Help reverting to Tiger from Leopard - No boot from CD

Hi there,
I am trying to revert to Tiger from Leopard on an Intel iMac that used to run Tiger. My plan is to wipe the drive and start fresh. Unfortunately, the computer will no longer start up from the Tiger installer DVD or an extrenal drive running Tiger. I am running 10.5.2. Has there been a ROM upgrade or something that prevents now Tiger from running? Any ideas?

Can I please ask a question.
I have leopard (10.5.2) installed on an intel Imac. I have just bought a Formac mini disk (160G USB) because I would like to install Tiger on it. When I bought the Imac it originally came with Tiger (Version 10.4.2) and the disk from what I am reading on these forums would indicate that it is a install disk rather than a retail version. The disk is grey and again I am assuming it is an intel install disk (don't know how to check).
Anyhow, in order to install Tiger onto the USB mini disk, I believe I need to boot up the from Tiger install disk and after the start chime begins hold down the 'C' button from some time until the Tiger install menu appears. My problem is that the Tiger install menu does not appear (tried this on several occasions) and it continues to boot up to Leopard.
Can someone please tell me if I am doing something wrong, or even what I am trying to do is able to be done. I think I have covered and put down all of the problems here ?
Appreciate any advice

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Need help reverting to Tiger from Leopard

Last last year I purchased a new iMac that came with Tiger (version 10.4.10) installed. I set it up and everything worked great, including the wireless. Unfortunately, it also came with a Leopard install disk in the box, and, not realizing that Leopard is Apple's equivalent of Vista, I "upgraded" the machine to Leopard. My wireless has not worked well since, and, after waiting for several Leopard updates to "solve" the problem without apparent success, I think I just want to revert back to Tiger.
I was thinking the best thing to do is an Erase and Install using the 10.4.10 install disks that came with the computer. However, I believe that when I "upgraded" to Leopard, Mail 3 modified the mail format used by Mail 2, and similarly with Address Book. So my primary question is how to get my mail and address information back to Tiger. Does anyone know if I archive off my mailboxes from Leopard's Mail 3 in mbox format, will I then be able to successfully import them back into Tiger's Mail 2? Similarly, can I export Leopard Address Book information into vcards and then read them back into Tiger's Address Book? Or are there better ways of doing this?
Thanks in advance!

I have looked through and posted to the Leopard "Getting Online and Networking" forum for months now looking for a solution. I really don't want to go through the "it's the router's fault" discussion anymore with the posters who want to blame everybody but Apple for something that obviously showed up in Leopard. This includes those who somehow believe that only Apple implements the standards correctly and the rest of the world doesn't, so the rest of the world is at fault.
I am just hoping someone who has some knowledge about reverting can answer my original questions in this post about getting e-mail and address book information back into Tiger from Leopard.

Will OSX Tiger on a Quicksilver boot from a 300 g HD

I have a few issues going and for background you can go to this post
http://discussions.apple.com/thread.jspa?threadID=278373&tstart=0
But I have 4 internal HDs. And my Powermac Dual 800 will only boot from either the CD or the Tiger OS on my 80 gig installed directly to the Motherboard. I have three drives installed on a Sonnet Trio. The sizes are 300/300/160. None of them are partitioned into smaller volumes.All are recognized as correct size but whenever I install Tiger onto them the Machine will not restart to them. They will sometimes (after a PMU or PRAM reset) power up them but will not restart to them. UGH This has been a 4 day investigation. Any help in either this thread or the linked one above would be great. Man if Steve wasnt speaking on January 9th I would have already just ordered a new mac...But I have learned to wait till after these announcements.
PMac Dual 800, 1 gig RAM,80/60gig HD, SDrive Mac OS X (10.4.3)

So why not just put the 300 on the main IDE bus attached to the logic board, and move the 80GB to the card???

"Moving" Tiger and Leopard OS's from G4 (32b) to G5 (64b)

I plan to image Tiger (10.4) and Leopard (10.5) from my Power Mac G4 (Quicksilver 2002) to a recently acquired a Power Mac G5 (Early 2005). My questions are:
1. Tiger and Leopard were installed on a G4, a 32 bit processor, but the G5 is a 64 bit processor. Do I need to do anything after I’ve “installed” the G4 Tiger and Leopard on the G5 to have them function as 64 bit Operating Systems (a.they can detect which processor they are installed on automagically and don’t need my intervention OR b.I have to toggle something OR c.I have to reinstall one/both of the Operating Systems on the G5 for them to function as 64 bit Operating Systems)?
2. How can I tell if the OS is running as a 32 bit or 64 bit process?
TIA.

Hi Barubin,
I'm no expert on OS X's internals, but I believe Tiger and Leopard's kernel still is 32-Bit, but allows 32-64-bit bridging. In Leopard's Activity Monitor I can only find two apps running in 64-Bit mode:
usbmuxd
IIDCAssistant
The best way of getting 64-Bit is to upgrade to Snow Leopard on Intel, I'm afraid.
Your target-disk method or BDAqua's suggestions should work just fine, but I usually find hdiutil to be generally more reliable, plus I can keep around a system image for safety's sake. When I say reliable, I mean that you can always interrupt the image creation by using CTRL-C or check whether it is actually throwing any errors. The GUI has hung on me on occasions. I also love UNIX, which helps!
I've never done a speed comparison between Disk Utility and its CLI counterparts, but I like the verbosity/flexibility provided by the CLI. It's a matter of taste, really. If you're not comfortable using the CLI, stick to the other options.
The purpose of asr -imagescan (asr stands for Apple Software Restore), is to rebuild the target image and replace it with a checksummed and reordered (optimised) version, so it can then be verified against the contents of your target volume after you're restored the data. Also, scanning the image allows you to do a block restore, which is effectively a blazingly fast blind copy. In a matter of minutes you can easily restore 15 GB of data into your chosen volume, as opposed to not scanning it with asr or Disk Utility and the restore operation defaulting to a normal image mount --> data copy operation, which is slow and inefficient. It's a tradeoff really. You can wait for ages restoring, or creating the image
I rather wait for image creation since it's the safest and cleanest option data-wise.
Check out:
$ man asr
$ man hdiutil
I'm confident it will all work just fine with your heart transplant!
Cheers

Leopard Universal boot from Firewire

I've followed some instructions I've read here and on other Mac sites about how to created an external drive which can boot both PPC and Intel Macs. I THINK I did everything correctly, but I can't boot an Intel Mac with the external drive I used. First, I formatted my external drive on a PPC into three partitions. Then I created an image of the Leopard Installer disk and "restored" it to the first partition. Then I ran the installer from the first partition to the second partition (also on a PPC) and appeared to have a successful install of Leopard. Now, though, when I use this drive on an Intel Mac, even though that second partition appears as being bootable in the Startup Disk preference, I cannot boot from it - the Mac reverts to the first partition i.e. the one with the Leopard installer. Have I made a mistake here, or did I just get a bad installation from the first partition? Thanks.

Good post and difficult to answer without alot of trial and error. I've accomplished this objective but made some mistakes along the way and countermeasured them finally.
When you partitioned the external did you check under options in Disk Utility that the mapping way APM ie Apple Partition Map? I know Disk Utility is to pick the proper choice as default but I had some situations where it did not.
Second when you restore that image that's fine but why would you install Leopard on the next partition? No need. Once you restored the Leopard DVD to the partition using APM then you can boot a PPC or Intel Mac. Then you can install Leopard to your drive of choice. You can even open Disk Utility with that partition booted and use it to trouble shoot.
As far as the problem when you did install Leopard on that other partition I can't answer that question. The Macfixit article was good but as the guy stated in both articles he was not sure on the proper method. You don't need to make an image file first. You can just drag the DVD from the left hand column to "source."

Snow Leopard- Not booting from start up disk

I am trying to do a clean installation of Snow Leopard on my Macbook. It previously had Mavericks, I erased everything and inserted the Snow Leopard disk, attempting to reinstall. However I boot from disk holding down "C", and then I receive a "you need to restart your computer. Hold down the Power button until it turns off, then press the Power button again" message.
I tried booting in "safe mode" but that doesn't do anything.
Anyone able to help?

If your MacBook shipped with something newer than Snow Leopard, it most likely won't run on Snow Leopard.
In the future, when you post a question to the forum, it's always a good idea to list the model of your Mac.
https://discussions.apple.com/static/apple/tutorial/ask.html

How do i get a dvd with osx snow leopard to boot from since i lost mine?

Having trouble with my early 2009 intel iMac. I have reset PRAM and SRC, used disk utility in safe mode to repair disk permissions (several were found/repaired) and tried to verify disk. System said it could not verify disk because it needed to be repaired while booted from another source. I could not find my OSX Snow Leopard disk, tried to start from Leopard disk. Now the system wont go through boot process at all. the gray screen with logo and progress bar appears, but after a minute the computer shuts down. I did run the apple hardware test (start up while holding D key) and no hardware issues were found. This must be a software issue.
Is there a way I can download a copy of OSX Snow Leopard on my laptop so I can burn a disk to boot my iMac from so I can repair the disk?

You will need the Mac OS X DVD later, because it's clear that there's a problem with the hard disk. Your Mac turns off because fsck couldn't repair the hard drive, so Mac OS X can't start up. Your only option is to format the hard drive, because it's not possible to repair it.
As you have the Leopard DVD, insert it and hold the C key while your Mac is starting. Then, choose your language and go to Utilities menu (on the menu bar) > Disk Utility, choose your hard drive at the top of the sidebar, go to Erase tab and erase the drive. If it's working properly, close Disk Utility and reinstall OS X.
If it couldn't be erased, the hard drive is damaged and you need a different one

Can I install Snow Leopard and boot from software RAID 1 (mirror)?

I have a Mac Pro (quad core 2.66 GHz) on order for my office workstation. Yeah, I know new ones are probably coming out early next year but due to budget and upcoming projects I need one now. What I'd like to do is replace the pre-installed 640GB drive with two 1 TB drives and mirror them. The 640GB drive will be redeployed to another machine in the office. Can I boot from the Snow Leopard install DVD, go to Disk Utility, setup a RAID 1 with the two drives, install Snow Leopard to the mirror and then boot off the mirror set?
I've searched and found offhand comments to the effect that installing to and booting from a software mirror is OK, but I'd like to know for sure that it's OK. Any experience that you have with such a configuration would be nice to hear.

Yes. But before you do read the following:
RAID Basics
For basic definitions and discussion of what a RAID is and the different types of RAIDs see RAIDs. Additional discussions plus advantages and disadvantages of RAIDs and different RAID arrays see:
RAID Tutorial;
RAID Array and Server: Hardware and Service Comparison>.
Hardware or Software RAID?
RAID Hardware Vs RAID Software - What is your best option?
RAID is a method of combining multiple disk drives into a single entity in order to improve the overall performance and reliability of your system. The different options for combining the disks are referred to as RAID levels. There are several different levels of RAID available depending on the needs of your system. One of the options available to you is whether you should use a Hardware RAID solution or a Software RAID solution.
RAID Hardware is always a disk controller to which you can cable up the disk drives. RAID Software is a set of kernel modules coupled together with management utilities that implement RAID in Software and require no additional hardware.
Pros and cons
Software RAID is more flexible than Hardware RAID. Software RAID is also considerably less expensive. On the other hand, a Software RAID system requires more CPU cycles and power to run well than a comparable Hardware RAID System. Also, because Software RAID operates on a partition by partition basis where a number of individual disk partitions are grouped together as opposed to Hardware RAID systems which generally group together entire disk drives, Software RAID tends be slightly more complicated to run. This is because it has more available configurations and options. An added benefit to the slightly more expensive Hardware RAID solution is that many Hardware RAID systems incorporate features that are specialized for optimizing the performance of your system.
For more detailed information on the differences between Software RAID and Hardware RAID you may want to read: Hardware RAID vs. Software RAID: Which Implementation is Best for my Application?

I want to erase from Leopard and restore from Time Machine, help!

I'm about to reinstall Leopard and I want to zero all of my internal hard drives and start fresh. (im trying to get to the bottom of a kernel problem).
Anyways last night I did a Time Machine backup to a new 2TB WD HD. Everything appears to be backed up fine, but I want to make sure I can restore from Time Machine before I go and do this.
Please let me know if there are any precautions I should take into consideration or if there is a good way to go about doing this.
Thanks!

You could try restoring your backup to a new drive before you over-write your working system. That will allow you to test your backup and skills before risking too much down time.
Add a drive large enough to restore the backup to and boot from the Leopard DVD. After you choose your language you can get to the Utility menu to restore Leopard from a TM drive.
Here's a pretty good "walk thru" on the entire process:
http://duncandavidson.com/blog/restoringfrom_timemachine/

G4 Digital 466 (Leopard Install) Boot from "C"

Thank you for Looking, I have operated my G4/466 since 2000.
My Upgrades over the years are:
Sonnet/Encore 1.8 gig processor
ATI Radeon 9600 Mac & PC Version
(3) 512 Sticks
I purchased Leopard, installed it on my Slave Drive (original 30 gig disk), worked Great.
decided to Update on my 60 Gig upgrade, my main Start up w/ the Family as Users.
Leopard never loaded, put the install disk back in, Ran TechTool, and I am not able to use my Command Start up Keys.
I cannot boot from CD/DVD by holding Down "C".
Are there any Options??
Disk Warrior will not even boot!

"My Reader is a Sony Upgrade DVD."
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Macbook Pro does not boot from install CD, boots from non-apple live CDs

This story begins with my macbook becoming entirely unresponsive while just sitting around with the desktop in focus. My current problems begin with the third of such freezing events. It felt like the hard drive had stopped responding since everything looked fine and I could move my mouse, but as soon as I attempted to access anything that depended upon the file system (ie everything not already in memory) that thing I attempted to access would freeze up as well. The only thing I can do when these happen is to force a shutdown.
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I am having the exact same issue. I can only log into the system in safe mode. Holding down the Shift key when turning the machine on, until the log window appears.

How do I stop my ibook from trying to boot from the network

I have an older Ibook 4g and I have been trying to learn how to use it. Somehow I changed the boot from the hard drive to boot from the network. can someone help me? Also I would like to upgrade the os from osx 10.3 to a newer version.

Don't apologize for asking for help. That's why we're here.
Have you tried starting up in Safe Mode? If not, I suggest that you give it a try. This will take quite 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 started up in Safe Mode, go to System Preferences > Startup Disk and select the Mac OS X startup volume (Macintosh HD unless the name has been changed). Then try starting up normally. If you are now able to start up, go to Applications > Utilities > Disk Utility and repair permissions on the hard drive.
If you still can't start up into OS X, it may be an indication that the hard drive has problems. In that case, having the system discs is almost essential.

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Same problem here, it only surfaced in the last week or so, right after I installed the latest updates from Apple.
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I may have found a solution to my problem, but I don't know if it is the right fix... this is what I ended up doing:
I looked at some apple support forums. Found this link (which I had already tried using the offline archived folders for the last few versions).
I tried mounting and installing this flash version (which is the same as the 12.0.0.77 available on adobe's website). Still gave me the general installation failure message.
Then I saw there is a similar folder called 12_0_r0_77_debug. So I mounted the highlight dmg file below, and the installation was successful.
Is it ok/safe for me to use this version of flash? Should i have installed the dmg file one over to the right of the one I selected?
Are the plug-in options secure or should I adjust the settings (see pics below)?
Sorry for all the questions... I have a curious mind.
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Hey, i just run in to something similar, tonight while trying to fix a computer.
The user set the time and date on his computer to 1998 and computer locked everything including time and date in system preferences, and his user account basicly making him from administrator to guest. he could not almost any program properly that required administrator privilages.
to fix this we used this comand in terminal " sudo date 201703162014 " todays time and date
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we tryed everything and this fixed in 2 seconds
ps: when you type sudo in terminal it whil give you a warning the improper use of this command is bad.... click continue.otherwhise you will not be able to execute the command.
thanks again for this post and have a great day

Help reverting to Tiger from Leopard - No boot from CD

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