This section explains how to create a Qumulo Core USB Drive Installer on macOS or Windows.
Prerequisites
- USB 3.0 (or higher) drive (4 GB minimum)
- Qumulo Core USB installer image (to get the image, contact the Qumulo Care team)
To Create a USB Drive Installer on macOS
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Open Terminal and log in as
rootby using thesudo -scommand. -
Insert your USB drive and then find its disk label by using the
diskutil listcommand.In the following example, the USB drive’s device label is
disk2./dev/disk2 (external, physical): #: TYPE NAME SIZE IDENTIFIER 0: Windows_FAT_32 MY_USB_DRIVE *32.0 GB disk2 -
To unmount the USB drive, use your USB drive’s device label. For example:
diskutil unmountDisk /dev/disk2 -
To write the Qumulo Core USB installer image to your USB drive, specify the path to your image file and the USB drive’s device label. For example:
dd if=/path-to-image-file/ of=/dev/rdisk2 bs=2mNote
If you encounter an Operation not permitted error in macOS, do the following.- Navigate to System Preferences > Security & Privacy.
- On the Privacy tab, grant Full Disk Access to Terminal.
- Restart Terminal and try the command again.
- When finished, remove Full Disk Access from Terminal.
-
Eject your Qumulo Core USB Drive Installer. For example:
diskutil eject disk2
To Create a USB Drive Installer on Windows
To create a USB Drive Installer on Windows, you must use a third-party application such as Rufus. We recommend Rufus because it can detect many USB storage devices (rather than only Windows-compatible ones).
- We don't recommend using other tools (such as Win32 Disk Imager) because they might encounter errors when unable to recognize the USB drive after writing data to it.
- When the operation concludes, you might not be able to view the contents of the USB drive on Windows because the drive will be formatted by using a different file system.
-
Insert your USB drive and run Rufus.
-
Under Drive Properties, select a device and the path to the Qumulo Core USB installer image.
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For Partition scheme, select MBR and for Target System, select BIOS or UEFI.
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Under Format Options, ensure that the File system is set to FAT32 (Default).
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Click Start.
-
If prompted to download a new version of
GRUBorvesamenu.c32, click No. -
When the ISOHybrid image detected dialog box appears, click Write in DD Image mode and then click OK.
-
To confirm the operation, destroy all data on the USB drive, and image the drive click OK.