Booting From Unix Ext HD

I have installed Ubuntu on an ext HD, but the bootstrap failed. I am assuming the only way to boot into that HD is by open firmware.
(please share any other options)
I thought by typing (after the 0> prompt) dir I would get a list of devices. Clearly I have much to learn. On a Powerbook G4 1.5 GHz Boot Rom version 4.9.ofo Open Firmware 3. Can you point me to useful list of commands (URL) to help me get a list of available devices, read their directories and generally help me boot from disk1s11?
Also, is there a way to do this from terminal?
Thanks,
harmz

Here are some documents on Open Firmware.
[Fundamentals of Open Firmware, Part I: The User Interface|http://developer.apple.com/technotes/tn/tn1061.html]
[Technical Note TN1062 Fundamentals of Open Firmware, Part II: The Device Tree|http://developer.apple.com/technotes/tn/tn1062.html]
[Technical Note TN1044 of Open Firmware, Part III: Understanding PCI Expansion ROM Choices for Mac OS|http://developer.apple.com/technotes/tn/tn1044.html]

Similar Messages

Does SCCM 2012 R2 supports PXE boot from Unix servers.

Does SCCM 2012 R2 supports PXE boot from Unix DHCP servers.
The client has DHCP on Unix servers. There are no Windows DHCP servers in the environment. Do we need Windows DHCP server for PXE boot.

You can use any modern DHCP server in your environment. DHCP is just used to help point the BIOS/Network Card to the right server, which in this case is your ConfigMgr Distribution Point with PXE Enabled.
It is strongly recommended to use IP Helper Addresses instead of the DHCP options though.
I hope that helps,
Nash
Nash Pherson, Senior Systems Consultant
Now Micro -
My Blog Posts
If you found a bug or want the product to work differently,
share your feedback.
<-- If this post was helpful, please click the up arrow or propose as answer.

No internal HD showing in iBook. Only boots from Ext HD or CD.

I think my hard drive packed it in. When I boot up I get a folder icon with a flashing ? on the screen.
A number of months ago I made a duplicate of my internal drive on an external HD with carbon cloner. Fortunately it made a useable boot copy which I'm using to boot the computer. I could not previously boot from the external HD so I didn't know if this was going to boot. But it did!
I tried running Techtool Pro but it locks up so I can't check any hardware. Disk util used to allow me to click on verify permissions but would then give an error and refuse to do anything. Now it doesn't even list the internal hard drive. Computer seems to run normally from the ext. HD. Sometimes when booting the computer I will hear a faint moaning sound in the laptop until it starts booting from the Ext HD. So I'm pretty sure the drive is shot. There was no warning to indicate any hard drive problems.
Is there anyway to do any hardware testing to determine if its only the hard drive or something else that's shot? Why would techtool not complete the first step of hardware testing (memory) at the beginning of the test? Is there a way to make it run so I can check the hardware? I've tried deselecting all and trying to run tests other than the hard drive ones but nothing happens once it starts the test. Is it because it had to use the internal hard drive to start the tests?
The computer is still under extended warranty but I can't find the apple web page link to check when I bought the computer. Yesterday I could find the link for my remaining warranty info but today I can't find it. Where is this link hidden?
I have also tried and tried to find a link in support to request a hardware repair but such an options seems to be non-existent. Is this possible?

One thing you can do is to run the Apple Hardware Test, which is on one of the gray CD's that originally came with your computer. It may be a separate disc or on one of the install discs. You should get one or more error codes which will indicate where the problem lies. You can then call Apple Technical Support on the telephone and give them the error code, which they can interpret. If you are under warranty, they will probably want you to send it in for warranty repair. They can also tell you how much time is left on your warranty. If you are at all close to the end of the warranty period, be sure and ask for a case number, which will document that the problem first occurred under warranty. This is important to do, because they will honor the warranty until the problem is fixed as long as you can show that it first occurred under warranty.
Good luck!

Booting from Ext HDD / SSH / Codecs question

As I understand it, there are two things you can do to the apple TV.
1. Boot from a regular mac os x install on an external HDD from the USB port
2. Take the HDD out, enable SSH / install codecs, etcs
My question is quite simple then:
Is it possible to boot from the ext HDD and then install perian / flip4mac components and enable SSH without opening up the Apple TV?
From my understanding of the above, logic says, "yes"
Regards
Paul

As I understand it, there are two things you can do to the apple TV.
1. Boot from a regular mac os x install on an external HDD from the USB port
I doubt this is possible, besides a number of issues that you may or may not be able to resolve in instructing the tv to boot from another SUD, I doubt the tv has the ability to run a regular OS anyway (RAM limitations etc) but that is just my opinion, I have no specs to support this.

G4 PowerMac no longer boots from External FireWire Hard Drive

What would cause a G4 PM to no longer boot from an Ext. FW HD that was working fine yesterday and in fact still mounts fine on the desktop..... but when I go into system pref's and attempt to select the ext. HD (and it does show up as an option to boot from since it has an OS in Mac OS Extended Format, Journaled) but after selecting said drive the system simply defaults to the main HD instead and not the external HD I selected within system pref's.???
(I've run apple's disc utilities / First Aid ..... it simply says no repairs were necessary).
The HD in question is a Maxtor 120GB 7200 ATA133 in the following ADS enclosure:
Click Here
Same enclosure works fine with a pionner 110D S-Drive.
Any Suggestions (short of installing the Maxtor hard drive internally which I may have to try anyway)?

No shared network access when booted from Firewire

I can't seem to access any volumes on my network when my MacMini is booted from an ext. firewire drive. I've tried to do this from two seperate bootable FW drives and I can't access my NAS or any of the other Macs on my network. This is an issue that I just noticed. I have worked with Macs and PCs across networks for a while but I can't figure this one out for some reason.
I'm running MacMini 1.66 GHz Intel Core Duo and I'm on 10.5.8. Any insight is appreciated. Thanks!

UPDATED/SOLVED---I finally figured this problem out. **Note: This whole process began with the desire to expand my original MacMini's 75GB HD space and to avoid potential disaster. I have recently been going through a spate of HD failures and I really wanted to avoid such a calamity with my main system volume. So the goal was to, in effect, replace the MacMini's drive without having to open it up by simply buying a new 1TB drive and dropping it into a FW enclosure with a huge fan. I had hoped that a simple BounceBack recover would do the trick but I quickly found out that it was not to be.
The problem existed on backup copies that were created by my old version (5.1.4) of BounceBack (that I never updated). For whatever reason, that version excludes necessary components for networking when making bootable volumes. Therefore all my external FW drives that were bootable were not truly complete/useable volumes. Here's how I came to that conclusion and how I ultimately solved the problem.
1. I ended up having to do a reinstall of Leopard. I did this by cloning Leopard install disc to an image file and then restoring that image file to the FW drive. The real purpose of cloning the install disc was to immediately test the veracity of my theory that the problem lay within my BounceBack bootable volumes and not with the FW drives themselves. Sure enough, I found everything to be working perfectly from the newly minted, clean install Leopard FW volume. So then...
2. ...I cloned the MacMini's orginal internal HD. It was the only volume with my most recent system that did NOT have the aforementioned network access problems and it was the volume from which all of the other BounceBack volumes were created.
3. I restored this volume to the FW drive and was rewarded with a brand new, expanded and fully working system volume with all my applications and settings intact.
To be fair, I feel compelled to mention that this is not necessarily an indictment of BounceBack. Again, the copy I was using is several years old and I simply never paid for an update, thinking that the copy I was using was sufficient. I'm willing to bet that the makers of BounceBack solved this problem long ago with one of the many updates since that have been released I first purchased the software. That being said, I'm now using Time Machine for backups of my system volume while utilizing BounceBack for data on other volumes that don't need to be bootable.

Booting from a Leopard ext. HD

I am trying to get around the fact that Snow Leopard does not support version 4 icc profiles. (I have quite a few custom profiles that I built.)
The question: Could I boot my MBP from an ext. HD that had Leopard 10.5.8 installed? And if so, could I easily access image files for printing? I am thinking about installing Lightroom on the external to print from.
The other option is to buy a monitor for my old G-4 and print from it.
Thanks,

That's a definite "probably". Unlike Windows which drops bits and pieces of installed applications all over the place, OS X handles applications in a much cleaner way. Most applications do create preference files however which would likely be created on your local drive upon opening them on your external drive. It should be noted that if you are opening applications on a drive with an older version of OS X, there may be some applications which are not compatible with Snow Leopard... which I believe was your original problem.
I'm not exactly sure what your question is however:
+*Can I access applications that are on the MBP through the ext. drive, or must I have them installed on the external?*+
This doesn't quite make sense. If you are looking to open applications installed on your external drive which has 10.5.8 on it, there is not a problem so long as the application is compatible with Snow Leopard. If this isn't what you're asking, maybe you could clarify a bit.

Incomplete booting from ext FW HD on intel iMac.

I have recently upgraded from my G5 desktop to a new iMac 2.4 model. After transferring the data, etc across I wanted to create a clone by backing up onto an External Firewire Drive, just as I had been regularly doing with the G5. Initially I used the disc utility and later in the >partion> options switched from APM to GPT, proceeded to clone using SuperDuper! In both partion modes the startup disc looked happy to boot from the FW disc and indeed seemed to boot from it.
I thought task done when asked for the login name, HOWEVER, this was followed by the desktop screen and the "Blue Spotlight" in the corner. There it just froze! There is no other info on the menu bar and nothing loads on the desktop. There was also another 10 seconds or so of ext HD activity.
I use "Ice Cube" enclosures, gen 1 & 2, and neither FW800 or FW400 seems to make a difference. This PATA drive has never previously caused me any problems especially with SuperDuper! backup's.
What am I missing? Could somebody please help?

Not perhaps the best forum for your issue. You have posted this in the section specifically for dealing with iMac displays, which does not sound like it is your problem.
Perhaps posting in the 'Using you iMac' section might be better.
Ian

Incomplete booting from ext HD on Intel iMac

I have recently upgraded from my G5 desktop to a new iMac 2.4 model. After transferring the data, etc across I wanted to create a clone by backing up onto an External Firewire Drive, just as I had been regularly doing with the G5. Initially I used the disc utility and later in the >partion> options switched from APM to GPT, proceeded to clone using SuperDuper! In both partion modes the startup disc looked happy to boot from the FW disc and indeed seemed to boot from it.
I thought task done when asked for the login name, HOWEVER, this was followed by the desktop screen and the "Blue Spotlight" in the corner. There it just froze! There is no other info on the menu bar and nothing loads on the desktop. There was also another 10 seconds or so of ext HD activity.
I use "Ice Cube" enclosures, gen 1 & 2, and neither FW800 or FW400 seems to make a difference. This PATA drive has never previously caused me any problems especially with SuperDuper! backup's.
What am I missing? Could somebody please help?

Not perhaps the best forum for your issue. You have posted this in the section specifically for dealing with iMac displays, which does not sound like it is your problem.
Perhaps posting in the 'Using you iMac' section might be better.
Ian

I need to have both Snow leopard and Lion...Mountain lion running on my iMac. How do I install Lion or Mountain lion on an Ext H D and boot from it?

My software is obsolete (and now dead) in 10.7 so I need to keep Snow leopard alive to run that- but now things like TurboTax are dropping support for 10.6 or lower and I have to have lion or Mountain Lion available. I actually downloaded Lion onto a thumb drive but never installed it when I found out that it would immedaitely render all my FreeHand files inaccessible (years of work!), Now that I am forced to have an OS above 10.6 I was hoping I could install whichever--Lion or Mountain Lion onto an external hard drive and figure out how to boot from that (found something in archives I think, but I need words of one syllable or less). This way I could, ideally, boot from either the External hard drive in the higher OS when needed, or from the internal hard drive when I need to use Snow leopard. There is a long story here, but I think this is the gist. I wasn not sure if this should be asked here or in either Lion or Mountain Lion (both of which I have, essentially, ignored since I would not be moving up until I could figure out how to access those old files of forms and drawings00but now I have no choice. I am panicking now that I HAVE to make the move anbd cannot afford to buy another Mac just to keep two separately running. Any help would be greatly appreciated. i asked Apple when Lion came out and they said there was no way to partition (even if I KNEW how to do that) the haaard drive and install both on my iMac-- but I "think" this is a bit different and possible??? Thanks (once/if I figure this out, I need to figure out how to back-up but that is another matter)

You need to move to Windows 7, because Apple is now releasing a new OS X version annually and it's playing havoc with people's hardware and software.
Windows 7 will get support until 2020, that's 8 years of software stability, however you do need to make System Restore disks, boot disk and another on a hard drive to self restore (like TimeMachine is for OS X)
Apple has no plans to change their currrent behavior as all they care about is selling new hardware with a shiny new OS X verison on it.
If you wait to move, what will happen is you'll lose that full 8 years and will have to swtich to a newer Windows sooner
Windows 7 machines are still widely avaialble, despite Windows 8 (a failure) being pushed currently.
Running three OS X operating systems on one machine is quite a chore reserved for only seasoned computer geeks, then it's only going to last X months as the next OS X version will be released, then the next a year after that.
Another method would be to get a virtual machine software (virtualbox is free) and install Windows 7 into that to ease your transitition if you cant' spring for a Windows 7 machine, preferablly a tower that will last a long time.
Here is a method to run Snow Leopard in Parallels, however it's a unapproced hack and not for the comptuer newbie.
http://forums.macrumors.com/showthread.php?t=1365439
We have no control over Apple's OS X release cycle, nor the third party developers who make their own decisions what to support.
Our only choice as users to stop using both products and seek software/hardware stability.

Can you use a USB ext hard drive to boot from clone image?

I am not concerned about speed as much as having some kind of external drive to copy clone image to from my MacBook Pro. I know with older Macs you used to have to use Firewire connections for the Macs to boot from the external drives. I thought I saw something that said you now could also use USB. I'm pretty sure my MacBook Pro 17 (June 2009) has USB 2.0 version ports, so should I be able to do this? I know firewire would be faster but this is only for emergencies and until I could get my internal drive replaced. Also, any suggestions on brands (WD, Seagate, OWC) would be useful.

Yes, hold option booting from USB cloned boot drives work.
Although FireWire 800 is faster as you already know.
As always check to make sure you can.
Another secret, Mac's can be option/c booted off burned ISO of PartedMagic cd's too.
What's nice about this little gem, the whole Linux operating system loads into RAM and you can copy files from the non-boooting Mac's internal hard drive to a external drive, of nearly ANY format.
You can also burn disks, as the PartedMagic cd spits out after loading.
And you can get on the internet, and do malware scans and a lot of other niffty things.

Late 2012 Mini won't boot from ext HDD with 10.8

Having just replaced an early 2009 Mini with a later 2012 mini, I tried booting off an external HDD that is a backup with Mountain Lion 10.8 as the OS. I selected it to be the boot drive after holding down the option key, but the boot process never went beyond the white screen/Apple logo, even after waiting for minutes.
The external drive is in a Newer 3.5" enclosure with a FW800 port connected to the Mini via a FW800 cable. After booting from the internal drive I can view and change items in the 10.8 external drive. This drive previously booted fine from my old Mini.
[Note: This is not related to my earlier "Snow Leo won't boot" question.]
Thanks

The problem is the version on the external drive, if created
on the old Mini (infered from ""This drive previously booted
fine from my old Mini.") won't boot on the new Mini because
it lacks drivers that are not available on the general Mountain Lion
updates. Since the new Mini came out after 10.8.2, only the
version on it contains the proper drivers. Also, if the version
on the external drive is earlier than 10.8.2, it will never boot
as no Mac can boot to an OS older than it was shipped with.
Whenever 10.8.3 comes out, it will likely sync all current models again.

Thunderbold boot from ext vs internal 7200

Is if faster to boot from a Thunderbold drive than It would be to boot from a 7200 2.5 internal?
Would you notice a big difference in you performance in logic pro and in general ?

Well, I was able to get down to my vendor and spent the entire morning cloning the Mac mini to the Backup Drive... Phew they haven't start work on the Mac mini yet.
But here's the "mysterious thing":
I mounted the Backup Drive which is supposed to be corrupted or something, use Mac mini's Disk Utility to erase and reformat the backup disk, check again and everything is fine.
Use SuperDuper to clone the drive.
After that, I use Disk Utility to check the Clone Backup Drive and it return some sort of error in red, that the disk cannot be repaired, but this time it is mountable.
This lead me to conclude that either
-the Mac mini itself might have some OS system error corruption something that was cloned to the Backup, hence the error message in Disk Utility, because before the cloning the Backup Disk was perfectly OK, according to DU
and/or
-The Backup disk itself is faulty, easily done as I can just replace a new hard disk
What is your comment, opinion?
Anyway, I've reached my office and just in case, I am copying all the Users' data (not clone) to another disk, back up of a back up.
And when the Mac mini is back I will re-install/re-format etc a fresh new OS, and just copy over the data files; Then check the status of the Backup Drive.
Cheers

Startup Manager arrows but no drives (trying to boot from ext

Today my old eMac (ppc 10.4.11) that I will replace soon froze up and will boot only to a grey screen. I tried safe-boot and pram reset to no avail. I had earlier made a clone of the eMac drive* and would like to boot from that (via firewire). I option start up I'll get to the blue Startup Manager with the 2 arrows, a spinning wristwatch but no drive icon. Eventually the wristwatch stops spinning.
I also tried to hook up a stand-alone dvd drive** (tried the firewire 1st, then the USB port)port) with the original eMac install dvd but get the same result as the external boot clone. (arrows, a spinning wristwatch but no drive icon.)
Any ideas on what to do to revive this eMac before I toss it out?
Thanks in advance,
Paul
*This clone is old-ish, I think I'm pretty well backed up on recent files but would really like to do another review before I throw the eMac in the garbage.
**Don't know how to force open the dvd tray

Hold Mouse button down at boot to open the tray.
Seems the internal drive is bad & likely preventing recognizing the FW drive, but is the FW drive spinning up? try hitting the 3/4 circle arrow to have it look again for drives.

Cannot boot from ext drive after 10.5.2 update

I followed the procedure in tech article 306502 for creating and updating a bootable drive. I am in a PPC Mini environment. External drive is LaCie 160 GB rugged firewire portable with auxiliary power, I created the drive with 10.5.1 and it booted nicely to my two Minis (running 10.3.9 and 10.5.1). I then updated the external system with 10.5.2 from the Apple site and now it does not boot. Sits and spins with a white screen, grey apple, and whirligig. Whirled for 1/2 hour and tried deveral times.
I see this is not uncommon, but there have been no cures posted. One post suggested Disk Warrior. What would I do to with DW to move this problem forward. This is quite annoying, as I rely on being able to move around and boot from this drive when needed.
Thanks for any help.
Fred

after 10.5.2 two days ago, mine booted up regularly. however after the additional leopard graphics update last night, it no longer boots up at all. i have to usethis ****** vista to report the problem. my macbook is right beside me, with nothing but a plain blue screen. occasionaly the mouse cursor appears for about 30 seconds, then dissapears and the screen remains blue. what can i do? if i cant log in apple cant update my mac!!! help!!!

Booting From Unix Ext HD

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