Can I repair my startup disc without the OS X DVD? - ehMac.ca
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Old Dec 6th, 2007, 08:30 AM   #1
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Can I repair my startup disc without the OS X DVD?

I'm in a lot of trouble. I moved to China and I left my OS X DVD at home in America - now I'm stuck here and I've got a hard drive that needs to be repaired because my XP was completely nuked by a virus attack and I had to wipe it.

I got to the point where it asks me to partition my drive, it fails, and says it needs to be repaired. But the repair utility won't do it as it wants to do it with the startup disc in a pre-boot environment.

Mac stuff of any kind is virtually impossible to find in China(outside of Beijing and Shanghai, which is where I am) and I need Windows for my school work. Is there any other utility or program I can use to fix this without the CD?

This is the report from what disk utility would tell me based on running a 'verify disk', the only allowing option for my startup volume.

Code:
Verifying volume “MacOS”
Checking 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.
Volume Header needs minor repair
The volume MacOS needs to be repaired.

Error: The underlying task reported failure on exit


1 HFS volume checked
	Volume needs repair

So, can anything besides the on disc program fix a 'volume header'? I ran Google searches but all I came up with was instructions on how to repair the volume using the OS X disc.
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Old Dec 6th, 2007, 10:01 AM   #2
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I don't remember how much this command can repair but you can try the following:

Start your Mac and before the chime stops hold down the Command and S keys together. After about 10 seconds you should be presented with the command line.

Type "fsck -yf" (without the quotes) and press Enter (or Return; doesn't matter which). I think it stands for File System CHeck, but that's just some trivial info.

This is a disk repair program included with the underlying Unix part of the OS. It should be able to handle minor repairs such as the one you have mentioned.

Run the same command again until the message it provides at the end says that everything is fine and nothing needed repair. You may need to run it two or three times. It shouldn't take more than three to five minutes each time.

When everything is okay, type "reboot" (again, no quotes) and Enter. Your machine should restart and hopefully all will be well.
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Old Dec 6th, 2007, 10:28 AM   #3
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I think you are snookered without the (or copy of) the install disc. Can someone from home mail you a copy?

A copy of the current OS install disc, the original system discs that came with the machine, TechTool and mission critical app installers are always in my bag - this is frontline for troubleshooting.

It is all very cool to be able to run Whinedoze on a Mac but one has to remember that it can take down the whole system if you are not lucky. Sucks, but there it is.
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Old Dec 6th, 2007, 12:07 PM   #4
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Assuming your machine still boots, You can try getting an external hard drive, CarbonCopyClonering your internal to the external as a bootable clone, booting from the external, and proceeding with the repair.
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Old Dec 6th, 2007, 02:46 PM   #5
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The single user mode "command-S" command is fsck -fy
Not -yf

This is exactly the same as running the disk repair utility on the DVD. Faster in fact. Some people think that you need to run from an external disk in order to fully repair the drive, since if you are running from your hard disk, you can't possibly repair everything. Not true. That is why you are in single user mode. It runs the same checks and repairs that disk utility does. fsck means file system check.
Running fsck -fy several times can sometimes be helpful. It doesn't always work the first time. Volume headers are part of the directory on your disk. fsck should fix this. If not, you need Diskwarrior to build a new directory. Failing that, an archive and install will save you, but you need the OS disks for that.

Do not use any cloning tools on a disk with directory errors.
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Old Dec 11th, 2007, 06:27 AM   #6
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Thanks Orion and Carl, the command line operation fixed it on the first go through. I ran it again just to double check and it came out fine, now the system is running a lot faster in general and I was able to get my other partition set up.

Thanks again!
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Old Dec 11th, 2007, 03:13 PM   #7
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Great news. I remember under Tiger you had to run it twice to make sure, but it doesn't hurt. If that fixed it, then you should be good to go.
I run fsck every once in a while just to check for directory damage and fix it if needed. Usually after hard crashes, etc.
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Old Dec 12th, 2007, 09:03 AM   #8
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Command and S keys not working???

Quote:
Originally Posted by Orion View Post

Start your Mac and before the chime stops hold down the Command and S keys together. After about 10 seconds you should be presented with the command line.
I tried that as my Mini is having some problems, tried holding the Command and S keys together on startup, but nothing... it just goes through the boot up and that's it.. no command lines at all.

Any ideas why? Is it because I have the new aluminum keyboard or ???

I tried holding the Command and S keys because I thought it may help. Since last night, I can boot up, but can't get online at all. I have a wireless router and use Airport.The minute I do anything with any app for the internet, the entire system hangs forever... I can't even force quit. Have to manually shut the computer off.

If I use an app that has no need for the internet, no problem. There are only three things different on my Mini since last night before all this started:

1- did a shared desktop thing with my roommate's Mini (works great or so it seems)
2- paired up a new bluetooth headset and was going to remove or un-pair the old one,
3- installed Div-X app: managed to remove the Div-X a moment ago - nothing different happened to the system, still hangs the minute I launch any app that connects to internet - and with my airport not working they all hang.

I noticed also that on boot-up Airport is on, then it just shuts itself off, period and I can't get it back, can't even get the system to access the wireless network at all, keeps telling me there is no network, yet I conect4d my roommate's Mini to the wireless network without a glitch (he normally uses direct wired connection instead of Airport).

Even something as simple as doing nothing else than launching System Preferences will give me the eternal hang, you know.. that rainbow circle of death!

Other than that the system has not had any problems whatsoever since I did a clean full install of Leo.

Any insights are appreciated.

Cheers

Last edited by sergeg1; Dec 12th, 2007 at 09:17 AM.
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Old Dec 12th, 2007, 09:41 AM   #9
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On *some* machines you just have to hold 's' without command. Try that?
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Old Dec 12th, 2007, 03:40 PM   #10
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I just repaired permissions on the HD,there were tons of them... most to do wit Quicktime for some reason,and others with Mail app.

I had to manually shut it down then rebooted, but to no avail, so for instance the minute I launch Sys Pref, the entire computer hangs.... no idea why its doing this, and I so need the machine for my work.

Luckily I can use a laptop, but its a PC only, at least it gets me here on ehmac.

Hope fully someone may have an answer soon?

Cheers
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