The type of disk witsh suppose to be unaffected by the snapshot (Shareable/write-through) does not work

[mikefaille]

What I had before starting:

• Install Ubuntu 12.04 on disk A

Here are the steps I followed:

0 - Search for Hard drive information on my VM

sudo -H -u vbox VBoxManage showvminfo "0757e29d-1b85-46a3-887e-4233b2712af7

1 - Create a static disk B and put the status Shearable or write-through (same problem)

sudo -H -u vbox VBoxManage modifyhd --type shareable 0757e29d-1b85-46a3-887e-4233b2712af7

2 - Create a MSDOS partition and format it to EXT4 3 - Mount the partiton in the /mnt

 mount /dev/sdb1 /mnt

4 - Snapshot my VirtualMachine

5 -

touch /mnt/tokeep

6 -

sync

7 - restore snapshot 8 - My file /mnt/tokeep disapear!

[mikefaille]

Sorry, I forget to say that only the steps that the commands "VBoxManage" that have been done on the host machine.

[aeichner]

Please reopen if still relevant with a recent VirtualBox release.