On Wed, Jul 27, 2011 at 5:39 AM, kin loo <kinlo...@gmail.com> wrote: > On Jul 26, 3:55 pm, 0in...@gmail.com (David du Colombier) wrote: >> > fossil/flfmt -v da39a3ee5e6b4b0d3255bfef95601890afd80709 /dev/sdC0/fossil >> > fatal error: corrupted root: vtRootUnpack >> >> This Venti score is wrong. This is the Venti score returned by an empty >> Fossil file system. That's why it cannot be found in Venti. >> >> > /boot/fossil: cacheLocalData: addr=1 type got 0 exp 8: tag got 0 exp 1 >> > /boot/fossil: fsOpen error fsOpen: block label mismatch fsys main >> >> The type VtDataType was returned instead of VtDirType and the tag >> BadTag was returned instead of RootTag. Obviously, something got wrong. >> >> It looks like your virtual hard disk image was corrupted >> because of the the power outage. Especially since you used >> the dynamically-growing qcow2 image format. >> >> You should make another hard disk image and rebuild >> Fossil from your last Venti score. >> >> Since this score cannot be found in your Fossil super block, you >> should extract a list of your Vac scores from your Venti server >> with the script /sys/src/cmd/venti/words/dumpvacroots. >> >> -- >> David du Colombier > > Thank you David du Colombier, it works. I can now use the most recent > score produced by dumpvacroots to restore the active and archive data > in a new qemu image. But the original 9fat partition still keeps in > the old qcow2 image. >
If you want the old 9fat, you can try converting the qcow2 to raw format and mounting new image as fat in the host operating system.
