id,summary,reporter,owner,description,type,status,component,version,resolution,keywords,cc,guest,host
7294,compacting virtual disk corrupts disk => fixed in SVN,Quinn Stevenson,,"HOST:  Windows 7 64-bit
GUEST: CentOS 5.5 64-bit

Steps I used to reproduce:
- Install CentOS in VM
- Allow CentOS to download updates
- Install zerofree in VM
- reboot to runlevel 1
- ran the following commands
  mount -n -o remount,ro -t ext3 /dev/mapper/VolGroup00-LogVol00 /
  zerofree /dev/mapper/VolGroup00-LogVol00
  mount -n -o remount -t ext3 /dev/mapper/VolGroup00-LogVol00 /
  reboot
- After successful reboot, showdown the VM and run VBoxManage modifyhd --compact <virtualdisk.vdi>
- Now when I try and boot the VM the first time, the screen resizes for the X login, but it stays black and nothing is ever displayed.  After resetting the virtual machine, I get a ""Kernel panic - not syncing:  Attempted to kill init!""

One other note - this process works just fine with the IDE virtual controller/disks.  I've tested with IDE, SATA and SAS virtual disks, and the error occurs with both the SATA and SAS disk types.

I'll attach all the vbox.log files for the test run with a SAS virtual disk.",defect,closed,virtual disk,VirtualBox 3.2.8,fixed,,,other,other