This was a big problem, but now all solved except one.
I use a Seagate Flex 3TB drive as my Time Machine, which was fine until the update.
Now It will not verify/repair says something about slices.
Then I finally got it saying all was OK, so did a Backup Now.
It seemed to be doing OK and I left it overnight. It had 1.7TB on data on it at that time.
Came back today, and it is back to where it was - saying it can't be repaired, and I need to reformat....which is not a problem, but I don't have another spare drive with that much space on it.....
Why should it be a problem..... even Seagate App doesn't recognise it now....
I have switched off, unplugged, and rebooted, still no good.
I have an iMac 27 Mid 2010 i5 with 12GB Ram and the rest as was purchased, with a 1TB drive internal.
Advice appreciated, if needs be I shall have to buy a new drive and just keep the other or just do a reformat and backup.
Fortunately most of my work is backed up elsewhere on other drives and I am now retired, but I am not happy that an update from Apple has caused me these problems.
carol
I use a Seagate Flex 3TB drive as my Time Machine, which was fine until the update.
Now It will not verify/repair says something about slices.
Then I finally got it saying all was OK, so did a Backup Now.
It seemed to be doing OK and I left it overnight. It had 1.7TB on data on it at that time.
Came back today, and it is back to where it was - saying it can't be repaired, and I need to reformat....which is not a problem, but I don't have another spare drive with that much space on it.....
Why should it be a problem..... even Seagate App doesn't recognise it now....
I have switched off, unplugged, and rebooted, still no good.
I have an iMac 27 Mid 2010 i5 with 12GB Ram and the rest as was purchased, with a 1TB drive internal.
Advice appreciated, if needs be I shall have to buy a new drive and just keep the other or just do a reformat and backup.
Fortunately most of my work is backed up elsewhere on other drives and I am now retired, but I am not happy that an update from Apple has caused me these problems.
carol