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Ticket Resolution Summary Owner Reporter
#15983 fixed VDI image resize yields unbootable VDI markusvm
Description

Using

VBoxManage modifymedium disk <file> --resize <size>

in VirtualBox 5.1.6 r110634 turns the VDI image (no snapshots used) into an unbootable medium, i.e., the MBR is garbage.

In my specific case, the capacity of the image before resize is 64000 MBytes (61599 MBytes size on disk). I tried 68000 MBytes and 72000 MBytes as resize goal. Both operations complete almost instantly without error and

VBoxManage showhdinfo <file>

outputs the correct capacity and unchanged size of disk.

I used resize before with other VirtualBox versions on this image and it was never a problem.

#15982 fixed guest additions fails to start with special usernames saber002
Description

Host System: Windows 10 64bit Guest System: Windows 7 64bit Virtual Box Version: 5.1.6 Guest additions: installed

When I log into the guest system with a username "test", guest additions are working. When I log into the guest system with a username "test ö", guest additions are not working.

The problem is not the space character, it works with "test a". It is the german umlaut. If this character is part of the username (not the full name), then the additions won't start and furthermore all the functions like seamless integration and so on are not working.

This can be redproduced by others: https://forums.virtualbox.org/viewtopic.php?f=2&t=79886

Regards

#15978 obsolete Floppy Controller adds 10-15 seconds of boot (POST) time for EFI VMs mihi42
Description

To reproduce:

  1. Create a new VM (I usually use Linux x64 as template) with some (empty) hard disk
  2. On the System tab, enable EFI
  3. Boot it. It should boot to EFI shell rather quickly.
  4. Add a Floppy Controller (does not matter if you also attach drives to it)
  5. Boot it again. Notice that it now takes 10-15 seconds more before EFI shell starts.

This is also reproducible when booting from a medium, not only for the EFI shell. Also, the Boot Menu (opened with F12) feels more sluggish (~5 seconds delay) when a floppy controller is attached.

I know, floppies are outdated, but for EFI development they are one of the fastest way to deploy freshly (on the host) built EFI binaries into the VM.

[thanks to klaus-vb in IRC for the tip to try a fixed-size VMDK instead.]

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