VirtualBox

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Ticket Resolution Summary Owner Reporter
#11172 obsolete 5.25 inch floppy image wont work/mount correctly in Virtual Box DrSvenne
Description

I discovered some old 5.25 inch (360 KB and 1.2 MB) Floppy Disks which I scanned with WinImage to generate *.IMA-files, they mounts correctly in Virtual Box and I can run DOS 5.0 and 6.22 as VMs. However when trying to format the floppy images from within the VMs, VirtualBox seems to assume that all floppy images is of 1.44 MB size and thereby crashes and corrupts the *.IMA files.

Also the same problem seems to occur when using 720 KB floppy images.

I know that this might be an obsolete feature, but the fact was that I had very old backups on these floppys, which I thought I had lost, and it was fun to rediscover them. However I needed to creat a DOS 5.0 and 6.22 VM in order to unpack and use the backups.

(With todays PC hardware its not possible to install an old DOS 5.x or 6.x system, therefore using VMs instead)

Besides that VirtualBox seems not to be able to mount *.IMZ files created by WinImage (= compressed IMA-files)

There is another strange behaviour of VirtualBox when running DOS 5.x and 6.x as VMs and its that the VMs tends to almost lock the CPU at 50-100 % load all the time.

Also character mode DOS apps, like Borland TurboPascal and EDIT.EXE cannot be correctly resized when run in DOS as VM, the window remains small.

#6448 fixed 512MB guest use 1.5g memory Raveman
Description

All guests are started with 512Mb 2-3weeks later 2-3 guests use more memory (not the same 2-3 randomly changing which is).

14145 x1 20   0  945m 755m  56m S    3  6.3   1875:37 VBoxHeadless
 4799 x2 20   0  896m 618m  50m S    3  5.1   1847:28 VBoxHeadless
 5047 x3 20   0  900m 627m  53m S    2  5.2   2543:18 VBoxHeadless
 8440 x4 20   0  885m 632m  56m S    2  5.2 205:35.68 VBoxHeadless
 9780 x5 20   0  890m 642m  56m S    2  5.3 186:16.06 VBoxHeadless
14496 x6 20   0 1268m 1.0g  56m S    2  8.6   2131:06 VBoxHeadless
 7980 x7 20   0  892m 671m  56m S    2  5.6 197:35.76 VBoxHeadless
 2193 x8 20   0  973m 727m  53m S    1  6.0 866:16.88 VBoxHeadless
14557 x9 20   0 1460m 1.2g  56m S    1 10.1 808:48.26 VBoxHeadless
27842 x10 20   0  893m 622m  56m S    1  5.2 402:09.96 VBoxHeadless
 9533 x11 20   0  986m 734m  56m S    1  6.1 160:08.03 VBoxHeadless

1 week later this numbers are going higher... this very nice when the host need to use swap then host have minutes to crash because swap not fast as mem. This is an old bug, but still live on 3.1.6 and latest GA installed on XP.

#18298 duplicate 6.0 GUI create shortcut does not use VirtualBoxVM.exe dales773
Description

Windows host... Not sure if this applies to other hosts Shortcuts created using the Virtual Box Manager GUI do not use the correct VirtualBoxVM.exe Reproduce by

  • starting Virtual Box Manager
  • right click guest machine
  • create shortcut on desktop

New shortcut uses VirtualBox.exe instead of VirtualBoxVM.exe

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