The download of macOS Sierra is not linked to an Apple ID. In fact, users can download it without having to sign into the Mac App Store.
Another recent change made by Apple is the inclusion of an additional macOS Recovery option. Instead of two, we now have three options:
commandR to reinstall the latest macOS that was installed on your Mac, without ...
UPDATE: On recent versions of macOS (tested with High Sierra 10.13.4) you can restore from a networked drive directly from the "Restore from Time Machine Backup" option in the recovery mode. The following steps are not required (but are super awesome!).
– admin account & password
– AFP/SMB-share & server IP-address
Boot the ...
If you're already in Recovery Mode doing some operation you don't want to interrupt, you can try this trick to run caffeinate.
Go to the Wi-Fi icon on the menu bar and pull it down. Select "Join Other Network..."
The "Find and join a Wi-Fi network" dialog will be there, but look at the application title. It's "macOS Utilities." Go to the Utilities menu ...
These Articles HT201472 and HT201365 from Apple clearly explain what you can do to in case your phone is lost or stolen.
To Answer all of your questions:
Yes there is a way to prevent anybody from using your phone. When the phone gets stolen you put your device in lost mode as explained in the articles above. No one will be able to re-use / re-active your ...
I was having the same issue, this is how I fixed it.
As we are not able to get to Single User Recovery Mode by using the key sequence, Command + R + S at startup to run csrutil disable, it is not taking you to Single User Mode.
Start by booting the computer in standard Single User Mode using Command + S. Once you are at the command-line, run the following ...
This thread is a bit old, but in case someone else finds themselves looking for the answer, this just worked for me:
To move / re-install your licensed copy of Microsoft Office 2011 for Mac on a different computer / OSX installation, and re-authorize it without the license / serial / key available, copy the following from the old machine to the ...
The best thing you can do is creating a new admin user and inspecting the assaulted main user/the system.
Boot to Recovery Mode (hold cmdR while booting).
Unlock and mount the main encrypted volume either with Disk Utility or Terminal:
#list all CoreStorage items
diskutil cs list
#unlock the locked Logical Volume (replace lvUUID by the UUID found above. ...
I've found a way:
Enable Select boot device at startup in the virtual machine
After the startup of the VM press any key to enter the boot device menu
Select Boot Maintenance Manager
Select Boot from file
Search your recovery volume (usually it's the 2nd one listed)
Select boot efi
In Yosemite the mouse ...
I asked after this while attending WWDC 2015 and was told that the "Encryption Paused" issue was addressed in 10.10.3.
The root cause was a problem with resizing the CoreStorage volume during the encryption process. When the CoreStorage volume was unable to grow, the encryption was paused and could not resume until the resize issue was addressed.
To fix ...
The proper GUID of APFS partitions is 7C3457EF-0000-11AA-AA11-00306543ECAC.
The default pMBR was replaced with an old-style MBR, probably by the Linux installation!
Your boot system (in Internet Recovery Mode) seems pretty old. Any disk or partition verification executed with diskutil may yield some bogus result. In no case try to repair anything with ...
On boot, hold ⌘ cmd + ⌥ alt + P + R until the second boot chime. This can fix a variety of things including problems due to recent kernel panics.
On boot, hold ⌘ cmd + R to boot into the Recovery HD. If this fails, hold ⌥ alt on boot, and select Recovery from the options available.
From here, you can open Disk Utility and select ...
I had the same issue since the beta and the official release did not solve this issue.
In the terminal I had the following output:
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *251.0 GB disk0
1: EFI EFI ...
This is a bug in the recovery Mode, also the same issue if you create a USB Device for install. Try to load Recovery Mode again and choose one the the four available options that should get the menu back.
I've tried boot from USB Device three times until the menu was visible.
There is no easy way to bypass Activation Lock at the moment, not even resetting with iTunes.
That will only allow the thief to erase the phone contents.
If the thief is able to guess your passcode, he will still be stuck with an un-upgradable, un-sellable device.
If your phone has Find my iPhone turned on, it cannot be used without your iCloud ...
You can't really download the OS X El Capitan installer app without the App Store.app easily. You can download the raw (unverified) pkg installer though, but to verify it and convert it to a legit OS X Installer.app App Store.app and a newer OS X system is required again. So simply downloading it on a Windows system won't help.
To solve your problem simply ...
Considering you can't boot into an OS, the first things I'd try are resetting the NVRAM and SMC. Below are the steps for doing so, as well as the order you should do it.
1. Reset the NVRAM
Older Macs had what's called Parameter RAM (PRAM), newer Macs use Non-Volatile Random-Access Memory (NVRAM). Here’s how to reset it on your particular Mac:
Shut down ...
Boot to the Recovery HD by holding ⌘R on boot. Choose Disk Utility, select your system partition from the sidebar, then select File → New Image → Image from "<partition name>". Follow the instructions to choose a save location.
To restore your image, boot to Recovery, create a partition of equal size or larger than the image you saved (if necessary), ...
You can set NVRAM options from command line to boot into recovery:
sudo nvram "recovery-boot-mode=unused"
This will put your system into recovery mode.
NVRAM (nonvolatile random-access memory) is a small amount of memory that holds certain settings and can be accessed at boot by the Mac's firmware.
I spoke with Apple and my case was escalated. I sent in logs for the engineers to evaluate, and they determined that the FileVault encryption had failed. As other users have reported, the only suggestion was to make a Time Machine backup, wipe the drive, reinstall Yosemite, and restore from the Time Machine backup.
A few important notes (from forum posts ...
After battling this problem for hours I just found a great, reliable solution!
If you reboot holding Command-R-S then you can get into an undocumented combined recovery mode and single user mode, this will go directly to the command prompt without the graphical interface but you will be in recovery mode and can enter the csrutil disable command successfully....
Edit: to answer your actual question, you can't do it from anywhere except Recovery Mode, so anything you do must be done from there.
Tested on a similar 4,1 upgraded to 5,1 [but I have a flashed graphics card so I could see what I was doing]
Reboot & at the chimes hold Cmd ⌘ R for about 10s.
Wait until you get to Recovery Mode, which for me took ...
Contrary to past OS releases where the N-1 installer is removed soon after version N launches, Apple has an article with links to the store and detailed requirements for getting and installing macOS Sierra (even after High Sierra is out).
https://support.apple.com/en-us/HT208202 - How to download macOS Sierra
macOS Sierra Installer on the Mac App Store
To start with your MacBook Air will not run Mavericks, so you can put that one aside as incompatible.
As for Yosemite, the earliest possible version that will run on your model MacBook Air is actually Mac OS X 10.10.2 (build 14C2043). My guess is that the copy of Yosemite you've downloaded is either 10.10.0, 10.10.1 or a build version of 10.10.2 earlier ...
You have one drive.
Your diskutil list command tells you everything you need to know: there's only one entry that has a "physical" characteristic to it and it's disk0.
When you boot into Recovery, there are many RAM disks that get created and in your case they are disk1 through disk19. If you notice on each identifier, it describes it as a "...
I want to share the solution that fixed the problem for me.
First of all, my El Capitan install failed, resulting in that after boot the login screen was shown, but after a login, there was a kernel panic and the Mac restarted.
So I tried to reinstall via the Recovery Mode, but at the point of selected the HD, I got this message: FileVault conversion in ...
The drive is locked using FileVault encryption and cannot be accessed until you unlock the drive. This may be set to a master password of yours, and often is set a while back. You may want to try older passwords (or versions of them) to see if any of those work.
To unlock the drive:
Boot into the recovery mode
Launch Disk Utility
Select the drive in disk ...
The netboot image loaded by booting to Internet Recovery Mode apparently doesn't contain the executable csrutil.
The OS X Base System loaded while booting to Recovery Mode should contain it though. By pressing cmdR a 2-step procedure is initiated: First the Mac is booted to Recovery HD and then after expanding BaseSystem.dmg to "OS X Base System" (which is ...