Vboxmanage/compact: Unterschied zwischen den Versionen

Version vom 6. Januar 2023, 12:03 Uhr

You have to do the following steps:

Run defrag in the guest (Windows only)
Nullify free space:

With a Linux Guest run this:

dd if=/dev/zero of=/var/tmp/bigemptyfile bs=4096k
rm /var/tmp/bigemptyfile

or

telinit 1 
mount -o remount,ro /dev/sda1 zerofree -v /dev/sda1

With a Windows Guest

download SDelete from Sysinternals
and run this:

sdelete.exe c: -z

replace C: with the drive letter of the VDI

Shutdown the guest VM

Now run VBoxManage's modifymedium command with the --compact option:

With a Linux Host run this:

vboxmanage modifymedium --compact /path/to/thedisk.vdi

With a Windows Host run this:

VBoxManage.exe modifymedium --compact c:\path\to\thedisk.vdi

With a Mac Host run this:

VBoxManage modifymedium --compact /path/to/thedisk.vdi

VBoxManage is located here: /Applications/VirtualBox.app/Contents/MacOS/VBoxManage

This reduces the vdi size.

# vboxmanage modifymedium --compact windows10.vdi
0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%

@@ Zeile 1: / Zeile 1: @@
+You have to do the following steps:
+# Run defrag in the guest (Windows only)
+# Nullify free space:
+With a '''Linux Guest''' run this:
+ dd if=/dev/zero of=/var/tmp/bigemptyfile bs=4096k
+ rm /var/tmp/bigemptyfile
+or
+ telinit 1
+ mount -o remount,ro /dev/sda1 zerofree -v /dev/sda1
-You have to do the following steps:
+With a '''Windows Guest'''
+# download [http://technet.microsoft.com/en-us/sysinternals/bb897443 SDelete] from Sysinternals
+# and run this:
+ sdelete.exe c: -z ''
+'''replace C: with the drive letter of the VDI'''
+Shutdown the guest VM
+# Now run VBoxManage's [https://www.virtualbox.org/manual/ch08.html#vboxmanage-modifyvdi modifymedium] command with the <code>--compact</code> option:
+With a '''Linux Host''' run this:
+ vboxmanage modifymedium --compact /path/to/thedisk.vdi
+With a '''Windows Host''' run this:
+ VBoxManage.exe modifymedium --compact c:\path\to\thedisk.vdi
-# Run defrag in the guest (Windows only)
+With a '''Mac Host''' run this:
-# Nullify free space: With a '''Linux Guest''' run this: dd if=/dev/zero of=/var/tmp/bigemptyfile bs=4096k ; rm /var/tmp/bigemptyfile Or: telinit 1 mount -o remount,ro /dev/sda1 zerofree -v /dev/sda1 With a '''Windows Guest''', download [http://technet.microsoft.com/en-us/sysinternals/bb897443 SDelete] from Sysinternals and run this: sdelete.exe c: -z ''(replace C: with the drive letter of the VDI)''# Shutdown the guest VM
+ VBoxManage modifymedium --compact /path/to/thedisk.vdi
+'''VBoxManage is located here: /Applications/VirtualBox.app/Contents/MacOS/VBoxManage'''
-#Now run VBoxManage's [https://www.virtualbox.org/manual/ch08.html#vboxmanage-modifyvdi modifymedium] command with the <code>--compact</code> option: With a '''Linux Host''' run this: vboxmanage modifymedium --compact /path/to/thedisk.vdi With a '''Windows Host''' run this: VBoxManage.exe modifymedium --compact c:\path\to\thedisk.vdi With a '''Mac Host''' run this: VBoxManage modifymedium --compact /path/to/thedisk.vdi ''VBoxManage is located here: /Applications/VirtualBox.app/Contents/MacOS/VBoxManage''
 This reduces the vdi size.
   # vboxmanage modifymedium --compact windows10.vdi
 %...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%
 [[Kategorie:VirtualBox]]
 [[Kategorie:Linux:Befehl]]