VirtualBox

Opened 14 years ago

Closed 14 years ago

#6982 closed defect (fixed)

Ubuntu 10.04 Guest in Windows XP Cannot be Installed

Reported by: Jake Colman Owned by:
Component: other Version: VirtualBox 3.2.4
Keywords: Cc:
Guest type: Linux Host type: Windows

Description

I am trying to install Ubuntu Lucid Lynx 10.04 as a guest under a Windows XP Host. The VM crashes with an unrecoverable error shortly after the installation begins. I have tried booting the VM from an official Live Install CD and from a downloaded ISO. I have also tried various VM settings but all to no avail.

Attachments (2)

VBox.log (266.9 KB ) - added by Jake Colman 14 years ago.
VBox.2.log (254.5 KB ) - added by Jake Colman 14 years ago.

Download all attachments as: .zip

Change History (15)

by Jake Colman, 14 years ago

Attachment: VBox.log added

comment:1 by Jake Colman, 14 years ago

While reviewing similar tickets, I came across Ticket #6926 which referenced an ext4 bug in the 10.04 kernel. I retried the installation using ext3 and now the VirtualBix is able to install the Ubuntu guest.

comment:2 by Sander van Leeuwen, 14 years ago

Resolution: duplicate
Status: newclosed

comment:3 by Jake Colman, 14 years ago

Resolution: duplicate
Status: closedreopened

I take that back. I ran a second test and the second test crashed exactly as originally reported. So I do not think it is the ext3/ext4 bug that was earlier reported.

comment:4 by Sander van Leeuwen, 14 years ago

priority: blockermajor

Try reducing the amount of RAM you assign to the VM.

by Jake Colman, 14 years ago

Attachment: VBox.2.log added

comment:5 by Jake Colman, 14 years ago

I created a new VDI file and partitioned it as ext3. The installation succeeded but the VM crashed while running Update Manager. I have attached the latest log.

This test was done prior to the suggestion of reducing the amount of RAM assigned to the VM.

comment:6 by Jake Colman, 14 years ago

Reducing the RAM from 1.5gb to 1gb seems to have worked. I am using an ext4 partition as is the default for the live cd installation.

Why is this required? How much RAM can I safely assign to the VM? Is this something that will be addressed in a future release of VirtualBox?

comment:7 by Jake Colman, 14 years ago

Can anyone explain why I have to reduce the amount of RAM assigned to my Ubuntu guest in order to avoid crashing my vbox? Is this an ancknowledged bug in vbox that will be addressed in a future release? Or is it a Ubuntu problem?

comment:8 by Frank Mehnert, 14 years ago

Yes. The VMM process maps the whole guest memory into its address space. So if you assign 1.5GB memory to your guest then these 1.5GB have to be mapped. Unfortunately the address space on 32-bit Windows hosts is 2GB for userland and 2GB for the kernel. Considering that there is more memory necessary to maintain the VM (you assigned 64MB video RAM, there is the executable code of the VMM itself and so on) you can imagine that it is sometimes not possible to fulfil these requirements. The suggested solution is to switch to a 64-bit host OS. There is an item on our TODO list to prevent mapping of the whole guest memory but this requires a lot of changes in the VMM code.

comment:9 by Jake Colman, 14 years ago

Thank you for that explanation. I have 128mb allocated for video memory and 1000MB of base memory. How muchg base memory can I safely give to the VM and not have this problem?

comment:10 by Frank Mehnert, 14 years ago

I cannot answer that question as I don't know the source code of Windows. Just try it out. And I wouldn't assign that many Video RAM to the VM, you normally don't need that.

comment:11 by Jake Colman, 14 years ago

Does the amount of video ram determine the effectiveness/speed of the video display? In other words, I want my VM to be able to have a high-speed graphics card. Does the amount of RAM influence that or strictly the hardware of my host?

comment:12 by Frank Mehnert, 14 years ago

The amount of video RAM is less important for the speed of your virtual graphics card. It does not make sense to assign much more than the recommended value to the guest (the GUI will tell you).

comment:13 by Sander van Leeuwen, 14 years ago

Resolution: fixed
Status: reopenedclosed

As this is a known limitation I'll close this defect. 3.2.6 supports a larger address space, but requires a host config change. See http://msdn.microsoft.com/en-us/library/bb613473%28v=VS.85%29.aspx

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