Opened 12 years ago
Closed 8 years ago
#11142 closed defect (obsolete)
Reversion to online Snapshot destroys files on writethrough mode drive
| Reported by: | Phylon2012 | Owned by: | |
|---|---|---|---|
| Component: | other | Version: | VirtualBox 4.1.22 |
| Keywords: | writethrough mode drive | Cc: | |
| Guest type: | Linux | Host type: | Windows |
Description
System: Vbox 4.1.22 on Intel based W7-64 host with Kubuntu 12.04.1 guest
I have 2 virtual disks (VDI), one in normal mode (containing the OS) and one in writethrough mode. Both use dynamically allocated storage. When I create a small file on the wt-mode drive and then revert to a previous online snapshot, the file seems to be gone, that is, a "ls" command shows the directory state before the file was created. Unmounting and then mounting the drive again will bring back the file in general. However, if I create a new file before unmounting / mounting again, the "invisible" file is overwritten. To me it looks as if buffered filesystem metadata contained in the online snapshot is not updated after system start but eventually written to the wtm-drive.
Please reopen if still relevant with a recent VirtualBox release.