Using mount on a JFS2 File System. The mount command can also be used to access a snapshot of a JFS2 file system as a directory tree. The snapshot on device is mounted read-only at directory.A snapshot can only be mounted once. When mounting a JFS2 file system with snapshots, the snapshots are activated. Disk images can also be unmounted, which may free up some RAM used by the system to mount the image. To unmount a disk image in Windows, open 'My Computer,' select the disk image, and click 'Eject this disk.' What does it mean to mount or unmount a disk image?
I need to unmount a VHD with a batch script in Windows 10. The only solution I found online was directed at Windows 7 and involved Diskpart. Are there any other native Windows command line tools available that can do the job?
Zerobinary99
Zerobinary99Zerobinary991,53611 gold badge1111 silver badges1616 bronze badges
3 Answers
Since I haven't found a way to solely rely on MS-installed command line tools, I'll list third party solutions.
WinApiExec
WinApiExec enables the user to call the Windows API from the command line. The 32bit executable is only 3.5KB in size (x64: 5.5KB) and therefore ridiculously small, introducing as little overhead as probably possible.
vMount
vMount supports quite a few VHD-related functions. Its size (x86: 432KB; x64: 2.53MB) is rather huge for merely calling WinApi, so it's not a solution for my scenario, but might be useful to other people.
DiskPart
For the sake of completeness DiskPart shall be mentioned, too. It supports a great deal of disk-related features, but has a rather sluggish way of going about it to automate the otherwise necessary user input for scripting purposes. It's also the only tool on the list that will be trapped in a loop if you accidentally run the script without elevated rights.
Save the following two lines into a text file:
Now, Dism can parse the text file as a form of unattended answer file:
Zerobinary99Zerobinary991,53611 gold badge1111 silver badges1616 bronze badges
You can mount and unmount vhd/vhdx using native Windows 10 Powershell:
From cmd/bat:
In either case you have to use elevated (Run as admin) prompt.
Another thing to note is that you need to enable Hyper-V feature first.
Anton KrouglovAnton Krouglov
This is an expanded answer: (You should be able to glean how to umount VHD)
HowTo Automatically mount and umount VHD files on boot/shutdown.
Things seem to have changed a little in Windows 10.
First, I should say that I am mounting a VHD stored on a Linux File Server, mounting in over SMB.
Second, very important, is that if you don't detach the disk upon reboot, then when you try to re-attach it, it says 'The file is in use and can't be accessed'..
So we need both automount and unmount. The unmount proved a bit tricker, since I cant just put it in startup folder. You have to use Group Policy. Also, when run as a 'shutdown/startup' script, it ran to early, you need to run it at 'Logon/Logoff'
I have 4 files in
C:mount
mount.cmd
umount.cmd
umount.txt
mount.txt
Now in start type/run
FreeSoftwareServersFreeSoftwareServersgpedit.msc
and add the scripts to logon/logoff54622 gold badges99 silver badges3232 bronze badges
Not the answer you're looking for? Browse other questions tagged command-linewindows-10vhdejectunmount or ask your own question.
Microsoft Windows XP mounts external USB drives automatically. When the drive is connected to a USB port and powered on, Windows detects the drive and assigns it the next available drive letter. It is possible to manually mount the drive to a folder on another drive, or assign a different drive letter. The contents of the drive appear when the folder or drive letter mount point is clicked. The contents of the drive can be accessed and modified in multiple locations. Use the Windows XP DISKPART command line utility to manually mount USB drives.
Step 1
Step 2
Click the 'Start' button, 'All Programs,' 'Accessories,' then 'Command Prompt.'
Step 3
Step 4
Type 'list volume' then press Enter. Note the volume number of the USB drive in the list. The entry in the 'LTR' column is the same as the letter assigned to the drive by Windows.
Step 5
Type 'select volume <#>,' where '<#>' is the volume number of the USB drive, then press Enter.
Step 6
Type 'assign letter=' and then press Enter to mount the drive to a different drive letter. Replace '' with an available drive letter.
Type 'assign mount=' and then press Enter to mount the drive to a folder. Replace '' with an existing path on another drive. For example, 'assign mount=c:usbdrive' mounts the drive to the c:usbdrive folder, so that the USB drive's contents appear when that folder is opened.
Tip
- Un-mount the drive using the 'remove mount=' or 'remove letter=' command, where or is the previously specified mount point. USB flash drives cannot be accessed or mounted using DISKPART. Enclose the folder path in quotation marks if it contains a space. The mount point folder must exist before the command is executed, or an error will appear.
Warning
- Exercise extreme caution with this procedure. Using DISKPART incorrectly can cause permanent data loss or make the system unbootable. Ensure that all important data is backed up before proceeding.
Video of the Day
Brought to you by Techwalla