fsck problem on updating to F10

[Patrick O'Callaghan]

I updated my F9 to F10 from the Preview DVD, but on rebooting after
updatig I get a complaint about an fsck error and am then offered a
shell to fix it. Trouble is, I can' t figure out what the error is.
fsck from the shell shows no errors. Ditto fsck from the DVD in rescue
mode. /var/log/* has no lines containing 'fsck' .

I'm doing a yum update right now to see if it goes away, but any hints
would be welcome.

poc