Install Beta7 failed and can not Boot

Hi,

Did you have FileVault switched on while running 10.10?

Also does your Mac have a firmware password?

Max.

I just check the password protection utility, it is off.

how can I check the FileVault, I can not remember if I have changed it

1. Once in Recovery Mode, go to the Utilities menu at the top of the screen and open Terminal and type:

   diskutil corestorage list

2. Select the output and copy with cmd+C
3. Select the Get Help Online link from the menubar to open the Safari web browser.
4. Navigate back to this thread.
5. Paste the output to your reply.

This process works the other way too of course - you may find it helpful when you need to copy a command.

the result is below

-bash-3.2# diskutil corestorage list

No CoreStorage logical volume groups found

Okay, good - that suggests that you don't have FileVault enabled either. Type the following into the Terminal Window and copy the output for your reply:

diskutil repairDisk disk0

Next go to "Reinstall OS X" from the central window - you're not going to go through with it - I just want to know which version it offers you.

Try booting normally or in Safe Mode if that doesn't work (hold Shift while booting). If it still doesn't work then repair your disk as follows:

• Boot the Mac into Single User Mode by holding down Command+S as soon as you switch on. You know you have successfully entered Single User Mode when you see a bunch of white text on a black background scroll by - you can let go of the keys then
• When the Single User boot sequence has finished, you’ll find a small command prompt at the bottom of the screen prefixed by a hash sign (#), when you see that type the following command to make any repairs necessary from the abortive update:

  fsck -fy

• Once fsck completes, if you see a “File system was modified” message, then you should run “fsck -fy” again until you see a message stating “The volume (name) appears to be OK” – this is standard procedure of using fsck.

Thanks for your reply. I followed your steps

diskutil repairDisk disk0

-bash-3.2# diskutil repairDisk disk0

Repairing the partition map might erase disk0s1, proceed? (y/N) y

Started partition map repair on disk0

Checking prerequisites

Checking the partition list

Adjusting partition map to fit whole disk as required

Checking for an EFI system partition

Checking the EFI system partition's size

Checking the EFI system partition's file system

Checking all HFS data partition loader spaces

Checking booter partitions

Checking booter partition disk0s3

Repairing file system

Checking Journaled HFS Plus volume

Checking extents overflow file

Checking catalog file

Checking multi-linked files

Checking catalog hierarchy

Checking extended attributes file

Checking volume bitmap

Checking volume information

The volume Recovery HD appears to be OK

File system check exit code is 0

Updating boot support partitions for the volume as required

Reviewing boot support loaders

Checking Core Storage Physical Volume partitions

Updating Windows boot.ini files as required

The partition map appears to be OK

Finished partition map repair on disk0

Next go to "Reinstall OS X" from the central window

It offers OS X Yosemite 10.10, but can not go through with it.

Then I try booting normally, still not work

Then I Boot the Mac into Single User Mode

fsck -fy

output

/dev/rdisk0s2

Root file system

Executing fsck-hfs(version hfs-285)

checking Journaled HFS Plus Volume

The Volume name is Macintosh HD

Checking extents overflow file

Checking catalog file

pci pause:SDXC

Missing thread record(id=142608777)

Incorrect number of thread records

(4,212637)

Checking multi-linked files

Checking catalog hierarchy

Invalid volume directory count

(It should be 478951 instead of 478952)

Invalid volume file count

(It should be 2184305 instead of 2684306)

Checking extended attributes file

Checking volume bitmap

Volume bitmap needs minor repair for orphaned blocks

Checking volume information

Invalid Volume free block count

(It should be 23236127 instead of 20584173)

Volume header needs minor repair

(2,0)

Repairing volume

Missing directory record(id=142608777)

The volume Macintosh HD could not be repaired

I have tried fsck -fy for five times, it always shows the same

I use "Disk Verify" and "Disk Repair" of the Disk Utility in the Recovery mode.

It shows

Verifying volume “Macintosh HD”Verifying file system.Checking Journaled HFS Plus volume.Checking extents overflow file.Checking catalog file.Missing thread record (id = 142608777)Incorrect number of thread recordsChecking multi-linked files.Checking catalog hierarchy.Invalid volume directory count(It should be 478951 instead of 478952)Invalid volume file count(It should be 2684305 instead of 2684306)Checking extended attributes file.Checking volume bitmap.Volume bitmap needs minor repair for orphaned blocksChecking volume information.Invalid volume free block count(It should be 23236127 instead of 20584173)Volume header needs minor repairThe volume Macintosh HD was found corrupt and needs to be repaired.File system check exit code is 8.Error: This disk needs to be repaired. Click Repair Disk.

Verify and Repair volume “Macintosh HD”Repairing file system.File system check exit code is 8.Updating boot support partitions for the volume as required.Error: Disk Utility can’t repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed-up files.

Verify and Repair volume “Macintosh HD”Repairing file system.File system check exit code is 8.Updating boot support partitions for the volume as required.Error: Disk Utility can’t repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed-up files.

And pop up a messagebox "Disk Utility can't repair the disk, Back up as many of your files as possible, reformat the disk, and restore your backed-up files"

At this point you've used all three methods that your Mac offers to repair your partition and, if you need to salvage anything, your best chance is to find another Mac and install some Disk Recovery software to it. You'll then need to connect your Mac to it with a FireWire or Thunderbolt cable and boot your Mac while holding the T key. This will allow the other Mac to deal with your internal drive as though it were an external drive attached to it. As I said, this is your best chance of retrieving data from the volume if you need to, but there is no guarantee that you will be able to.

The alternative is to attempt to completely reformat the partition. You should first try to do that with Disk Utility from Recovery Mode - choose "Mac OS Extended (Journaled)". If DU can't manage it, I'll provide the Terminal commands to override it.

Once reformatted, Recovery Mode should accept to re-install Yosemite to it. You may need to connect the Mac to your router with an Ethernet cable.

-Max.

hi I'm having an issue boot, however I can't access my keyboard in single user mode?