[Tyler McAdams]

Is there a way to make your computer do a fsck everytime you reboot?

[AKcrab]

I think it does.

[Tyler McAdams]

Originally posted by AKcrab:
I think it does.

It does it already? I had heard that... did not know if it was true or not though... can anybody confirm this?

[sbjordal]

Originally posted by Tyler McAdams:
It does it already? I had heard that... did not know if it was true or not though... can anybody confirm this?

It does. Hold down <apple> V at startup to boot into Verbose mode, and you'll notice that it stops on 'checking disk.' This is fsck running to make sure everything is a-ok.

[CharlesS]

Mac OS X only runs fsck automatically after an improper shutdown. If you shut the Mac down normally, it will run fsck, but with the -p option, so it will skip your hard drive and not scan it.

Therefore, this means you can make it fsck at every startup by always just turning the Mac off with the power switch instead of shutting it down right. As an added bonus, this method would even generate some disk damage, so that fsck would actually have something to do instead of just scanning the hard drive and saying everything was OK. What a deal!

Seriously, if you want to do this, the easiest way would probably be just to edit the /etc/rc.boot file. Find the line that says "fsck -p" and change that just to "fsck -y" and you should be all set. Obviously, you should make a backup of /etc/rc.boot before making any changes to it.

[Tyler McAdams]

Originally posted by CharlesS:
Mac OS X only runs fsck automatically after an improper shutdown. If you shut the Mac down normally, it will run fsck, but with the -p option, so it will skip your hard drive and not scan it.

Therefore, this means you can make it fsck at every startup by always just turning the Mac off with the power switch instead of shutting it down right. As an added bonus, this method would even generate some disk damage, so that fsck would actually have something to do instead of just scanning the hard drive and saying everything was OK. What a deal!

Seriously, if you want to do this, the easiest way would probably be just to edit the /etc/rc.boot file. Find the line that says "fsck -p" and change that just to "fsck -y" and you should be all set. Obviously, you should make a backup of /etc/rc.boot before making any changes to it.

That's what I was looking for! cool... Does this do a complete file system check even if journaling is enabled?

[CharlesS]

Originally posted by Tyler McAdams:
That's what I was looking for! cool... Does this do a complete file system check even if journaling is enabled?

Unknown - the man page for fsck does not mention journaling. I would guess that this probably would do it, because I'm surmising that the -p option also skips journaled disks. I can't guarantee that it will, though.

[Tyler McAdams]

Originally posted by CharlesS:
Unknown - the man page for fsck does not mention journaling. I would guess that this probably would do it, because I'm surmising that the -p option also skips journaled disks. I can't guarantee that it will, though.

Cool... I'll dig around an post back if I can find anything myself...

That BootCD tip for booting with a DVD works like a charm btw...

Thanks again!

[m.brown]

Originally posted by Tyler McAdams:
That's what I was looking for! cool... Does this do a complete file system check even if journaling is enabled?

I beleive you should also look at this.

I can't access it because I don't subscribe however it goes something like...

" Using the -n option to prevent disk corruption in Mac OS X

After using the "fsck" Terminal command in single-user mode to repair system damage, restarting the computer causes Mac OS X's memory buffers to refresh by default, modifying the changes made by "fsck" and potentially causing disk corruption. Alt ?"