8 Replies Latest reply: Sep 23, 2009 12:56 PM by FrustratedUserJam
aknelson Level 1 (0 points)
After installing Snow Leopard my boot time increased from 30-35 seconds to 45-50 seconds. I booted up in verbose mode and it hangs on "Waiting for DSMOS..." for about 10 seconds every boot.

I did a bit of research and here's what I've done so far to try and fix it:

1) Rebulid disk permissions

2) Send /Library/Caches to the trash, reboot, empty trash, reboot and reset PRAM (tried this by both methods: cmdalt+pr boot and removing the power and battery and holding down the power button for 5 seconds)

3) Flushed the kext cache via "sudo kextcache -v 1 -t -l -m /System/Library/Caches/com.apple.kext.caches/Startup/Extensions.mkext /System/Library/Extensions"

So what should I try next? There's got to be a way to fix this. I think number 3) is on the right track, but I'm not sure where to go with there. I'm a beginner with UNIX, but willing to learn.

Late-2008 MacBook, Mac OS X (10.6)
  • Carolyn Samit Level 10 (103,365 points)

    Check to see how much available space there is on the startup disk.

    Right or control click the MacintoshHD icon. Click Get Info. In the Get Info window you will see Capacity and Available. Make sure you always have a minimum of 10% to 15% free disk space at all times.

    Insufficient disk space can cause the problems you are experiencing.

  • aknelson Level 1 (0 points)
    I've got 65 gigs free out of 320, that should be plenty.
  • stevolution8 Level 1 (0 points)
    i have the exact same problem. since upgrading to SL startup takes around 1min 15 secs, shutdown around 35-45seconds. crazy speeds. i've tried the steps listed in the first post too, to no avail.
    I'm using a macbook, 2.1GHz, intel core 2 duo with 1.5 GB Ram.

    my girlfriends laptop runs tiger with 1GB Ram and starts up in like 10 seconds. super quick. i have no idea why mine is so slow!
  • G-RaZoR Level 1 (0 points)
    I am also having the same issue. I've done all three steps you listed, and I have 94 GB of free space on the hard drive.

    It's odd, it seems as if the SL boot up times are slower than Leopard. It's weird.
  • freefrank Level 1 (0 points)
    same problem here.
    May be I need to reinstall my system.
  • Bill Heyman Level 1 (25 points)
    i got over 1 minute grey screen on a 10.6 clean install only after the efi and blue tooth firmware updates.before those updates it was normal. i think there is a problem when they run concurrently. after ram upg to 4 GB i get 45 seconds grey screen before i see the apple logo.
    Apple says this is normal. i see about 30 of these machines a week at least. this is absolutely not normal.
  • Bill Heyman Level 1 (25 points)
    have you tried selecting the startup disk in the prefs. It helped on my macbook.
  • FrustratedUserJam Level 1 (0 points)
    Be grateful. My bootup time was fine in leopard and is now about 20 minutes. I have no idea what is wrong. Amy suggestions? Thinking about downgrading back to leopard using a superduper backup