Thank you, Sam. Disk utility's verify/repair claims there is nothing wrong. I tried three experiments. Producing a disk image with disk utility gives me a locked disk I cannot open. Carbon Copy Cloner found errors and produced only a partial copy.
As I have a back-up copy I'll erase the disk and restart Time machine. Regards John On 1 Jun 2012, at 18:15, Sam - MacAmbulance wrote: > Hi John > > Usually when that happens it's because the system can't repair some > file-system damage on the hard drive and presents you the disk read-only so > you can make a copy of it then erase. What happens if you open Disk Utility > then select the disk and click on "Disk Repair"? > > Regards > > Sam > MacAmbulance > Providing affordable Apple & PC services > > Sam Mullen > 07747 778022 > http://www.macambulance.co.uk > [email protected] > > > > -- > You received this message because you are subscribed to the Google Groups > "Sussex Mac User Group" group. > To post to this group, send an email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/smug?hl=en-GB. -- You received this message because you are subscribed to the Google Groups "Sussex Mac User Group" group. To post to this group, send an email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/smug?hl=en-GB.
