Single User Mode: Still waiting for root device

iMac G4.
I reset the NVRAM, PRAM. It won't attempt to boot from anything but a OS 10.4 cd; booting from OS 9 cd just leaves me at the flashing question mark icon.
If I try to boot from OS X cd, it comes back with the prohibitory sign.
If I try to boot into single user mode, it gives me a bunch of "...."has no kernal dependency lines, then a 'still waiting for root device' line, and repeats that.
Something to the effect before the 'still waiting for root device' is "Waiting on <dict ID="0"><key>IOProvider-Class</key><string ID="1">IOResouces</string><key>IOResouceMatch></key><string ID="2">boot-uuid-media</string></dict>"
Any help please?

Nevermind...I found out that the hard drive was bad...still puzzles me why it wouldn't boot from CD though, as I thought they all should even if no drive is present.

Similar Messages

  • IBook is not starting up - "still waiting for root device"

    The 600 MHz / 640 MB / 20 GB iBook did not want to wake up and after forced shutdown would not start up. grey screen. With MacOS X CD - "prohibition sign", MacOs 9 - no start at all
    I had 2 partitions on the HD one with Tiger and other with 9.2.2 - none of them appear in the list of startUp folders. would not go into the Target mode.
    I know there are few threads here with similar problem - I went through them but nothing of the suggestions would help.
    Did reset the PRAM (only once though) - when I still heard the startUp chime
    Did reset PMU
    Left the machine unplugged for about 12 hours
    Now I managed to get into single user mode while attempting to start up from a Tiger DVD. Here is what I see on the screen:
    "using 1638 buffer headers and 1638 cluster IO headers
    Extension "" has no kernel dependency.
    (then there are 14 extensions listed that has no kernel dependency)
    Firewire (OHCI) Apple ID 30 built-in now active, GUID 000393ff fe6ce976; max speed s400.
    ADB present: 8c
    Security auditing service present
    BSM auditing present
    rooting via boot-uuid from / chosen: 7FF85 (a lot of symbols)
    Waiting on <dict ID="0"><key>IOProviderClass</key><string ID="1"><IOResources</string><key>IOResourceMatch</key><string ID="2">boot-uuid-media</string></dict>
    Still waiting for root device
    still waiting for root device
    and so on with "still waiting..." again and again
    also I did not hear start up sound anymore. Yesterday it was still audible.... can someone please help?!
    iBook dual USB   Mac OS X (10.4.5)  

    thanx for replying. Last night I finally managed to start up the machine using a FireWire ext HD as a StartUp Disk. Disk Utility and TechTool Pro and Disk Warrior are not showing the internal HD at all.
    Since I was not able to use any start CDs including original MacOs X and 9 Cds maybe it is a problem with Data Cable that connects both HD and optical drive with logic board? It is hard to imagine why it would come to something like that. Overheat? I did not have enough free space on Tiger partition - 1GB. Maybe that. I am starting to look for a replacement HD....
    iBook dual USB   Mac OS X (10.4.5)  

  • Forbidden Screen - Error: "Still waiting for root device"

    Greetings to all! I come to you with my boot troubles as a supplicant, in the hope that someone can help.
    I have a PowerBook G4 15-inch, pre-Intel from late 2005. Until today it always worked and rarely hanged. All I've ever needed to do when in trouble was reboot. I've updated the Apple OSX software regularly and have never touched the hardware, except once 18 months ago to add memory. All I do with this machine is use it. It's been weeks since I installed any new software.
    There were no warning signs before the problem started today.
    FIRST SIGN OF TROUBLE: The machine was unusually slow, showing beach balls on every minor move. I powered down conventionally and later turned it on again. After a minute I got the "Forbidden Sign" grey screen, which I had never seen before. So I rebooted, and got that again.
    +I turned to the only other available machine (very old PC, unfortunately) to browse for solutions, and have so far tried the following:+
    1) BOOT FROM INSTALLATION DISK: Forbidden Screen. After a couple of attempts I removed the disk (by clicking trackpad on power up). At some point, in desperation, I even tried Disc 2.
    2) RESET PRAM (Command-Option-P-R on power up) : I got three chimes, then the grey screen. It stayed on the apple and gear for many minutes. At least it never went to the Forbidden Screen.
    3) FILE SYSTEM CHECK (Option-S on power up) : After a few steps it shows error messages (see below) and starts repeating, "Still waiting for root device," over and over.
    4) RESET NVRAM (Command-Option-O-F on power up) : I got a blue screen with text and was able to input "reset-nvram" (response: OK) and then "boot." Result: Forbidden Screen.
    5) SAFE START (Option on power up) : Forget it. Forbidden Screen. Same when I try it with "C" as some sites recommend. Same with or without the Install Disk in the DVD driver.
    6) POWER MANAGEMENT UNIT RESET (Shift-Control-Option-Power): Subsequent boot still produces Forbidden Screen.
    Here are some of the messages when I start up with Option-S:
    CSRHIDTransitionDriver::probe booting in single user .. do not match
    Extension "" has no kernel dependency.
    Extension "" has no kernel dependency.
    Apple PMU::CLOCK RESET! PMU WAS PROBABLY RESET SOMEHOW!! +(Yes, I did that, but it wasn't showing this before I did, and it WAS showing all of the following.)+
    Security auditing service present
    BSM auditing present
    rooting via boot-uuid from /chosen: +(I think the long code that follows is the serial number?)+
    Waiting on <dict ID="o"><key>IOProviderClass</key><string ID="1">IOResources</string><key>IOResourceMatch</key><string ID="2">boot-uuid-media</string></dict>
    PMUMS::start ERROR: failed to find IOATABlockStorageDriver
    Still waiting for root device
    Still waiting for root device
    Still waiting for root device
    +(etc. ad infinitum)+
    *So now I'm begging anyone for answers to these questions:*
    Am I doomed?
    Does anyone know what the problem is?
    This seems to be happening prior to disk access, as it happens with or without the Install Disk. So do I still have the hard drive working? Is my data on it?!
    Was resetting the Power Management Unit a bad idea?
    What can I do next?
    Nicholas from NYC

    Thanks for your reply, Louie!
    In the meantime I have succeeded in booting via the Install Disc using Option on power up. The Hardware test shows nada wrong. Disk Util repair goes up to "Rebuilding Category B-Tree" and then fails. Frustratingly, the HD is somehow visible, because the diagnostics correctly identify it and give correct values for empty space. Right now I'm running the Erase Free Space option and it's working - how is that possible? I've gotten into Single User mode and tried various FSCK commands. Sometimes it comes back with the superblock error and "Bad Magic Number" which I believe indicates a corrupted block within the boot sector. I can't figure out how to reassign without reformatting and losing the data. This will cost me a few weeks of data, but really not that much work - still set me back by days.
    Next step will be to start taking it apart, as you suggest, starting with the easy matter of trying with just one DIMM or switching the DIMMs.
    Thanks again, and if anyone knows how to help - how does one reassign a superblock from the Single User mode?

  • Still waiting for root device

    I had an XServ serve that we could not get Profile Manager running after the 2.2 update in Dec 2012. Re tried rolling back various folder  since we have time machine running and backing up to an external Apple RAID.  Eventually I gave up anddecided it was time to restore the whole server from Time Machine.  I booted the XServ up with a 10.8 DVD and Chose "Restore Server from Backup". I then chose one of the full backups it listed. It restored the Time Machine backup.  However, when it boots. I get the Apple logo and then a circle with a slash and a pinwheel. Booting in Single User mode I find it is constantly waiting at " Still waiting for root device" and goes no further.
    The internal hard drives in the XServe are a RAID as well as having the external Apple rack mounted RAID connected via a card in the XServe.

    See if you can start up in Safe Mode. This will take awhile longer than a normal startup because it does a file check and repair of the hard disk.
    If this works you will see your normal desktop. Once completely started up in Safe Mode, try to restart normally, and go to Applications/Utilities/Disk Utility. Click on the top hard drive icon in the left sidebar and note the S.M.A.R.T. status at the bottom right of the pane. What does it say?
    Select the named boot volume in the left sidebar, and repair permissions on it.
    If you can't start up in Safe Mode, maybe something in this Apple Knowledge Base article will help:
    Or it may be time to invest in a disk utility such as DiskWarrior.

  • 10.6.8 Netboot - "Still waiting for root device"

    Hi all,
    I am having trouble with one particular 10.6.8 Netboot image that is hosted on a Mac Pro running 10.5.8 Server.  (The main 10.5.8 Server is currently hosting about 15 other Netboot and Netrestore images that work with no problem.)  I built the image on a 10.6.8 Server using System Image Utility from a fully updated 10.6.8 restore image on an external hard drive.  The external drive was started up on MacBook, MacBook Pro, and iMac systems ranging from Late '06 to Early '11 revisions.  Software update was run on every startup, but came back fully up-to-date every time and never encountered problems starting up each from the external drive.
    I then ran Disk Utility permissions repair on the external drive from the 10.6.8 Server Mac Pro and built the Netboot image in System Image Utility.  Although I am fairly new to this process, I have already successfully built several 10.6.8, 10.7.5, 10.8.5, and 10.9 Netrestore images as well as one 10.9 diagnostic Netboot that all work perfectly.  I followed the same process when creating the 10.6.8 Netboot image.
    The image I created, called 10.6.8 Diags 3.0, shows up in the Netboot list, but when I attempt to boot it shows the Apple logo for a bit before showing the "circle slash" symbol.  Verbose mode shows that it hangs when starting and repeats "Still waiting for root device" over and over again and never does anything.
    I have rebuilt the 10.6.8 Diags 3.0 Netboot image several times to rule out the possibility of corruption durring image creation.  I have also tried to create the image from a Firewire attached external drive as well as building the data on the external drive into a .dmg on the 10.6.8 Server and then creating the image from that.  All methods of creating the image yeild the same "Still waiting for root device" error when attempting to start up on any system supporting the 10.6.8 kernel.
    Netboot settings in Server Admin are the same as other Netboot images that are functioning: enabled, diskless, Intel (grayed out), and NFS.  I have verified that all enabled image index numbers are unique and even tried several different index numbers on the problem Neboot image.
    Again, all other Netrestore images I created on the same 10.6.8 Server work just fine when added to the Netboot directory on the 10.5.8 Main Server, but the Netboot image of 10.6.8 Diags 3.0 does not.  I'm not sure what else to try at this point, any ideas?

    Ooooh. I've been reading similar pages on and just assumed it was one of those. Remarkable how my google searches didn't find that one. Thanks for the pointer, and I'll go try it.
    Thanks again, Dan.

  • PANTHER on Wallstreet: "Still waiting for Root device"

    I have problems installing panther on my wallstreet with Xpostfacto.
    I could install CD1 but it didn't accept CD2 (installer was waiting for the CD2, inserted it, nothing happened)
    Then I did a clean install (format disks in OS9, etc), only to find out that now it will not even load the first OSX install CD, "Still waiting for Root device" in verbose mode.
    I try to load the CD again, it starts spinning for a second and then seems to stall.
    Everything works fine however in OS9: the CD drive and the OSX install CD's
    This is my config:
    Wallstreet G3 233 mhz (M4753) 14,1 inch no USB
    Powerlogix G4/500 upgrade card
    OS 9.1 (I can install 9.2.2 if necessary)
    Xpostfacto (only option: "PatchedRagePro" to avoid purple video)
    Panther install CD's
    If someone could help me out, I'd be very thankfull!!

    Not much to offer but a few suggestions.
    With all peripherals removed including PC cards and mouse, I would shut down, then reset the PRAM and startup into 9.x and try XPostFacto again to boot the Panther CD.
    If unsuccessful, you might try trashing XPostFacto and reinstalling it; be sure to trash the XPostFacto log in the Preferences folder.
    How much installed RAM is present? If you have more than 256MB, consider removing one of the modules, then try your install. For whatever reason, the OSX installer can't deal with more than 256MB of RAM on some Wallstreets although I do believe the use of XPostFacto mitigates this.
    The PowerLogix upgrade card may also play a role.
    I would head over to the XPostFacto Forums and read about the install issues on the Wallstreet in the Powerbook Forums.

  • Mac won't boot installer (still waiting for root device)

    I've recently tried to install serveral linux distro's on my MacBook.
    Somewhere down the road something screwed up booting OSX.
    Now i can't boot a OSX install usb stick, because after some time i see a prohibited sign.
    If i boot into verbose or singleuser mode my Mac gets stuck at "still waiting for root device".
    I first thought the HDD was responsible for the error but i've taken it out and replaced it with a new HDD.
    The same error persists, even when i completely remove the HDD (boot from USB without a HDD attached).
    I also tried removing the original HDD and connecting it to my iMac via a USB dock, from there I repartitioned the HDD with a GUID partition scheme.
    I don't care about losing data on the HDD, I would like to be able to boot the USB installer and reinstall OSX.
    Oddly I can still install ubuntu or other OS's on the MacBook, but OSX get's stuck every time i try to boot.
    It's MacBook 4,1 early 2008.

    I'm assuming there's a backup of all partitions around somewhere, because this situation is deep into the likelihood of data loss already.  
    Per the Mavericks specs, MacBook4,1 Early 2008 isn't supported for 10.9 Mavericks, so whatever you're booting will need to be an earlier version of OS X. 
    Have you tried that bootable USB disk on another Mac, just to see if that's working correctly on another system? 
    Back in that vintage, DVD distros would have been more typical, and I think Snow Leopard 10.6 DVD will boot there (most of those seemed to first ship with 10.5.2, per some specs), if you don't have your original DVD disks. 
    Failing that, you could try erasing the disk using Linux or (if you can get at it) booting the installation disk and using Disk Utility, and see if that'll let you have access.

  • PowerBook G4 Install Issue - Still waiting for root device

    Hello Everyone and thank you for reading this post.
    I have a last generation PowerBook G4 which I wanted to give to a family member since I've upgraded to a newer MacBook Pro.
    I started by wiping the hard drive on the PB (in Target Disk Mode) using the Disk Utility application on the MBP using a FireWire 400 <-> FireWire 800 cable.
    I verified and repaired the PB HD, no issues found... but that's when things started going bad.  I'm unable to boot from the Tiger Install DVD when I restart the PB (holding down C).  I get as far as selecting the language, at which point the mouse/trackpad work for a second before freezing up.  I'm not able to select a language and that's as far as it goes.
    I've also reset the ram and pram (ald+cmd+r+p) with no luck
    My latest attempt has been to use the MBP's Disk Utility to partition the HD on the PB (over FireWire) and I also created a Image of the Tiger Install DVD on my MBP. I used the Disk Utility option "scan image for restore" and it checked out ok.
    After successfully creating 2 partitions on the PB HD and using Disk Utility to Restore the Tiger Install DVD image to the smaller partition (10GB), I booted the PB holding the Alt key.  As expected it found the Tiger Install DVD image on the HD, I clicked the arrow to continue.
    At that point the grey screen with the apple logo appears and after a while it changes to a "forbidden" sign.  Not getting much information from that I rebooted in Verbose mode (Cmd+V) to see what was going on. The attached image is what I see, unfortunately I don't know much about what it is telling me.
    Lastly, I thought the RAM might have gone bad and so I removed one of the 2 ram sticks with no luck.  I haven't tried the other RAM stick on it's own yet.
    I know this community is full of smart people that might have some suggestion as to what is going on.  Here is hoping someone has an idea to help me along.

    Hello Dalstott;
    Thanks for your suggestion and apologies for my late reply.  You're right, I hadn't been paying attention to the partition scheme.
    I repartitoned the hard drive (this time watching out for the partition scheme) and tried again, however I'm not out of the woods yet.
    With both partitions properly formatted, I restored to the Tiger install DVD image on the smaller one and booted from it.
    I booted in Cmd+V mode to see what was going on and it seemed to be doing ok, then the screen switched from the verbose output over to the language selection (beginning of the operating system install).  However it will get stuck there within a few seconds.  The mouse is initially responsive, but after 3-5 seconds the cursor (and keyboard inputs) freeze. 
    I've tried now a couple of times to click through as many menus as possible before the keyboard/mouse inputs freeze. Sometimes, I get as far as selecting the hardrive to install the operating system on before the clock runs out.
    Any idea whould could be going on?  Could this be a RAM issue?
    Thanks for your advice.

  • Mac Pro + 10.6.8 - gray screen with a forbidden sign & "still waiting for root device"

    Hi everyone,
    I've a Mac Pro Early 2008 Dual Xeon which runs 10.6.8  version of OS X (Snow Leopard)
    After a recent reboot the system won't come up, it just hangs displaying a gray screen with a forbidden sign instead and the gray spinner spinning forever...
    I have tried:
    1) Disconnect, test peripheral devices and network cables ---> nothing
    2) Perform a Safe Boot ---> I got this screen
    3) Reset the NVRAM / PRAM ---> Nothing
    4) Start from your Mac OS X Install disc; use Disk Utility
    I have tried to boot from both installed SuperDrive holding the C key, but nothing! The Mac doesn't start from CD (very strange!!!) 
    5) Check your cables and power source
    They are OK, but nothing!
    6) Remove third-party RAM and internal hardware
    No third-party RAM is installed...
    7) Perform an Archive and Install installation of Mac OS X or
    Perform an Erase and Install installation of Mac OS X as a last resort
    I can't boot from installation disc....
    Any other idea?

    Guessing that your hard drive has left the building or your OS X system has. I would start by replacing OS X, if you can:
    Clean Install of Snow Leopard
         1. Boot the computer using the Snow Leopard Installer Disc.  Insert the disc into the
             optical drive and restart the computer.  After the chime press and hold down the
             "C" key.  Release the key when you see a small spinning gear appear below the
             dark gray Apple logo.
         2. After the installer loads select your language and click on the Continue
             button. When the menu bar appears select Disk Utility from the Utilities menu.
             After DU loads select the hard drive entry from the left side list (mfgr.'s ID and drive
             size.)  Click on the Partition tab in the DU main window.  Set the number of
             partitions to one (1) from the Partitions drop down menu, set the format type to Mac
             OS Extended (Journaled, if supported), then click on the Partition button.
         3. When the formatting has completed quit DU and return to the installer.  Proceed
             with the OS X installation and follow the directions included with the installer.
         4. When the installation has completed your computer will Restart into the Setup
             Assistant. Be sure you configure your initial admin account with the exact same
             username and password that you used on your old drive. After you finish Setup
             Assistant will complete the installation after which you will be running a fresh
             install of OS X.  You can now begin the update process by opening Software
             Update and installing all recommended updates to bring your installation current.
    Download and install Mac OS X 10.6.8 Update Combo v1.1.

  • Stuck 'still waiting for root device' (with picture )

    my macbook pro is 2011 late one ... and recently i found out some program is keeping use my ram, so i decided to reinstall and erase all thing .
    so i can boot into chosing preference language, press reinstall OS  X then i stuck in loading information ... it is kept running but .... no luck until a 24 hrs on ....
    then i tried NVRAM reset... same result .... and press sth wron (CMD + S ) to start ... then sth like dos running as follow ...hope anyone can help

    Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.
    Back up all data on the internal drive(s) before you hand over your computer to anyone. There are ways to back up a computer that isn't fully functional—ask if you need guidance.
    If privacy is a concern, erase the data partition(s) with the option to write zeros* (do this only if you have at least two complete, independent backups, and you know how to restore to an empty drive from any of them.) Don’t erase the recovery partition, if present.
    Keeping your confidential data secure during hardware repair
    Apple also recommends that you deauthorize a device in the iTunes Store before having it serviced.
    *An SSD doesn't need to be zeroed.

  • I have a computer Mac, and I enter in the module, so that it can unlock, but I cant not write does not accept letters, numbers or symbols, and asks me is waiting for root device, what can I do....

    I have a computer Mac, and I enter in the module, so that it can unlock, but I cant not write does not accept letters, numbers or symbols, and asks me is waiting for root device, What can I do?....

    Some more details will probably be required.  The OS X version will help, as a start.
    If you have the diagnostics DVD disk, boot that and see if there are any errors logged.
    If this is OS X that's installed on a MacBook Air that you're using, then some of the usual triggers and approaches for resolving the still waiting for root device errors are discussed here.  Have a look at that, and see if something in that sequence looks familiar, whether the PRAM reset or the safe boot helps or works here.
    If there's any anti-malware, I/O accellerator, antivirus tools or similar installed, get rid of it.  At least for testing.
    There's a mention of "other OS" in your footer.  If not OS X, what is the operating system in use here?  If this is some other hardware or software involved, then the triggers for this error can vary.  Widely.

  • Stuck keys in single user mode

    I am running Solaris 2.6. on an Ultra10. When in single user mode, I am getting "stuck keys". If I type a y to answer a question, I get yyyyyyyyyyyyyyyyyyyyyy. If I try to delete some of the repeated letters, the delete key removes them all.
    What's up with that? I am trying to perform a restore, and need to be in single user mode.
    Thanks for any help,

    Welcome to  discussions, shaolson.
    Have you done anything recently that could have caused this?
    What Operating system do you have 10.2, 10.3, 10.4 ??
    1. Try starting up in safe mode, by holding down the Shift Key.
    2. else, if you can get the Install DVD in, startup using the 'C' key to boot into the Install DVD and run repair Disk from Disk utility. I know you have already tried fsck in single usermode, but the benefit of using Disk Utility is you can get useful feedback about what it has done.
    The procedure, in case you are unfamiliar with it is;
    To do this: Insert the Install Disk 1 into the drive and then select Restart; when you hear the chime hold down C key until the apple logo appears.
    This will take you to the installation software, but you do not want to install.
    Select your language, then go up to the top menu bar to Utilities in 10.4 (or Installer in 10.3) and navigate to the Disk Utility application.
    Select the start up drive, then go to the First Aid pane where you can click on Repair Disk.
    If it finds errors, repeat the process until it reports no errors.
    After these repairs, quit the application, and restart normally.
    3. If it still will not start up normally, restart with the Install DVD and do an *Archive and Install* to preserve your existing files. If successful, these will be located in a folder called Previous System on your hard drive.
    4. If Archive and Install is not possible, because you have insufficient Disk space to complete that operation, then you will need to connect your eMac to another Mac and and retrieve the important files via that means.
    regards roam

  • Can't exit single user mode

    I frequently start in single user mode to run fsck -fy on my startup disk
    and after running fsck -fy, I exit single user mode typing exit or logout.
    Now after running fsck -fy, typing exit or logout the single user mode remains
    and returns a line: -sh-2.05b#. I’m not adept enough to use single user mode
    other than for running fsck -fy so I am stuck on how to end the single user mode. TIA

    Some stories have happy endings and this is one of them.
    After a little head scratching I dig out the Tiger install DVD
    and repaired the permissions on the problem HD partition.
    Reboot to the problem disk, enter correct network settings, and
    now we even have a web to surf. Also we can exit single user mode OK.

  • Boot in Single User Mode gives no keyboard control (wireless (ALU keyboard)

    Power up Mac Pro
    when startup sound comes I enter cmd+s
    System boots into Single User Mode
    until it displays: root#_
    Now I am not able to type anything on the keyboard to display on the screen
    What could be the cause of this strange behavior?
    I am using the wireless apple alu keyboard with the magic mouse
    Oh, I also tried this with an USB attached keyboard and I had the same result. Booting into Single User Mode went fine but then the keyboard did not do anything after once we were in Single User Mode.
    Other than on this occasion the keyboard (and mouse) works fine. I've also done the latest firmware upgrades to the keyboard as well. All system software is at the latest revisions.
    Message was edited by: audip

    20" G5 Imac 1.8Ghz Mac OS X (10.4.8)
    You may want to find *Using Tiger* forum or PPC G5 iMac; or, go back to earlier versions of Applejack (which always from my experience worked 100% on Power Macs and pre-Leopard).
    AJ and SU just use Apple's diskutil and you are always better off with something like Disk Warrior, AJ/SU is handy when you don't have another drive handy to boot from or just wanted to clean up caches or something.

  • Single User Mode: Searching for root...

    My 2 year old unplugged my PowerMac iMac G5 (single) and now it won't start up.
    I was finally able to boot up off of Disk Warrior and replace the directory, but it won't start up past the gray Apple screen. The fan comes on after about 45 seconds and blows hard. Then, I get the circle with a line through it, in gray. I've never seen that on a mac.. the international "no" sign.
    When trying to start up in Single User Mode, I get a long list of stuff either disabled, not found, missing etc and then it starts writing to the screen every 30 seconds a line like:
    Still searching for root.
    I've tried pulling the back off, resetting the SMU, starting up in Safe Mode, etc.
    This has happened with storms before and I can usually get it back.
    I don't have original install discs.

    When you say you have "OSX" but not the "original install disks" do you mean the mac originally came with an earlier version and you don't have those disks, but you have a retail copy of Tiger?
    The circle with the slash means that Open Firmware cannot find BootX. Basically, I think this means that Open Firmware recognises the startup volume as such but cannot hand control to the operating system at all. BootX is what it uses to get the operating system going. Without this, as you've seen, you cannot make even single-user mode.
    What is SMU?
    *Is your data backed up? If not, prioritise that unless you can afford to loose it.*
    Does DiskWarrior repair permissions? If not and you have the Tiger retail version, try running Disk Utility to do that. I don't think this will help, but it won't hurt.
    Do you have another Mac? If so and you have the retail Tiger, you might be able to use Pacifist to replace BootX (in /System/Library/CoreServices). Alternatively, if the other Mac is running the same version of the OS and is also a PPC Mac, you could try copying the file from that machine.
    Before you do any of this (with the exception of the permissions repair), try to backup any data you need if that's at all possible.
    - cfr

Maybe you are looking for