<davmor2> date is thu sep 17 15:41:47 bst 2009 so that is wrong
When ubiquity resizes the partitions, it hasn't yet made any changes to the system clock to account for a hardware clock in local time, but it has set a timezone.
So basically the resize happens an hour in the future, that's written to the superblock, and then after partitioning the installer works out what the time really is and that's ok when you reboot - but now you hit the fsck
<davmor2> date is thu sep 17 15:41:47 bst 2009 so that is wrong
When ubiquity resizes the partitions, it hasn't yet made any changes to the system clock to account for a hardware clock in local time, but it has set a timezone.
So basically the resize happens an hour in the future, that's written to the superblock, and then after partitioning the installer works out what the time really is and that's ok when you reboot - but now you hit the fsck