Error in the dump file

[Mark]

And odd thing happened. I copied the /var partion to a vmware shadow box;
then this occured:

% restore -rf /mymount/var.sunday_back
expected next file 1135924, got 1135923

That is weird. So, I ran a fsck:

% fsck -f /var
** /dev/ar0s1f (NO WRITE)
** Last Mounted on /var
** Phase 1 - Check Blocks and Sizes
** Phase 2 - Check Pathnames
** Phase 3 - Check Connectivity
** Phase 4 - Check Reference Counts
** Phase 5 - Check Cyl groups
5179 files, 357624 used, 1190607 free (1071 frags, 148692 blocks, 0.1%
fragmentation)

There seem no errors. So, why would there be an error in the dump file?

Thanks!

- Mark