No changes in the size of the vdi file since 06:44 (Europe, Berlin time). The only difference between the two guests is that in the first one the webmin service is stopped and in the second one running: Since yesterday evening I'm running 24 hours test with 2 identical VB Guests. Īs I had the suspicion that it might have to do with Webmin - what is not true as I know in the meantime - I did the following: And if it would exist it would have been impossible to compress the vdi file. var/log, /mail etc) several times and can't find a file being extremely big or growing by the size the vdi file is growing.

I found further that I can compress the vdi file again to nearly it's original value by the normal means (zerofree / VboxManage. It seems that every write action is done into a (or several) new 1 MB block(s). I did several tests within the last week - what I found is that the file is growing always by 1 Mi (mebi - 1.048.576 Bytes) or x times 1 Mi. It is growing by several 100 MB within 24 hours even if the virtual machine is only started in headless mode - no user logged in, no other action within the machine.

I currently have the effect that my VirtualBox vdi-file is growing much more than it should. Ubuntu server 14.04 - with Guestadditions - 512 MB RAM - VT-x/AMD-V, Nested Paging - SATA-Controller - AHCI - 1 Port - HDD: VDI - virtual size 8 GB - actual size 3,07 GB - dynamic

The effect I have on two different hosts:ġ) Ubuntu 12.04 server - VirtualBox 4.1.12_Ubuntu r77245 - no GuestadditionsĢ) Xubuntu 14.04 - VirtualBox 4.3.28 r100309 - with Guestadditions After struggling for days I can't find the solution and can't find a hint in the net.

Xubuntu webmin