Unable to boot into MAC OS X 10.5

Am using MAC Model A1224

Had just did a recovery and thereafter a Software update as prompted


Midway thru the software update (about 29%), i encounter a power failure and the MAC was power off

When i was rebooting back up the MAC, it now shows me the prompt as follows:

You need to restart my computer. Hold down the Power button for several seconds or press the Restart button.


There are some wordings at the background which seems to indicate that due to the disruption during the software upgrade, it had resulted in the missing OS?

Need help on this


Command + R does not do anything hence am unable to do a re-installation of the OS as well

Thanks much

iMac, Mac OS X (10.5.4)

Posted on May 27, 2015 9:26 PM

Reply
5 replies

May 28, 2015 2:58 AM in response to BBTechHD

There is no 'recovery mode' with Leopard 10.5.8, you need the original install disk.


Some general advice on updating Leopard:


It is worth noting that it is an extreme rarity for updates to cause upsets to your system, as they have all been extensively beta-tested, but they may well reveal pre-existing ones, particularly those of which you may have been unaware. If you are actually aware of any glitches, make sure they are fixed before proceeding further.


So before you do anything else:


If you can, make a full backup first to an external hard disk. Ideally you should always have a bootable clone of your system that enables you to revert to the previous pre-update state.


Turn off sleep mode for both screen and hard disk.


Disconnect all peripherals except your keyboard and mouse.


1. Repair Permissions (in Disk Utility)


2. Verify the state of your hard disk using Disk Utility. If any faults are reported, restart from your install disk (holding down the C key), go to Disk Utility, and repair your startup disk. Restart again to get back to your startup disk.


At least you can now be reasonably certain that your system does not contain any obvious faults that might cause an update/upgrade to fail.


3. Download the correct version of the COMBO update from the Apple download site.


The Combo updater of Leopard 10.5.8 can be found here:


http://support.apple.com/downloads/Mac_OS_X_10_5_8_Combo_Update


If you prefer to download updates via Software Update in the Apple menu (which would ensure that the correct version for your Mac was being downloaded), it is not recommended to allow SU to install major (or even minor) updates automatically. Set Software Update to just download the updater without immediately installing it. There is always the possibility that the combined download and install (which can be a lengthy process) might be interrupted by a power outage or your cat walking across the keyboard, and an interrupted install will almost certainly cause havoc. Once it is downloaded, you can install at a time that suits you. You should make a backup copy of the updater on a CD in case you ever need a reinstall.


Full details about the 10.5.8 update here: http://support.apple.com/kb/HT3606


More information on using Software Updater here:


http://support.apple.com/kb/TA24901?viewlocale=en_US


Using the Combo updater ensures that all system files changed since the original 10.5.0 are included, and any that may have been missed out or subsequently damaged will be repaired. The Delta updater, although a temptingly smaller download, only takes you from the previous version to the new one, i.e. for example from 10.5.7 to 10.5.8. Software Update will generally download the Delta updater only. The preferable Combo updater needs to be downloaded from Apple's download site.


Now proceed as follows:


4. Close all applications and turn off energy saving and screensaver.


5. Unplug all peripherals except your keyboard and mouse.


6. Install the update/upgrade. Do not under any circumstances interrupt this procedure. Do not do anything else on your computer while it is installing. Be patient.


7. When it ask for a restart to complete the installation, click restart. This can take longer than normal, there are probably thousands of files to overwrite and place in the correct location. Do nothing while this is going on.


8. Once your Mac is awake, repair permissions again, and you should be good to go!


If your Mac seems slightly sluggish or ‘different’, perform a second restart. It can’t hurt and is sometimes efficacious! In fact a second restart can be recommended.


9. Open a few of your most used applications and check that all is OK. In this connection please remember that not all manufacturers of third party applications and plug-ins, add-ons, haxies etc, will have had time to do any necessary rewrites to their software to make them compliant with the latest version of your operating system. Give them a week or two while you regularly check their websites for updates.


N.B. Do not attempt to install two different updates at the same time as each may have different routines and requirements. Follow the above recommendations for each update in turn.


Lastly, Apple's own article on the subject of Software Update may also be useful reading:


http://docs.info.apple.com/article.html?artnum=106695


If you are updating Safari (or just have):


Input Managers from third parties can do as much harm as good. They use a security loophole to reach right into your applications' code and change that code as the application starts up. If you have installed an OS update and Safari is crashing, the very [i]first[/i] thing to do is clear out your InputManagers folders (both in your own Library and in the top-level /Library), log out and log back in, and try again.

So, disable all third party add-ons before updating Safari, as they may not have been updated yet for the new version. Add them back one by one. If something goes awry, remove it again and check on the software manufacturer's website for news of an update to match your version of Safari.


Most errors reported here after an update are due to an unrepaired or undetected inherent fault in the system, and/or a third party add-on.


Additional tips on software installation here:


http://docs.info.apple.com/article.html?artnum=106692


To reiterate, Input Managers reach right into an application and alter its code. This puts the behavior of the affected application outside the control and responsibility of its developers: a recipe for problems. That's not to say that issues absolutely will ensue as a result of Input Managers, but you, as a user, must decide. If the functionality of a specific Input Manager or set thereof is really important to you, you may well choose to assume the associated risk.

Again, the advice is to remove all Input Managers from the following directories:

  • /Library/InputManagers
  • ~/Library/InputManagers

especially prior to system updates (they can always be added back one-by-one later).

Solutions for troubleshooting installation, startup, and login issues in Mac OS X v10.5

http://support.apple.com/kb/TS1541?viewlocale=en_US

May 27, 2015 9:34 PM in response to BBTechHD

Mac OS X 10.6.8 and earlier need to be installed from a disk. Back up everything you can, insert a compatible one(if needed, buy a Mac OS X 10.6 DVD from the online Apple Store), and install an OS from it. As there is a damaged Mac OS X system, you may need to use the Disk Utility to repair or erase the computer's internal drive for this to complete successfully.


(127985)

May 27, 2015 11:42 PM in response to BBTechHD

To add on, i notice that the keyboard does not seems to be detected by the iMAC even though the keyboard is not faulty (as i had connect to another station to verify)

I sort of confirm it by pressing the caps lock key which does not have the green LED lighted at the background


This seems to be the reason why no matter what I press on the keyboard in view of needing to access the recovery mode or safe mode and etc, the iMAC does not seems to response


Any idea for this remedy?

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Unable to boot into MAC OS X 10.5

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