": (ignore the subnet mask mismatch, I have tried with 255.255.0.0 too)

Checking the MAC address of the Thunderbolt Bridge and looking at the settings in ifconfig:

bridge0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
options=63<RXCSUM,TXCSUM,TSO4,TSO6>
ether e2:74:33:e3:a6:c1
inet 192.168.2.1 netmask 0xffffff00 broadcast 192.168.2.255
inet6 fe80::14a7:af36:419d:645c%bridge0 prefixlen 64 secured scopeid 0xd
Configuration:
    id 0:0:0:0:0:0 priority 0 hellotime 0 fwddelay 0
    maxage 0 holdcnt 0 proto stp maxaddr 100 timeout 1200
    root id 0:0:0:0:0:0 priority 0 ifcost 0 port 0
    ipfilter disabled flags 0x0
member: en3 flags=3<LEARNING,DISCOVER>
        ifmaxaddr 0 port 11 priority 0 path cost 0
member: en4 flags=3<LEARNING,DISCOVER>
        ifmaxaddr 0 port 12 priority 0 path cost 0
member: en12 flags=3<LEARNING,DISCOVER>
        ifmaxaddr 0 port 10 priority 0 path cost 0
member: en13 flags=3<LEARNING,DISCOVER>
        ifmaxaddr 0 port 9 priority 0 path cost 0
nd6 options=201<PERFORMNUD,DAD>
media: <unknown type>
status: inactive

This is clearly a software issue as the port works fine in the Windows VM but for some reason networking seems to be far more complicated on Mac.

How do I replicate the Windows behavior on MacOS? I want the wifi connected to the internet, and I want a separate LAN connection through the USB cable to my device so that I can ssh into it. The device is not connected to the internet.

My .ssh/config file:

Host inst
    HostName 192.168.137.2
    BindInterface bridge0
    User testuser
    IdentityFile ~/.ssh/id_rsa_testuser
    Port 22
    IdentitiesOnly=yes

$ssh -vvv inst

OpenSSH_8.1p1, LibreSSL 2.7.3
debug1: Reading configuration data /Users/westman/.ssh/config
debug1: /Users/westman/.ssh/config line 7: Applying options for inst
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 54: Applying options for *
debug2: resolve_canonicalize: hostname 192.168.137.2 is address
debug2: ssh_connect_direct
debug1: Connecting to 192.168.137.2 [192.168.137.2] port 22.
debug1: ssh_create_socket: bound to 192.168.2.1
debug1: connect to address 192.168.137.2 port 22: Operation timed out
ssh: connect to host 192.168.137.2 port 22: Operation timed out

Applescript search and delete specific Mac Text Messages

2022-07-27T01:46:42Z

Hackers have daily targeted my Mac Messages app. I get a dozen or so messages daily from similar but slightly differing handles.

For example:

All of the handles using an email address has consistently utilized "pqe@icloud.com" at the end of the address. Yet, last week, these hackers are now using phone numbers too. So I can't programatically search for messages by handle now that email and phone number is used.

However, the message body copy is the same:

"Hello there"

Can I use actionscript to specifically target any message with "Hello there" string, then delete it without all the modal windows asking if I am sure, or if I want to report spam? And also a schedule the script to run every minute or so?

Thank you so much!

Bruce

How to show timestamp from iPhone voice memo

2022-06-08T15:39:57Z

I need the time stamp from my voice memo on my iPhone 7s to dispute a mv ticket. How can I gain access to this information?

Voice memos only show the length of a recording but I also need the exact time of the recording.

Thanks!

What (if anything) can I do to stop my Apple Watch from waking me up to say "Time to stand!"?

2022-03-19T01:09:20Z

I started using an Apple Watch to assist in a CBTI effort¹ to slightly increase and regularize my sleeping hours.

My first impression is very positive and I'm finding various reminders (related to sleep and exercise) quite helpful. However a few times I've been woken at odd hours in the early morning by the "Time to stand!" message.

It's not a big deal and I easily fall asleep or decide to stay awake if it's close enough to 06:00 the time I've set as my goal, but I'm still curious if there's some adjustment to the software's settings or things in my behavior or environment that can be adjusted to reduce this.

I'm assuming that if the software is telling me to stand, it means that it calculates that I'm awake when I'm actually sleeping. Certainly there will always be some noise in this calculation, but perhaps I can change something to reduce this noise?

Question: What (if anything) can I do to stop my Apple Watch from waking me up to say "Time to stand!"?

On my watch under >Focus I see both >Do Not Disturb and >Sleep options, which I think means that I can prevent the phone from issuing the messages during certain times, but I'm wondering if there are other ways I can prevent this, perhaps by enhancing the watch's ability to know when I may be asleep in the first place.

I keep my watch and phone linked via Bluetooth most of the time, so if there were for example some way that my phone's light sensor (that it uses for screen brightness) could tell my watch "Shhh... sleeping" via Bluetooth that would work nicely in my case.

iPhone SE II (v15.3.1)
Apple Watch S7 (v8.1)

¹from the link:

People with insomnia should evaluate or have their sleep patterns evaluated and take into account all possible factors that may be affecting the person's ability to sleep. This would involve keeping a sleep diary/journal for a couple of weeks. The journal will help to identify patterns of thoughts or behaviors, stressors, etc. that could be contributing to the person's insomnia.

I snapped a photo of my watch waking me up and telling me to stand at 02:51 by fumbling for my phone in a dark room:

Apple fsck.hfs borks on corrupted journal

2022-01-09T20:58:06Z

Got message, "Unrecognized disk" and a choice of eject, initialize, or ignore

I chose ignore, then used "repair disk"

Made no difference.

Can this be fixed without reinitializing?

How to make Google Chrome stop asking to be the default browser?

2021-06-15T19:46:33Z

I installed Google Chrome on my MacBook for local development and testing. When I start it, it will nag about making it the default browser once in every while.

How can I stop it nagging me about that?

GPU disable on boot was successful for months – but cannot execute sh /force-iGPU-boot.sh anymore from Single User Mode

2021-03-14T19:52:07Z

I had this common GPU issue on a 2011 MBP that I was able to solve with the super detailed post by the user "LаngLаngС" (thanks so much!) as found at GPU problem - Boot Hangs on Grey Screen.

Unfortunately, a new issue has arisen that prevents me from running the script. I'll explain:

To solve the GPU issue I everything as written in LangLangC's post and I also had the executable sh script on my desktop—so when I had to boot the Mac again, I did this in single user mode with CMD + S, and then typed sh /force-iGPU-boot.sh and then reboot. This would boot my machine always as normal with the internal GPU.

So far, so good—until yesterday.

When trying to reboot again from Single User Mode, I got this new prefix "sh 3.2#" and the lines looked different. It says that the volume is "read only".
When I try to execute sh /force-iGPU-boot.sh, it says, "file or directory not found".
I can't run sudo commands as it says "command not found".
When I try to remount with mount -uw, it doesn't work – it always says "device is write locked".

When I type exit or reboot, the system actually seems to boot "normal", if there wasn't the GPU issue! Meaning that if I cannot run the script "force-iGPU-boot.sh" from the single user mode, I cannot boot the GUI Mac OSX properly. Unfortunately, I also cannot execute the sudo commands. I also tried to boot the Mac in target mode and "repair" the drive with the disk utility of another Mac, but that never worked either.

I was googling a lot and tried a lot, but nothing worked yet. Since I am not very familiar with these kinds of issues, I was hoping to find an answer here, where I found the first answers to my GPU problem.

Basically, my "new problem" is that I cannot run the automated script that I saved on the desktop or the sudo commands from the single-user mode.

This is the output of sw_vers:

while in single-user mode.
    $ /sbin/fsck -fy
    $ /sbin/mount -uw /
To boot the system:
    $ exit
-sh-32.# sw_vers
ProductName:     Mac OS X
Product Version: 10.13.6
BuildVersion:    17G14033
-sh-32#

Is anyone able to offer a suggestion to run this script?

Moving macOS Mail App Icon From Dock to the Menu Bar

2021-02-22T17:40:42Z

The Mail app built into macOS isn't the nicest thing in the world, the UI looks dated and Outlook is a much better alternative (for me at least).

The problem that I am facing is that I need the macOS Mail app to start at login and be running in the background due to the way AltStore works. With Outlook also open, I have two Mail apps open, thus crowding my dock.

Is there a way to move the macOS Mail app away from the dock to the menu bar? Or in general, is there a way to move any app from the dock to the menu bar?

I use an app called Hidden Bar to collapse and hide some of the menu bar icons, with that, I will be able to completely remove the macOS mail app from my sights, even though it's still running in the background.

in the callhistory.storedata database, table - zcallrecord, what are the values for zdisconnected_cause and what do they mean?

2021-01-05T21:17:53Z

I am looking on an ios device. The field zdisconnected_cause is an integer field, but I can't find an explanation of what the values of the field mean, or what blanks mean. Anyone know where a table structure and definitions are located for apple database? Is there a website? A book?

How can I change the SMB server address my Music files are on?

2020-09-13T19:34:34Z

I store my iTunes library (now Music.app) on a Samba server. The server's DNS name has changed, but the volume/share name has not. The share is called Media and is mounted at /Volumes/Media

However, I am unable to sync my iPhone or play music in Music.app because it somehow still tried to connect to the old DNS name, even though from what I can tell the path names coded in the library don't contain the Samba server name. However when i try to sync my iPhone I get a message

*There was a problem connecting to the server "old.server.dns.name"

This happens even if I first use Go > Connect to server... in the finder and connect to the server, so my music is available at the desired path /Volumes/Media/music...

I don't want to delete my library and re-import because I'll lose all my star ratings and play counts.

How can I resolve this? How can I update the Samba server path for the music in my Music.app library?

Can't delete Alex voice from the iOS simulator

2020-01-09T12:22:02Z

I'm working with iOS voices for accessibility reasons. In iOS simulator I've tried to install Alex voice which is one of the most popular English voices. To choose it I downloaded it first. However, after that, the voice looks like something between enabled and disabled.

E.g. for Allison I see that it's not downloaded hence it's not available for me. On the other hand, Samantha is downloaded, so I can navigate further and edit the voice, for example I can delete it. But for Alex I can't neither delete it nor select it to use later.

When I try to press Erase All Content and Settings... for the simulator, sometimes it doesn't change anything, but sometimes it erases Alex voice, but situation returns after downloading this voice. Is there any other way how it Alex can be installed on the simulator?

Bluetooth appears "Permanently" not available - macOS 10.15

2019-11-02T23:33:37Z

For some reason after an "upgrade" to 10.15 Catalina, Bluetooth appears to be "Permanently" not available.

How can I diagnose which “a device” to connect to get Bluetooth to work ?

Upgraded to 10.15.2 but no better.

Any suggestions? Does this have anything to do with Bluetooth pan internet sharing?

Option for Second Alert on Calendar Events Disappeared After Mojave 10.14.6 Update

2019-10-07T15:09:26Z

I just updated my Macbook Pro to Mojave 10.14.6 and noticed that I can no longer set a second alert on events I add to my Calendar. I'm not using any external calendars or accounts, just my iCloud. I can still set second alerts on my iPhone, just not my computer.

Dynamically adjust image canvas for images

2019-10-06T12:40:59Z

I am new to Mac.

In Windows OS, I use MS Paint to dynamically adjust the canvas using the mouse by dragging the borders within the GUI to paste multiple cropped images into it to create a single new image.

Is there a way to do this in macOS using Apple default or paid apps where I can dynamically resize the canvas using the mouse? Manually entering percentages or dimensions to resize the canvas (either in the app or in terminal) is confusing to me to achieve the right canvas size.

MacOS Startup Disk error: "Running Bless to Place Boot Files Failed" (triple boot, MacPro 4,1 -> 5,1)

2018-08-02T19:13:47Z

My question is, how do I add a (properly-booting) Ubuntu volume to High Sierra's "Startup Disk" Menu?

Running MacOS High Sierra, Windows 10 (Legacy, not EFI), and Ubuntu 18.04 (triple-booting on a 2009 MacPro 4,1 w/ firmware upgrade to 5,1). I installed Ubuntu after Windows using the procedure in this link. I have a second EFI partition for Ubuntu (scroll down for output from diskutil list). I've placed / renamed the boot files so that all three operating systems boot normally using Apple's Startup Manager (holding ALT during bootup) - see this link and this link for guidelines:

However, I cannot select Ubuntu as a bootup option through the "Startup Disk" tool in High Sierra. Initially, the "Startup Disk" menu had no entry for Ubuntu. Then, I followed these steps to create a dummy mach_kernel file and place a SystemVersion.plist from in /System/Library/CoreServices/ my Ubuntu EFI partition. Now, Ubuntu appears in my "Startup Disk" menu, however I cannot select it. "Startup Disk" fails to select Ubuntu, and says, "Running bless to place boot files failed."

Currently, I'm working around this by using the following bless command to boot directly into Ubuntu from High Sierra (only works if csrutil is disabled in Recovery):

sudo bless --device /dev/disk0s5 --setboot --nextonly && sudo reboot

It works for now, but I would appreciate any insights on how to add Ubuntu to High Sierra's "Startup Disk." Thanks!

Output of diskutil list:

/dev/disk0 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *2.0 TB     disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:                  Apple_HFS Macintosh HD            1.5 TB     disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
   4:       Microsoft Basic Data BOOTCAMP                290.3 GB   disk0s4
   5:                  Apple_HFS Ubuntu                  200.3 MB   disk0s5
   6:                 Linux Swap                         8.0 GB     disk0s6
   7:           Linux Filesystem                         201.5 GB   disk0s7

Keyboard shortcut for right-click in current cursor position on OS X? ('Menu Key' on Windows)

2016-08-10T12:12:51Z

On Windows computers, there is often a key for this. Called the 'Menu Key'

There is also a keyboard shortcut in Windows, when the key is missing. Shift + F10

A similar request was made on the question How to make right click for the selected content using only keyboard on a Mac?, but the question was not sufficiently clear, and the answers provided demonstrate how to make a right-click where the mouse pointer is on the screen, which is not useful.

What we need is a shortcut to make a right-click where the cursor is on the screen—the same as the Windows functionality.

Mouse pointer:

Cursor:

How do I open the context menu from a Mac keyboard?

2011-12-01T15:42:09Z

In Windows, one can hit Shift+F10 to access the "Context Menu." But a similar keyboard action doesn't seem possible on Mac. One potential application...

When I make a spelling error in a document, Lion gives me the option to correct the error by right-clicking (or ctrl-clicking, two-finger tapping, etc) on the misspelled word and bringing up the context menu.

How can I open this menu from the keyboard? And is it possible to access the Context Menu from a Mac keyboard?

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