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9

FIRST: Please read What to do before you sell, give away, or trade in your Mac on Apple's website. As for your question, it doesn't state what model MacBook you're trying to sell, so it's not clear if Mac OS X El Capitan is the original OS it shipped with. However, your best bet is to boot into macOS Recovery using the ShiftOption⌘R keyboard shortcut. This ...


5

As recovery mode is not available on that Mac, your best bet might be to restore with whatever you can any way you can, Then... Once the Mac is up and running, download a version of macOS that will run on that Mac. Just the installer, don't run it just leave it in /Applications. If it STARTS to install just quit the installer. Then use a utility like ...


3

You have to select AppleAPFS on the top, click Erase but if you try to run recovery option, it will install Mojave again. So to have Sierra, I would suggest the following steps: First, connect your Macbook with an ethernet cable as it takes an hour to get full installation (basically depends upon the internet speed also). After this, turn off your computer ...


3

Message To download and restore OS X, your computer's eligibility will be verified with Apple when installing older versions of Mac OS X for me every time meant only one: The certificate which is being used in the OS has expired. This will be correct for every OS later in the future (Sierra, High Sierra, etc). The workaround is that simple: just change the ...


2

Inkscape 1.0 will include first class support for Mac OS X with no need for XQuartz. If you are willing to try alpha software, you can download a dmg right now from https://inkscape.org/release/inkscape-1.0/?latest=1 by clicking on the Mac OS X and then choose Apple's Mac OS X Desktop. Or click, A build from the CI build Alpha Tarball to build from the ...


2

Just perform an erase install. Boot to macOS recovery and then repartition the whole drive and the installer downloads from the internet. How to completely reinstall Mac OS X? My answer here works best if you use internet recovery so you don’t need to mess with making a bootable usb and then get to recovery. https://apple.stackexchange.com/a/315885/5472 ...


2

No, you need to format the whole disk first! Follow this guide to create a mac bootable usb key using createinstallmedia To delete all the content of the hard disk make a linux bootable usb key. You can choose the distro that you prefer, insert it in the mac and hold option during the boot process, then start the system, open gparted and format all ...


2

You almost got it right, but you didn’t wipe the disk first. You’ll want to wipe Macintosh HD in recovery mode first (choose Disk Utility) then repeat the steps you took to install El Capitan.


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Personally, I create a folder within the Applications folder with the same name as the app installed from the DMG and put the extra files in that folder. That way, they're always side by side and I can easily find them. That, of course, is just personal preference. There is no strictly correct way of doing that.


1

You might have been using Apple network-transport protocols, but the underlying file-system your server uses is not HFS or APFS, and probably isn't n-fork capable either. Symlinks in both of Apple's file-systems rely on inode referencing, and if the file-system doesn't have some form of compliance capability then items with metadata as fork references and ...


1

That's the whole point of Gatekeeper. The user needs to manually allow for an application to run or have access to control your computer. Otherwise any malicious application could just grant itself access and permissions to run and control your computer. Your best option would be creating a Readme.txt file with explicit step-by-step instructions on how ...


1

I have the same issue with tmuxinator, And get that error in my case I upgraded tmux with: brew upgrade tmux


1

The benefits of a clean install are that you are left with a system disk whose contents are known, and of 'factory' condition. This will remove any third-party software (which may be interfering with good operation); it will free up space by the removal of 'cruft' - vestigial data files no longer wanted or in use. It will return all settings to their ...


1

Here's what you need to do (example follows High Sierra): Format a USB stick with format Mac OS Extended, scheme GUID Partition Map and name it Untitled Get and run the installer from https://support.apple.com/en-us/HT208969 Run through the installer all until you are asked to restart, but then exit the installer sudo mkdir /Applications/Install\ macOS\ ...


1

Find your original installation (grey) DVD or acquire a DVD that is not bound to the machine (e.g. "Snow Leopard" DVD with the animal picture, not a grey CD). Boot from the DVD Using the disk utility (available from the DVD), fully erase the drive. Install the original OS (e.g. "Snow Leopard 10.6.3") If you installed snow Snow Leopard, get the "10.6.8" combo ...


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This happened to me too, and I simply re-downloaded the Yosemite installer using the App Store.


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