Can be possible install snow leopard on my PowerPC G5 PowerMac 4x2.5GHz PowerPc G5

can be possible install snow leopard on my PowerPC G5 PowerMac 4x2.5GHz PowerPc G5 QUAD 8GB RAM

Be sure to read
https://discussions.apple.com/docs/DOC-2295
If you decide to get an Intel Mac. As migrating data is not straight forward.

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How can I re-install Snow leopard having installed Lion? The disk supplied states that I cannot use the version of 'Install Mac OS X'...HELP!

How can I re-install Snow leopard having installed Lion? The disk supplied states that I cannot use the version of 'Install Mac OS X'...HELP!

None of the instructions usually given for downgrading seems to mention the fact that you will lose some data in built-in applications, including at least Mail. When you installed Lion, your Mail database was converted from the format used by Snow Leopard's Mail to that used by Lion's Mail. There is no way to reverse that conversion. Therefore, you will lose your entire Mail database. If your messages are all stored on a remote server, that may not be an insurmountable problem, but otherwise you'll have to restore from the last backup you made before the upgrade, and then you'll still lose all changes to the database made since that time.
Another fact not often mentioned is that downgrading is usually the worst possible solution to a problem with Lion. But that's the answer to a question you didn't ask.

Can I re-install snow leopard instead of Lion

Can I re-install snow leopard instead of Lion

Downgrade Lion/Mountain Lion to Snow Leopard
1. Boot from your Snow Leopard Installer Disc. 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.
2. After DU loads select your hard drive (this is the entry with the
      mfgr.'s ID and size) from the left side list. Note the SMART status
      of the drive in DU's status area. If it does not say "Verified" then
      the drive is failing or has failed and will need replacing. SMART
      info will not be reported on external drives. Otherwise, click on
      the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions
      from the drop down menu to one. Set the format type to Mac OS
      Extended (Journaled.) Click on the Options button, set the
      partition scheme to GUID then click on the OK button. Click on
      the Partition button and wait until the process has completed.
4. Quit DU and return to the installer. Install Snow Leopard.
This will erase the whole drive so be sure to backup your files if you don't have a backup already. If you have performed a TM backup using Lion be aware that you cannot restore from that backup in Snow Leopard (see below.) I suggest you make a separate backup using Carbon Copy Cloner.
If you have Snow Leopard Time Machine backups, do a full system restore per #14 in Time Machine - Frequently Asked Questions. If you have subsequent backups from Lion, you can restore newer items selectively, via the "Star Wars" display, per #15 there, but be careful; some Snow Leopard apps may not work with the Lion files.

Why can't I install Snow Leopard on my videos hard drive?

I have a Mac Pro with four hard drives. Lion is on the primary drive but I need Snow Leopard for a legacy app. My plan is to install Snow Leopard on a hard drive that I use for video projects, and then restart from that drive when I need to use the old app. The problem is that the Snow Leopard installation disk says that it can't install onto the videos hard drive unless I partition the hard drive, which will erase all the data. Why can't it install onto the videos hard drive? There's no operating system on that hard drive. The hard drive has folders for Final Cut Express Projects, iMovie Events, iMovie Projects, DVDs movies I've ripped, a folder of music, and an iDVD project. What do I need to remove to enable installing Snow Leopard?

If I understand what you are saying you have a drive with "stuff" already on it and you want to install a version of OSX on to it while still retaining that "stuff". If that's what you want to do you cannot do that mainly because there's already "stuff" on that drive.
The only way you can do this is to either of the following:
a. Copy the "stuff" off that drive to another drive. Install the OS. Copy the "stuff" back on to the newly created boot drive.
b. Copy the "stuff" off that drive on to another drive. Partition the drive into at least 2 partitions; one for the boot and one for the "stuff". Install the OS into one of the partitions. Copy the "stuff" back to the other partition.
Either way, if you want to use that disk for a boot disk, you got to get that "stuff" out of the way to do the OSX install on to that disk.

I have an IMAC 11.with no operating system can I still install snow leopard

I have an IMAC 11.2 with no operating system can I still install snow leopard

Yes, but you must get Snow Leopard from AppleCare. Be sure to tell them which model you have. I have the exact same model, and twice they sent me the wrong discs under AppleCare.

Why can't I install Snow Leopard on an external drive?

In order to open applications which have been rendered useless when I installed Lion, I have been trying to install Snow Leopard from the Install DVD on an external drive. For some reason, it either hangs up and stalls during the installation or, when it does finish the process, I am unable to boot from it. It hangs up and the gear rotates forever. Is it not possible to do what I am attempting to do, whih is to get some use out of my now useless applications, or is there some way to accomplish this with which I am unfamiliar?

I see.
BTW have you considered abandoning Quicken? I was a long time (at least 10 years) Quicken user however it's clear Intuit does not consider the OS X market an important one or not important enough to come out with a true Quicken replacement that will run on the most contemporary version of OS X. Personally I (along with thousands of others) decided the time was right to begin looking at alternatives to Quicken. I chose iBank for it's similarities to Quicken, it's ability to import my Quicken data and it's support. I began using it several months ago now and have been very happy. IMHO it's a better solution than what you're attempting and staying with "dead" software is simply postponing the innevitable which will only become more difficult the longer you postpone it.

Reset Macbook and now I can't re-install Snow Leopard

My mom bought me a late 2009 white Macbook three weeks ago. It was working fine the first few days until I decided to purchase Lion and then two days later it crashed and I had to erase the hard drive and reinstall everything. It took me about a day to fix and reinstall everything, but this time I didn't install Lion. A week later my computer crashed again and I tried to erase the hard drive again and re install Snow Leopard, but this time nothing will install. I'm trying to avoid the hour drive to the closests Apple Store, so if anybody knows how I could fix this it would be great! I'm desperate at this point :/

I actually tried installing the disc again so I could get the message it gives me, but it seems to be installing with no problem. But the message I was getting before was somewhere along the lines "Install failed please restart computer" and then at the bottom it would say to go to disk utilities and repair the disk and I would do that and try to reinstall, but the same message would pop up.

12 Core MacPro freezing, can't re-install Snow Leopard to SSD

Hello,
My MacPro started freezing right after Christmas this year, seemingly as I set-up my new iPad2 (although I think this is a coincidence).
Seems to happen after the computer wakes from sleep. Mouse works right up to the time I shut down via the power button but becomes increasingly useless. First it works, then it allows me to access menus & raise the dock but not activate anything, then the dock freezes & nothing responds (but the mouse is still mobile). Key commands don't work at this point either. I've also noticed that when this happens (upon awakening), some of the icons on the right side of my menu bar are missing: Time Machine, Spaces, Airport & Energy Saver.
I've spent days trying to fix this on my own. Here's what I've tried so far:
Run Disk Utility, Drive Genius, Disk Warrior, reset PRAM & NVRAM, corrected permissions (including those of my home folder via terminal) & tried to reinstall Snow Leopard.
As to reinstalling the OS, I started with my original gray factory SL disk. Inserted, selected printers, languages, font prefs & started. After about 15 minutes got blue screen, DVD drive stopped chewing. I let it go & in another ten minutes the original screen appeared asking me if I'd like to install the OS. This time, my boot disk wasn't shown.
Restarted from disk this time, ran Disk Utilities but drive wasn't showing there either. Quit, restarted normally & all was there.
Tried reinstalling again, got to gray screen with apple logo but it stopped there. Let it go overnight but it was still there in the morning. No messages.
Thinking the disk might be bad, I started from the retail Snow Leopard install disk I bought for my MacBook Pro... same result.
Reran all tests. Including extended Apple Hardware Tests: no problems.
What I've got:
12 core MacPro 2 x 2.66ghz (Sept. 2010)
16 gb 1333mhz DDR3 RAM
ATI Radeon HD 5870 graphics card
Set up (per recommendations on LLoyd Chambers Diglloyd MPG site):
Boot disk/applications (in second optical bay): 120 GB OWC Mercury Extreme Pro SSD
GUID partition, Journaled HFS+
2 TB Western Digital Black Caviar for TimeMachine: internal
2) 2TB WD black Caviars & OEM 1 TB RAID 0 Striped to create:
3.48 TB data drive (my home folder)
768 GB scratch disk.
This has been my set-up since day one & has worked fine. In early December 2011 one of the WD HDD's died. Warranty replacement, rebuilt the RAID, recopied my data, re-associated my home folder & all worked fine for about a month (did a lot of research during rebuilding) before current glitch. No problems with freezing prior to late December. However, up until that time I believe my energy saver prefs were set to Never allow the HD to sleep (I do some overnight rendering). I did recently change that to sleep after 3 hours.
I'm hoping a clean install of the OS, then the 10.6.8 combo updater & finally a fresh install of all of my apps might cure things. Even now, my machine runs very quickly (now even quicker than before the hard drive replacement). I want to solve this before these hard resets start writing bad blocks to my drives. Also hoping that a clean install of the OS will be able to link back to my current TimeMachine back-up.
Sorry for the length of this post but I wanted to state what I have unt what I've done in the hope of finding a solution.
I've searched here & online for answers without much luck so this is my last ditch effort before disconnecting & lugging my 70lb. machine to the Apple Store.
Thanks for any help.

I think I might have this mess sorted out, here's how I got to where I am.
Early this week, in an effort to eliminate another variable, I took my machine apart & blew it out with my compressor. I removed all the drives, including the SuperDrive, the RAM & graphics card & blew them out separately then cleaned their contacts with a bit of contact cleaner on a cotton swab & reseated everything making sure that there were secure connections. After reassembly I reconnected the machine, restarted & all seemed well for a few days to the point that I was confident enough to change my Energy Saver settings back to putting the disk to sleep after an hour. That night I let it fall asleep on its own & when I awakened it the next morning, it froze again.
I called Other World Computing & asked for their help. After explaining the situation the tech suggested a few things which I'd already done & suggested that I continue trying to reinstall the OS. He did say that they were aware of a "wake from sleep" issue with my model SSD but that the problem was usually associated with laptops. Like in my case, it only seems to happen when the drive falls asleep on its own, not if you put it to sleep manually. He said that if the problem continued after a clean reinstall I'd need to return the drive to have it reflashed (whatever that means).
I started up from my original OS DVD, opened Disk Utility but the SSD wasn't shown in the window (as happened before). I called back to OWC & they issued me an RMA offering to replace the drive. I've got some work that needs to be finished this weekend then I'll box it up, send it off & report back next week when I try it all again with the new drive.
Thanks again for continued help. It's good to have someone to bounce thoughts off of!
P.S. A small piece of advice to anyone reading this that might be dealing with similar problems, the tech mentioned that you shouldn't use any disk utility to repair bad blocks on an SSD since they don't use blocks. He said it can sometimes compound the problem as those programs will try to move things to compensate.

Why Can't I install Snow Leopard on an external HD

I am currently running 10.7.1 on my MacBook Pro which I have had for a week or two lees than 12 months.
Firstly, why I want a bootable Snow Leopard HD doesn't matter.
Secondly, the Snow Leopard Install Disc is 10.6.3. The external HD is a Mac OS Extended (Journaled) Partitioned GUID HD.
When I inserted the SL Install Disc I received the following rebuke.
Tried a Leopard Install disc, Same thing.
Tried the Snow Leopard Install disc that came with the computer, Same thing.
Consulted the local Apple expert and she brought her SL bootable HD around and it booted okay.
I was able to get her to install a bootable copy of SL on 2 of my old HDs and they booted from her computer without problems. I don't know what model her computer was. When I connect either of the HDs using FW 800, Startup Manager admits that it exists. When I selected it as my boot disc all that happens is a hanging Apple and no sign of a gear, rotating or otherwise.
I have tried various remedies, connecting with USB instead of FW, sacrificing one of my newer backup discs (I have 4) and cloning onto one of them, and swearing a lot.
Everything I have tried has been a failure.
Any suggestions? I am assuming it must be something to do with my computer because the same discs boot from my friends' computer. Of course that does not explain why her HD boots okay. The fact that the disc that came with the computer won't boot is a worrying conundrum.

I have a Mac that originally came with 10.5, then upgraded to 10.6 with 10.6.3 retail disk then to 10.7 online.
I was able to BOOTCAMP partition, change the BOOTCAMP partition from MSDOS to HFS+ journaled and renamed Snow Leopard.
I was able to hold c and boot off the 10.6.3 installer disk and install 10.6.3 into the Snow Leopard Partition. The computer booted and worked fine in either OS.
I was also even able to erase the whole drive from a Lion boot DVD...
http://eggfreckles.net/notes/burning-a-lion-boot-disc/
...create 7 partitions and install Lion, Snow, Windows and Linux in four bootable partiitons with a liitle help from rEFIt firmware software.
In all times I was able to boot off the 10.6.3 install disk, even with Lion installed. But Lion's Disk Utility had to format the entire drive to update the partition map first to update it.
The only thing I can think of is your disk is dirty enough or has a flaw small enough that her machine doesn't catch it and yours does. Since she booted fine off the disk and you didn't, despite both having Lion right?
You can clean and polish the bottom of the disk with a very soft cloth and a bit of rubbing alcohol.
You can also create a new bootable OS X 10.6 installer disk following these directions, it might cure the bad spot with error checking that occurs.
http://www.walterjessen.com/make-a-bootable-backup-snow-leopard-install-disc/

Why can't i install snow leopard as a virtualisation

I want to upgrade to lion (actually I don't, but I will lose my mobile me email account if I dont) but I don't know why I can't still run snow leapord through vmfusion. There are still several non lion compatible apps I need to use!!!!
does anyone know a workaround

You don't have to lose the email account. Just migrate it to iCloud, and tell it you have Lion installed even if you don't. You can still use your email through Snow Leopard.

Why can't I install Snow Leopard in my MB Pro?

I have Leopard in my Macbook Pro (Intel) and would like to upgrade to Mountain Lion. I have it on the disk that came with my husband's Mac Pro, but if I insert the disk it says it can't be installed on my MBP. Is that because it's only licensed for the Mac Pro or is there another reason?

It's because the 10.6 your attempting to use is machine specific with hardware drivers for that model of Mac only.
You will need the 10.6.3 white retail disks, call Apple via phone to order.
BTW, a 10.5 era machine may not run 10.7 or 10.8, or may only run 10.7, or if it does run either may do so slowely and wont' run your older PPC based software and hardware drivers.
You might even have to upgrade RAM, so be sure of your hardware requirements and expect to replace some software with new copies.
IMO it's best to stick with 10.6.8 on most pre 2010 issue Macs.
Things to consider before upgrading OS X

Can I still install Snow leopard?

Is there any way that I can still download Snow leopard from the apple store? Or where can I download it without tech support?

If your new Mac Pro was delivered with Lion, you probably cannot reliably run Snow Leopard on it. You might ask in the MacPro discussion to see if anyone is able to do that with your configuration. Be sure to include what operating system your system was delivered with.

HT3593 how I can run or install snow leopard into os x10 4 11?

I running at my macbook pro 15' ,os x 10 4 11 and i will like to up grade to SNOW LEOPARD 10 .6 haw ....?

The OS 10.6 Snow Leopard install DVD is available for $19.99 from the Apple Store:
http://store.apple.com/us/product/MC573/mac-os-x-106-snow-leopard
and in the UK:
http://store.apple.com/uk/product/MC573/mac-os-x-106-snow-leopard

HT3910 can i just install snow leopard over 10.5.8 without erasing my hard drive?

can I?

Yes.
But make a very good backup first in case things do go bad (they can, even if it is rare).

Help on installing Snow Leopard on Macbook pro mid 2009

I have macbook pro mid 2009 with 10.5.8 upgrade as latest. I am planning to install snow leopard on it. However before i do that i will upgrade the hard disk to 500gb and ram to 8 gb. As i never done reinstalling os on mac My question is
Should i install the original os first (which is leopard) and then upgrade it to snow leopard and backup my files from time machine ?
or
Can i just install snow leopard and back up my files from time machine?
Thanks for your answers in advance

I would upgrade your system to Snow Leopard first, then backup the entire system to Time Machine. Then upgrade your hard drive install Mac OS X 10.6 then on the set up screen (Do You Already Own a Mac?" click the button that states "from a Time Machine backup".

Can be possible install snow leopard on my PowerPC G5 PowerMac 4x2.5GHz PowerPc G5

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