Seemingly serious disk problem - help please!

[n3ks0s]

Hello everyone,

I have been struggling with problems with my hard disk for quite some time now. Enormous lags and freezes, i.e. when opening iTunes, long startup times (4min +) etc. Now I once again ran the disk utility manager and it came up with the following report:

Verifying volume “Mac HD”
Checking storage systemChecking volume.
disk0s2: Scan for Volume Headers
disk0s2: Scan for Disk Labels
Logical Volume Group BFB45EF4-7EE1-4B9C-8D07-7109BF07FE87 spans 1 device
Logical Volume Group has a 16 MB Metadata Volume with double redundancy
Start scanning metadata for a valid checkpoint
Load and verify Segment Headers
Load and verify Checkpoint Payload
Load and verify Transaction Segment
Load and verify Transaction Segment
Incorporate 1 newer non-checkpoint transactions
Load and verify Virtual Address Table
Load and verify Segment Usage Table
Load and verify Metadata Superblock
Load and verify Logical Volumes B-Trees
Logical Volume Group contains 1 Logical Volumes
Load and verify EEAEDB09-CA1F-48D9-AE6C-F9A78E2C5527
Load and verify 5A618245-5115-4632-9C13-12E2A2E6F064
Load and verify Freespace Summary
Load and verify Block Accounting
Load and verify Segment Cleaning
Newest transaction commit checkpoint is valid
The volume BFB45EF4-7EE1-4B9C-8D07-7109BF07FE87 appears to be OK.
Checking file systemPerforming live verification.
Checking Journaled HFS Plus volume.
Checking extents overflow file.
Checking catalog file.
Checking multi-linked files.
Incorrect number of file hard links
Checking catalog hierarchy.
Checking extended attributes file.
Overlapped extent allocation (id = 2240673, /private/var/db/crls/CE652920ADB6ADBBF0F615AE83CAA747F3D2F6AF.pem)
Overlapped extent allocation (id = 3030919, /private/var/root/.Trash/Recovered files #2/Word Work File D_1088749060.tmp)
Overlapped extent allocation (id = 3478976, /Users/m_behrens/Library/Calendars/051EAF16-E9E9-489A-ABFC-3A6A94CBAE12.caldav/3F79A3DA-C253-4802-9449-BDBE72BA2F9D.calendar/Events/5F8ACA82-8D52-4E66-ACC5-FA68BA84000A.ics)
Overlapped extent allocation (id = 3488495, /Users/m_behrens/Library/Mail/V2/AosIMAP-m_behrens/INBOX.mbox/15A239C4-49B4-442E-A4CC-A53378E8F75C/Data/0/2/Messages/20428.emlx)
Overlapped extent allocation (id = 3495754, /Users/m_behrens/Library/Application Support/Skype/ares_21/chatsync/a3/a3636745051e0424.dat)
Overlapped extent allocation (id = 3495812, /Users/m_behrens/Library/Application Support/Skype/ares_21/chatsync/1a/1a73e934dd3176cf.dat)
Overlapped extent allocation (id = 3507135, /Users/m_behrens/Library/Mail/V2/AosIMAP-m_behrens/INBOX.mbox/15A239C4-49B4-442E-A4CC-A53378E8F75C/Data/0/2/Attachments/20491/2/Conductorform2012.doc)
Overlapped extent allocation (id = 3512230, /Users/m_behrens/Library/Calendars/051EAF16-E9E9-489A-ABFC-3A6A94CBAE12.caldav/37543A62-41D7-4F97-BB9B-24161273A915.calendar/Events/4C0EAC2D-1889-4888-AEDB-1DB1EB270CBE.ics)
Overlapped extent allocation (id = 3513899, /Users/m_behrens/Library/Preferences/Macromedia/Flash Player/macromedia.com/support/flashplayer/sys/#widget.publisheradnetwork.com/settings.sol)
Overlapped extent allocation (id = 6109759, /Users/m_behrens/Library/Caches/com.apple.Safari/Cache.db)
Overlapped extent allocation (id = 6257554, /HFS+ Private Data/temp6257554)
Overlapped extent allocation (id = 6257751, /Users/m_behrens/Music/iTunes/iTunes Media/Podcasts/extra 3 HQ/Extra 3 4.mp4)
Overlapped extent allocation (id = 6260849, /Users/m_behrens/Library/Caches/Metadata/Safari/Bookmarks/433E8817-141E-4502-9F95-FD0F40C4FD56.webbookmark)
Overlapped extent allocation (id = 6260852, /.MobileBackups/Computer/2012-08-10-233719/Volume/private/var/db/crls/CE652920ADB6ADBBF0F615AE83CAA747F3D2F6AF.pem)
Overlapped extent allocation (id = 6260853, /private/var/db/crls/crlcache.db)
Overlapped extent allocation (id = 6260867, /Users/m_behrens/Library/Safari/ReadingListArchives/29CA0E66-8170-4C79-AD20-34117C5DC58B/Page.webarchive)
Overlapped extent allocation (id = 6260878, /Users/m_behrens/Library/Caches/Metadata/Safari/Bookmarks/29CA0E66-8170-4C79-AD20-34117C5DC58B.webbookmark)
Checking volume bitmap.
Volume bitmap needs minor repair for orphaned blocks
Volume bitmap needs minor repair for under-allocation
Checking volume information.
Invalid volume free block count
(It should be 75011358 instead of 74128529)
The volume Mac HD was found corrupt and needs to be repaired.
Error: This disk needs to be repaired using the Recovery HD. Restart your computer, holding down the Command key and the R key until you see the Apple logo. When the Mac OS X Utilities window appears, choose Disk Utility.


I am downloading Mountain Lion right now and would like to do a proper full clean install with it. When I simply back up on time machine, is it correct that all the problems will be imported once again after the update?

What would you recommend? I consider simply backing up just the folders/libraries, deleting everything and doing a complete clean install of mountain lion and just copying back just folders, no full time machine backup.
However, since that will probably take ages and I would have to reinstall a lot of things, I would rather try to avoid that. Also, which folders would i need?

Do you guys have a recommendation? I am slightly clueless and very worried since I def do not want to loose my data including 2 years worth of university work.

THank you so much in advance and best regards,

n3ks0s

 

[Fishrrman]

1. Backup entire drive to external drive using CarbonCopyCloner to create a bootable clone.
2. Boot from the cloned drive
3. Reinitialize the internal drive
4. Install new, "fresh" system
5. Create new account (use OLD username and password)
6a. Use Migration Assitant to move over old data, or...
6b. Manually move old data back to internal drive.

Easy.

 

[n3ks0s]

Thanks a lot! I will try that.

One question: what do you mean by "reinitialize"? sorry for being so unknowing.

Best
n3ks0s

 

[robgendreau]

Reintializing is erasing everything and reformatting.

Your drive is illing and needs to be repairing. You should check it even after reformatting; it might still have problems and if so, installing a new system on it won't make problems go away.

You do need a backup. It doesn't have to be a clone, but get something soon. I'd use TM; cloning might produce unpredictable results. Copying folders won't work except for your data, which is so important you should have it in two places. Once you verify the disk is working, and install ML on it, then you can use Migration Ass't to move stuff back. Migration Ass't moves applications, settings, etc etc. You can also copy DATA back, i.e. your documents. But just copying Applications and settings isn't very easy and often doesn't work.

 

[T5BRICK]

The volume Mac HD was found corrupt and needs to be repaired.
Error: This disk needs to be repaired using the Recovery HD. Restart your computer, holding down the Command key and the R key until you see the Apple logo. When the Mac OS X Utilities window appears, choose Disk Utility.

Right there in the long list of problems listed, the solution was provided. Have you tried that?