How to create an OS X Yosemite installer USB stick

Apple released last Thursday (10-16-2014) Mac OS X 10.10 aka. Yosemite. If you would like to create an OS X installer Boot stick, just follow the instructions which I already wrote down for Mavericks. Its the same steps. Here are some screenshots, which documented how I reformatted my old Mavericks USB stick for use with Yosemite:

 

Partition USB Stick

Now list your disks and see where your USB stick was mounted. Mine is mounted under /Volumes/USBSTICK:

diskutil list

Now you can follow the instructions on how to create the stick with the command line utility inside the Yosemite installer app:

Createinstall media Yosemite

Synology DiskStation 5 – Mapping of external USB drives

The mapping of external USB drives in Synologys Diskstation 5 is a mystery to me. The order of connected drives does not seem to be of interest and keeps being the same even after a reboot. Especially after the latest update to DiskStation 5, my DiskStation 213+ assigned other than usual drive numbers to my external USB drives. This results in broken backup plans and network volumes.

A little Google research led me to this forum entry together with a suitable solution:

  • Unmount/Eject all connected external USB drives
  • Disconnect the drives from the DiskStation
  • Connect with telnet/ssh to your DiskStation and edit the file /usr/syno/etc/usbno_guid.map
  • The number gives you the name of the usbshareX mount point, while the guid behind the equal sign identifies your USB drive. The last entries will propably your connected drives as you can access them from their usbshareX mount points.
  • Remove unwanted entries and restore the number to their original position.
  • Reboot the DiskStation.
  • Reconnect your Devices, starting with the drive with the lowest number first.
  • All done.

How to create an OS X Mavericks installer USB stick

So you want to install OS X Mavericks on your older Mac from an USB stick. But the Mavericks installer is just an app which wants to upgrade your running Mac OS X, so you don’t have the option to start a fresh installation.

But there is an option available:

1. Download OS X Mavericks

Go to the Mac App Store and search for Mavericks or click this direct link. This will bring you directly to the Mac App Store page for Mavericks. You can download the installer, even when you are already on Mavericks:

Mavericks AppStore

The download will take its time to complete. If it’s finished, go to step 2. Otherwise you can skip the next part, as you have already downloaded the installer.

2. Cancel the installation

When the Mavericks installer opens, don’t continue it. Close it over the menu or press „alt+q“ to quit the installer.

3. Connect the USB stick and prepare it

Now connect your USB stick. I recommend a stick with at least 16GB space available (like this from SanDisk). This stick will be formatted, so make a backup of its content or use a dedicated one especially for this sole purpose.

  • Open the „Disk Utility“ and select your connected USB Stick.
  • Choose Partition and select 1 Partition. Set the name to „stick“. This way we can identify it better in step 4. Select „Mac OS Extended (Journaled)“ and assign the complete space to this partition:
    Partition USB Stick
  • Be sure to select „Options“, „GUID Partition Table“ instead of „Master Boot Record“:
    GUID
  • Now press „Apply“ and let the Mac format the stick.

4. Create the Mavericks installer

Open the „Terminal“ application and enter:

[code]
sudo /Applications/Install\ OS\ X\ Mavericks.app/Contents/Resources/createinstallmedia –volume /Volumes/untitled –applicationpath /Applications/Install\ OS\ X\ Mavericks.app –nointeraction[/code]

Replace the „/Volumes/untitled“ with the name of the Volume we’ve created in step 3, e.g. „/Volumes/stick“. This command will ask for your Mac administrator password, so enter it and proceed.

Now the installer will create a bootable USB stick. You should see something like this:

[code]
Erasing Disk: 0%… 10%… 20%… 30%…100%…

Copying installer files to disk…

Copy complete.

Making disk bootable…

Copying boot files…

Copy complete.

Done.
[/code]

If you look your desktop, you should see a new volume called „Install OS X Mavericks“:

Install OS X Maverics IconIf you open it, you will see the „Install OS X Mavericks.app“ which you could now execute to perfom a normal upgrade installation. But you wanted this stick especially for the creation of new clean installation, therefore reboot your mac.

5. Boot into the installer

During the startup sound, press the „alt“ key. This will open up the boot menu selector. You can now select the Volume we’ve created. It should be a yellow symbol with an USB logo on it.

 

Congratulations, you’ve created a bootable Mac OS X Mavericks installer USB stick, which you could now use to create a fresh installation of Mac OS (or to create a Fusion drive).

Huawei UMTS USB Stick E169

Mein neuestes Spielzeug aus der Eplus Vertragsverlängerung ist vorgestern angekommen und wurde direkt mal ausprobiert. Die auf dem Stick mitgelieferte Software stellte bei mir mit meiner Simyo Karte keine Verbindung her. Abhilfe konnte hier erst die neuere Software von der Eplus Seite schaffen. Sie sollte eigentlich auch für andere Mobilfunknetze geeignet sein, da man andere AccessPoint Namen eintragen kann.

Weitere Infos und Angaben gibt es in diesem kurzen Test eines O2 Users bei Macnotes.de.