Airport: Link Down on en1

Discussion in 'iMac' started by julianabr, Aug 10, 2012.

  1. julianabr macrumors newbie

    Aug 6, 2012
    My question is this: Is there a way to create a safe boot environment which DOES NOT include the network cards?

    I know you can set a bunch of boot instructions using the "nvram boot-args" but I have yet to come across anything that suppresses the net cards. Is there some option using that command, or something in the kernel file, the boot.efi, or kext loading that can do this?

    Here's my full situation:

    My imac (early 2008 24" 3+GHz) won't boot. I posted a more general "can't boot" topic HERE, but I've tried a lot of things and want to focus on this particular message.*

    Please don't reply with instructions on how to soft boot or save my hard drive. I've already gone through all the basics. *Please, read the original post*if you doubt me. But, really, I have.

    With that out of the way, here's whats going on:

    When booting, my imac gets to the apple and spinning gear screen, and after some period the gear just stops.* Booting in verbose (or single user), using all of the techniques below, boot always stops at this same line:

    This behavior occurs when booting in all of the following ways:

    -- all peripherals removed, except keyboard and pertinent boot hardware.

    -- booting from external HD (usb), external HD(firewire), usb key, system disks, and boot disks of a few testing programs (internal HD is blank because that's what i first thought the problem was. It's ALWAYS the hard drive, right?* Well not this time :(

    -- tried booting with all of the above in both snow leopard and lion, and tried both in safe mode and regular boot.* Oh, and yesterday I tried in Windows 7.

    -- Tried safe boot (both SnwLep and Lion)

    -- Ran hardware checking app applejack

    -- Tried all combinations for slot placement with my ram (tho these tested clean using applejack)

    -- Cleared PRAM, NVRAM, SMC

    The one thing I CAN do is boot into single user mode, and get to the console. I am able to run commands, but everything I've tried so far has failed.

    Back to the "Airport link down" message, I've been trying to find a way (maybe in SUM) to tell the boot process to ignore the network cards. If that's where it keeps freezing, let's remove it from the equation and see what happens.

    Any thoughts, people?

  2. Intell macrumors P6


    Jan 24, 2010
    That message is a standard message for all Mac OS X and iOS systems when starting. When starting up in Safe Boot, shift on startup, the system doesn't load the kexts for Airport. Thus, Airport isn't used. That line is not why your system isn't booting.

    May I suggest using a different more readable font when posting? Your current font is a bit difficult to read.
  3. julianabr thread starter macrumors newbie

    Aug 6, 2012
    Sorry about the font.

    Well, even in safe boot, OSX still makes net cards available, right? (Doesn't it have to with this new lion internet recovery process?)

    Back during my brief fling with windows, I learned you can do a safe boot either with or without network, and it's a really easy option to make. I can't for the life of me figure out how to do that in OSX. I'd just like to eliminate the net cards as a cause for this nonsense.

    You're the first posting I've read to suggest that this is a standard message in bootup. So, of course I thought, "this guy's crazy!" But, lo and behold, there it was on the healthy boot of my macbookpro. :)

    Anyway, if that message doesn't indicate the culprit, might it be the next step in the process is failing and it's preventing the log line that should come next? What's after the net cards?
  4. Intell macrumors P6


    Jan 24, 2010
    Safe Boot is not the same as Lion's recovery thing. Lion's is a mostly full blown OS while Safe Boot is only a core OS. Safe Boot loads only the Ethernet kexts. Not the Airport ones.

    What are the last ten lines that are printed in the verbose boot before it stops?

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