Okay, I have gotten this to work, and have successfully restored an iPhone 6 on Ubuntu 16.04. Posting my steps here as I’m sure there are plenty of ubuntu users like me who would enjoy knowing there is a (relatively) easy way to get iTunes working without having to borrow a Windows computer from a relative.
1. Install VirtualBox
Install VirtualBox from virtualbox.org; pick the one that’s labeled for Linux hosts, since we are installing a virtual Windows on Linux (Linux is the host). Other virtualization apps may work too but I didn’t test them.
2. Download a Windows Virtual Machine image
Go to developer.microsoft.com and download a Microsoft Edge virtual machine. It’s free. Make sure the platform matches the virtualization software you are using (VirtualBox). The one I used was the Win 10 Stable version, but the others probably work too. Note that these images are very large (~4.7 GB) and can take a while to download.
3. Extract the .ova image
Extract the downloaded .zip to get the MSEdge - Win10TH2.ova file. The file is large, and it takes a while to extract, but on my computer Archive Manager was able to unzip it just fine.
4. Import the .ova image
Double click the .ova file; Ubuntu should automatically open it in VirtualBox. Let VirtualBox import the .ova, all of the default settings are fine except for the Virtual Disk Image file setting, which should be changed from .../VirtualBox VMs/MSEdge - Win10TH2_1/MSEdge - Win10TH2-disk1.vmdk to .../VirtualBox VMs/MSEdge - Win10TH2_1/MSEdge - Win10TH2-disk1.vdi (the file extension is changed from vmdk to vdi. This is important for the next step, increasing the virtual hard disk size.
5. Increase the virtual hard disk size
This is probably one of the more unexpected things you have to do to make iPhone backups and restores work properly. The default virtual hard disk size VirtualBox allots the virtual Windows 10 is simply not big enough to store most iPhone backups, which will cause them to fail. Fix this by navigating to your Windows VM directory (probably:
cd VirtualBox\ VMs/MSEdge\ -\ Win10TH2
and running this command:
VBoxManage modifyhd MSEdge\ -\ Win10TH2-disk1.vdi --resize 128000
The number 128000 represent the size, in MB, that you’re resizing the disk to. 128 GB is probably enough to hold two or three iOS backups.
6. Increase the Windows partition size
Just upping the disk size isn’t enough to make iTunes aware it has more space to use. You have to use the Windows diskmgmt.msc command (in the ‘start menu’ or whatever Microsoft calls it these days) to open up the Disk Management tool. Then right click on the blue “Windows 10 (C:)” partition and select Extend Volume. By default it will expand the partition to fill the entire 128 GB.
7. Install iTunes
This step is pretty simple, just install iTunes on your virtual machine the same way you would install iTunes on any regular Windows computer.
8. Enable USB visibility
Your virtual iTunes won’t be able to see your iPhone because USB is disabled by default. First you need to turn off the virtual machine (if it’s running), and install the USB extension pack from VirtualBox; it’s labeled VirtualBox 5.0.24 Oracle VM VirtualBox Extension Pack.
Note that the information at https://help.ubuntu.com/community/PortableDevices/iPhone/iTunesVirtualBox is very out of date. I followed all of the steps but I’m not sure this is really necessary. If you do, do not perform step 4 (adding the line none /proc/bus/usb usbfs devgid=123,devmode=664 0 0 to etc/fstab), this will cause a black screen of death on your Ubuntu installation. Fortunately, if this does occur to you, you can always use the Emergency mode command line to navigate back to fstab/etc (cd .. ; cd etc) and use nano (nano fstab) to remove the offending line.
Next go to the Settings editor in the VirtualBox Manager, and go to the USB tab. Check the Enable USB Controller box, and pick USB 2.0 (EHCI) from the choices. (If it’s grayed out, remember to turn off the virtual machine.) Then add an empty USB filter (blue circle) to the USB Device Filters list. Do not select a specific filter (green plus sign) like “Apple Inc. iPhone”, because that filter will fail to detect an iPhone in Recovery Mode, whereas the null filter will.
9. Congratulations! You’re done!
You can now use iTunes with your iPhone on your Virtual Machine completely normally. You can even back up, update, and restore the iOS firmware.
Best Answer
I found the following procedure listed on a couple of forums and websites. Just tried it out with my iPhone 5S on a Windows 7 VM with a Ubuntu 14.04 host and it works fine.
On your host Ubuntu machine, run the following command -
Replace
<USERNAME>with your username, of course.Log out and log back in. (This seems to be important!)
Run VirtualBox. Open the Settings to your Windows VM. Under the USB tab you'll be able to choose your Apple device by clicking on the
+button on the right.Run your Windows VM now and install iTunes. You'll be able to sync and backup like normal.
Hope this helps you out!