David,
About the error when trying to remove the snapshot, this is most likely
caused because you increased the disk size of the base disk, instead of
the snapshot diff disk currently in use by the VM.
The fact that the VM does not see the increase space is most likely due
to that - the base disk is actually not being seen directly the VM, only
the diff disk.
Now, you modified the base disk upon which the diff disks are based to
provide a single view of the data to the VM. I'm surprised VirtualBox
does not complain earlier about it, and is the most probable cause of
the seg fault.
So: never change the disk size (any of the disks in the snapshot chain)
while snapshots are in use. Always do it on the base disk once you've
remove ALL the snapshots.
About the activation: cloning a VM resets some values that are typically
used to uniquely identify the hardware by Windows:
- Motherboard UUID, by default same UUID as the VM but can be changed
individually
- Disk UUID
- MAC addresses on network interfaces
This would be enough to trigger a new Windows activation since it would
typically mean you changed hardware.
Cloning is always an issue with Windows and you'll need to take that
with Microsoft directly.
Max
On 22/12/15 13:19, David White wrote:
Stephan,
Thanks for the response. Hope your experiment went well.
As an update for the group (hoping some devs see this), I have
successfully deleted one of the snapshots. The first error message,
"hard disk has more than 1 child disk", was due to me somehow having a
couple different copies of the actual Windows VDI disk file laying
around. I can't remember exactly what I did to fix it, but I recall
reviewing everything tied to the VM within Settings -> Storage, and
also browsing to the VM's path on the host machine and deleting all of
the files that weren't actually in use.
I continue to get a *segmentation fault* whenever I try to delete the
first snapshot.
I've upgraded to VirtualBox 5.0.12, and have also tried cloning the
machine again - but I quickly confirmed that Windows lost its
activation again on the clone.
I've backed up the entire dump / log / crash file that Ubuntu
automatically sends out whenever an application ends unexpectedly, so
if someone wants to see that, or if I should submit a bug report, I
can provide it.
By the way, here's my (now, 2) questions (1 of them resolved) on
SuperUser:
1.
http://superuser.com/questions/1011325/virtualbox-windows-10-guest-resizing-snapshots-and-losing-activation
2.
http://superuser.com/questions/1016721/virtualbox-segfault-when-deleting-snapshot
- David
On Tue, Dec 15, 2015 at 7:57 AM, Stephan Hockley
<stephan.hock...@yahoo.com <mailto:stephan.hock...@yahoo.com>> wrote:
David,
I can not answer your question, but on two unrelated issues: I
have never been able to get my Microsoft product keys to be
recognized in VBox nor VMware Fusion, and second, I did a Win 10
update last weekend and lost ethernet on the host machine. In
short, found a community post and restored it.
You have prompted my curiosity and I believe I will create a Win
10 VM this week.
Good luck with this issue, I've been busy as of late, and hoping
to become more responsive to the VBox user community.
Stephan
On Tuesday, December 15, 2015 6:03 AM, David White
<dmwhite...@gmail.com <mailto:dmwhite...@gmail.com>> wrote:
I asked the following question on Superuser about a week ago, but
my question hasn't gained any traction.
I have a Windows 10 VM in VirtualBox (Ubuntu 14 host, VirtualBox
5.0.10 platform). It was originally a Windows 7 virtual machine,
and Windows 7 was fully activated.
A few days ago, I wanted to run some Windows Updates on the
Windows 10 VM to install Threshold 2, but I was told that there
wasn't enough disk space.
No problem, I figured I would just resize the disk.... except,
that's a problem. I increased the disk size from 45GB up to 60GB
using vboxmanage, but neither Windows nor gparted running on a
Live CD will recognize the increased storage space.
I read some documentation that indicates there's a bug in
VirtualBox that prevents a guest VM from recognizing increased
storage space when snapshots are present.
I have 2 snapshots (that I don't really care about) of the Windows
10, so I figured that my snapshots are preventing the virtual
machine from seeing the increased disk size.
When I go to delete the snapshots, I get either of the following
results, depending on which snapshot it is that I'm trying to delete:
* *For the 2nd snapshot / child snapshot - *Error message - Hard
disk {path-to-disk file} has more than one child hard disk
(2). *or...*
* *For the "parent" snapshot*, VirtualBox takes a long time
acting like it is merging the differences, and then fails
(completely crashes). Ubuntu's message whenever an application
crashes appears with "The application Oracle VM VirtualBox has
closed unexpectedly"
o This is the only line I see in /var/log/syslog: Dec 15
05:52:20 Develop-CENTS kernel: [ 2082.315873]
DeleteSnap[6852]: segfault at 20 ip 00000000006e3eab sp
00007f8c97893888 error 4 in VBoxSVC[400000+45b000]
So then I read that if I clone the VM, that would essentially get
rid of the snapshots for me, and then I could increase the disk
size on the cloned VM.
That's what I did, and I then successfully installed Threshold 2.
About a week later, as I was doing some work, I noticed that
Windows was telling me that it wasn't activated. I went into the
Settings, and the message I read indicated was that "Windows 10
isn't activated because the previous version of Windows was never
activated."
Fortunately, I had a backed up copy of the old VM (pre-clone, and
pre-updating to Threshold 2). I turned that back on, and confirmed
that Windows was indeed activated.
So I'm up a creek.
1. Why the heck did Windows 10 lose its activation on the clone
that I created?
2. Can I create a clone without Windows losing its activation?
3. If not, how can I delete these snapshots, which are preventing
me from resizing the hard disk that Windows uses?
--
David
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