Installing Leopard to replace Tiger

Here's my request: I would like to do a clean install of Leopard on my MBP that is almost 2 yrs old and running Tiger. I tried putting in the DVD I got with my new MacPro Desktop, but once the installer launches and asks for my language preference, I get the message the Leopard cannot be installed on this machine... Any idea why this happens? Can I not use the installation disks from my new MacPro? This MBP has great specs and is Intel Core 2Duo w/ 2 gigs of Ram.

I don't think Apple allows mixing the Leopard DVDs that come with a machine. For example, see:
http://docs.info.apple.com/article.html?artnum=306766
However, the Leopard upgrade disc works across machines.

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Installing Leopard (regular) over Tiger (server)

Today we tried to install Leopard on a G5 tower which had previously been running the server version of Tiger. It gave us a message about being unable to just write over the system because the regular OS cannot replace server, so it would have to put all the system preferences and user accounts and all in a folder labeled "previous system" on the hard drive and then it would install the OS. We told it to do that, and it ran the install. At the very end (after about an hour and a half of installing), it gave us an error saying that it was unable to complete the installation because we were trying to put the regular version over Server and to try installing it again. We clicked the "Install" button, but it had put approximately 11 GB of who knows what on the computer, and now wants another 11 GB for the new install, but we don't have 11 GB free. You try to start the computer up without the Leopard install disk in and it does the "OS? What OS?" thing (folder with a flashing question mark), but if you have the Leopard install disk in, it tells you all about needing to create the "previous system" folder etc. and needing more disk space to accomplish this. Any ideas as to what we could try if we really don't want to reformat the drive?
Thanks.

Today we tried to install Leopard on a G5 tower which had previously been running the server version of Tiger. It gave us a message about being unable to just write over the system because the regular OS cannot replace server, so it would have to put all the system preferences and user accounts and all in a folder labeled "previous system" on the hard drive and then it would install the OS. We told it to do that, and it ran the install. At the very end (after about an hour and a half of installing), it gave us an error saying that it was unable to complete the installation because we were trying to put the regular version over Server and to try installing it again. We clicked the "Install" button, but it had put approximately 11 GB of who knows what on the computer, and now wants another 11 GB for the new install, but we don't have 11 GB free. You try to start the computer up without the Leopard install disk in and it does the "OS? What OS?" thing (folder with a flashing question mark), but if you have the Leopard install disk in, it tells you all about needing to create the "previous system" folder etc. and needing more disk space to accomplish this. Any ideas as to what we could try if we really don't want to reformat the drive?
Thanks.

Install Leopard over tiger from cd, overwrite or update?

I want to install leopard on my macbook with tiger 10.4.8 from cd.
Can i install leopard from cd on my macbook without overwriting everything.
So when i install leopard over my tiger, will it overwrite everything else or will it update the os with all files and setttings in tact?

Hi gizeh12,
I'd recommend backing up (on an external HD, CD, DVD, thumb drive, etc) any important data. While the upgrade option is designed to preserve all of your data, settings and applications, Apple strongly recommends (as do many users on these boards) that you always maintain a current backup of your data. While the percentage is very small that you'll have a hardware or system failure during the upgrade, it's always better to be prepared then in panic mode.

Install Leopard over Tiger Server

Hi,
I want to "archive and install" Leopard over existing Tiger Server. Will not be installing the server version of Leopard, just the normal OS.
Are there potential problems (other than the usual suspects) with doing a simple "archive and install" over the existing Tiger --server-- OS? Can I just do new install without sinking the ship? (Fairly experienced w/macs, know the usual routine re OS installs but am shaky when it comes to server stuff)
Thanks,
Ron W.

Actually the Server version is only required if you are going to be backing up your server over the network. If you run Retrospect on the server itself, you can get by with the Workgroup edition. The developer has a chart that explains it all:
http://www.emcinsignia.com/products/smb/retroformac/comparison/
I don't recall the details, but I even think there was an upgrade path from the Desktop version to the Workgroup version, although I had to call the developer and specifically ask for it. Regardless, the prices aren't that bad. Check smalldog.

Before I install snow leopard, I tried to move tiger into the external harddrive. My mac says it can't do because it is the OS X. So I installed snow leopard without removing tiger. After that, my computer often freezes. How can I remove tiger?

Before I install snow leopard, I tried to move tiger into the external harddrive. My mac says it can't do because it is the OS X. So I installed snow leopard without removing tiger. After that, my computer often freezes. How can I remove tiger? Or How can I prevent my mac from freezing?

McHagihara wrote:
Before I install snow leopard, I tried to move tiger into the external harddrive. My mac says it can't do because it is the OS X. So I installed snow leopard without removing tiger. After that, my computer often freezes. How can I remove tiger? Or How can I prevent my mac from freezing?
When you installed Snow Leopard, Tiger was replaced, leaving your programs and files intact.
What is causing your freezing problem is unknown, you can take Kappy's advice and remove everything, but you lose your files and free iLife programs that came with Tiger/new machine.
The 10.6.3 disk you "upgraded" with has the full 10.6.3 on it, but no free iLife suit, so a erase and install will remove what you already have installed.
You can try to locate your problem without the erase and install method by running through this list of fixes.
Step by Step to fix your Mac
But before you do anything, backup your personal data off the machine to a extenal drive and disconnect.
Most commonly used backup methods
Because if you have to follow Kappy's advice and wipe and install 10.6 fresh, it will cure your problem in nearly 99% of cases, but you have to rebuild everything. All programs and files.
How to erase and install Snow Leopard 10.6
If this is all too much for you, then STOP and call a local PC/Mac service or competant friend to assist you.
Yuo might need to install more RAM into the machine to make 10.6 run better as well.

Hi, I want to downgrade from OSX LEOPARD to OSX TIGER but I have a few questions regarding this. My iMac is originally from 2007 it came preloaded with tiger. I have original install tiger discs version 10.4.10. Is it safe to downgrade or not please help

Hi, I want to downgrade from OSX LEOPARD to OSX TIGER but I have a few questions regarding this. My iMac is originally from Sep 2007 it came preloaded with tiger. I have original install (2) tiger discs version 10.4.10. I want to know if it is safe and what are the necessary steps to do so. Also by downgrading im wondering if a lot of apps nowadays support tiger for example I have photoshop version 5 and 4 these are very important to me. One last question does anyone know of any reliable virus protection for mac that doesnt slow down your computer? because I have read that a lot of them do so. If anyone can help me I would greatly appreciate it! Here are the specs for my iMac
Model Name:
iMac
Model Identifier:
iMac7,1
Processor Name:
Intel Core 2 Duo
Processor Speed:
2 GHz
Number Of Processors:
1
Total Number Of Cores:
2
L2 Cache:
4 MB
Memory:
2 GB
Bus Speed:
800 MHz

Most of the time a perception of general slow performance is the result of installing third party junk alleged to speed up, "clean" or "optimize" your Mac, or to look for viruses that don't exist. Ideally you would know what you installed so you can uninstall it, but if you don't know or aren't sure there are techniques such as Safe Mode and creating a temporary user account to confirm that suspicion.
If you open Activity Monitor it may show a process, or processes, that occupy a lot of your system's time.
Slowness confined solely to web browser activity is often the result of an inexorable progress toward websites that demand ever more processor-intensive tasks. If your slow performance is strictly limited to web browsing, you might try disabling Flash by either uninstalling it, or use utilities such as ClickToFlash that allow you to control what Flash content gets loaded. Flash in itself is not inherently evil, but there is nothing to stop websites or the advertisers who pay for them from writing horrible Flash code that can do everything from hogging 100% of your CPU's time to causing random crashes. You can watch Activity Monitor as in the above to correlate these troublesome web pages with performance degradation.
You are correct; if your computer shipped with Tiger you may certainly revert to it. I forgot that Tiger was shipping on new Macs as recently as five years ago. To downgrade it would be necessary to completely erase your hard disk and boot with the Tiger installation DVD, followed by installing it anew. Such drastic measures are not necessary and you are unlikely to be satisfied with the results anyway.
Assuming your system is free of third party parasitic junk attached to OS X in an ill-conceived attempt to improve upon it, that your hard disk drive is sound and the boot volume has enough free space to work with, by far the best performance-enhancing improvement would be to add more memory. Buy as much as your computer can use and that you can afford. 2 GB is not that much any more.
Read the following for some recommended troubleshooting techniques from Apple:
General purpose Mac troubleshooting guide: Isolating issues in Mac OS X
Creating a temporary user to isolate user-specific problems: Isolating an issue by using another user account
Memory limitations: Using Activity Monitor to read System Memory and determine how much RAM is being used
Identifying resource hogs and other tips: Runaway applications can shorten battery runtime
Starting the computer in "safe mode": Mac OS X: What is Safe Boot, Safe Mode?

Install Leopard & Tiger on different Mac.

I just purchased Macbook (Leopard). Usually when we purchase a Mac computer, the OS will include. Can I Install Leopard on my old Mac computer (MacBook Pro-Santa), and Tiger on my new Macbook? I just purchased Macbook (Leopard). Usually when we purchase a Mac computer, the OS will include. Can I Install Leopard on my old Mac computer (MacBook Pro-Santa), and Tiger on my new Macbook? I need some opinion. Thanks. Sorry for my English.

To expand a bit on Niel's answer, you cannot instal an OS on any machine that is older than the machine itself. If your machine comes with Leopard, you can't put Tiger on it, and the Leopard install discs that come with your new MacBook are machine specific and won't work with your old machine.

New Macbook Pro + Tiger Pre installed Leopard Connectivity Problems!!!

hey guys... well let me try for the 2nd time to post this before it loses connection and crashes!!!!
on Friday i brought a new Macbook Pro 2.2ghz, for the last year i have been using a MAcbook 1.8ghz Core 2 Duo... worked flawless and loved it... but with Leopard out, i decided to take the plunge and move up to the next level and have something with better graphics and more features... so it seemed!
i erased the hdd and installed Leopard, which i had purchased for my Macbook, but decided to hold till i got this...
install went smoothly and got into OS and did the update center... started downloading... fine.... went and got a coffee... came back.... still on the first file of the update donwload.. hmmmmm weird.. normally be halfway or finished by now! i checked the wireless and noticed the send/receive was just hanging.. *not disconnected from the wireless router..* anyway i decided to hard reset the router and let it reconnect so it was fresh.. connected fine... started donwloading again.. same happened... anyway i left it donwload and do its stuff as i saw there was a key chain update which resolved some wireless issues.. great i thought.. Apple must have seen there is a problem and fixed it.. yay!!.......... heck no!
rebooted the laptop after install was done... SAME problem... not only that... i couldnt be on iChat/MSN for more than 5-10 minutes before it decided that it was going to fall asleep and stop doing anything before realizing that ****... someone is still wanting some connectivity.... by that time its disconnected/timed out from server/webpages... Webpages take about 15-30 seconds to load on intermitent basis...
Next is the bandwidth... i usually download between 180-205kb/s in Tiger on Macbook... in leopard im lucky to break the 100kb/s barrier for more than 30 seconds before it goes to 10-30kb/second!!!!!!!!! and upload speed is killed too!!!
i have read through various threads on the boards and have entered different tcp/rwin commands and turned off ipv6 in wireless but still same happens... no airport2 file either to remove..
i'm really annoyed as it seems from wanting to go to a better laptop ive only gone and brought defective hardware which i dont understand why Apple didn't test this prior to release
FIX IT quick please, i feel like taking this thing back... what use is it if i cant browse the internet which is a basic function on any laptop now a days yet vital it works!
maybe reinstalling Tiger is the only option left, there goes a weekend of installing programs/games/updates!!!!! annoyed

cheers for reply dude
will see how this gets on, also changed the channel to 6, see how that gets on..
still seems slow loading pages tho.. test from speedguide from a uk server...
683 kbps down (~0.68 Mbps, 83 KB/s) ↓
31 kbps up (~0.03 Mbps, 4 KB/s) ↑
pinging my router is
PING 192.168.1.1 (192.168.1.1): 56 data bytes
64 bytes from 192.168.1.1: icmp_seq=0 ttl=255 time=1.047 ms
64 bytes from 192.168.1.1: icmp_seq=1 ttl=255 time=1.097 ms
64 bytes from 192.168.1.1: icmp_seq=2 ttl=255 time=1.216 ms
64 bytes from 192.168.1.1: icmp_seq=6 ttl=255 time=1.114 ms
64 bytes from 192.168.1.1: icmp_seq=8 ttl=255 time=1.321 ms
64 bytes from 192.168.1.1: icmp_seq=9 ttl=255 time=1.330 ms
64 bytes from 192.168.1.1: icmp_seq=10 ttl=255 time=1.159 ms
64 bytes from 192.168.1.1: icmp_seq=11 ttl=255 time=1.189 ms
64 bytes from 192.168.1.1: icmp_seq=12 ttl=255 time=1.408 ms
64 bytes from 192.168.1.1: icmp_seq=14 ttl=255 time=7.296 ms
64 bytes from 192.168.1.1: icmp_seq=16 ttl=255 time=1.117 ms
64 bytes from 192.168.1.1: icmp_seq=17 ttl=255 time=1.167 ms
64 bytes from 192.168.1.1: icmp_seq=18 ttl=255 time=1.175 ms
64 bytes from 192.168.1.1: icmp_seq=20 ttl=255 time=1.462 ms
64 bytes from 192.168.1.1: icmp_seq=22 ttl=255 time=1.126 ms
64 bytes from 192.168.1.1: icmp_seq=25 ttl=255 time=1.126 ms
seems ok?
Although RWIN TCP/IP analyzer seems to point out problems...
MTU = 1442
MTU is not fully optimized for broadband. Consider increasing your MTU to 1500 for better throughput. If you are using a router, it could be limiting your MTU regardless of Registry settings.
MSS = 1402
MSS is not optimized for broadband. Consider increasing your MTU value.
Default TCP Receive Window (RWIN) = 65330
RWIN Scaling (RFC1323) = 0 bits
Unscaled TCP Receive Window = 65330
For optimum performance, consider changing RWIN to a multiple of MSS.
Other RWIN values that might work well with your current MTU/MSS:
515936 (MSS x 46 * scale factor of 8)
257968 (MSS x 46 * scale factor of 4)
128984 (MSS x 46 * scale factor of 2)
64492 (MSS x 46)
Your TCP Window limits you to: 2613 kbps (327 KBytes/s) @ 200ms
Your TCP Window limits you to: 1045 kbps (131 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = ON
Time to live left = 45 hops
TTL value is ok.
Timestamps (RFC1323) = ON
Note: Timestamps add 12 bytes to the TCP header of each packet, reducing the space available for useful data.

Help - tried to install leopard over tiger on iBook G4 and cannot boot up

My ibook G4 apparently does not have enough disk space to enable me to install leopard; shame, BUT in process of finding this out I cannot restart in Tiger - machine spends 3-4 mins trying then powers down to black screen.
Any help/advice gratefully received...
Thanks, Bob

Hi Bob, and a warm welcome to the forums!
Do you have a Backup?
Do you have a bootable external drive?
Do you have another Mac around so you could use FW Target Mode to clear some space...
http://docs.info.apple.com/article.html?artnum=58583
If none of the above, then using your Install Disk to Erase everything and start over completely is about the only ting left.
Due to temporary files, RAM Discs, VM, you need twice what they say minimum to install... 20 GB free.

Installing Leopard(10.5) keeping Tiger(10.4)

Hi everyone,
How do I install Leopard keeping Tiger to be able to switch between the 2 operations system? Will I be running in endless problems If I do such a thing? The reason, is that I need Leopard to run OsiriX 3.1(processing software for medical images) and was told that CS2 is not agreed with Leopard, so need to keep Tiger.
Hopefully they could get along!
Thanks!

I have Power PC G5 (not intel), and already using the other SATA connection on motherboard (only 2) for external hard drive for Final Cut pro 5. I think the best would be another hard drive with Firewire which I would use only for OrisiX. Is is pretty straightforward to install an operation system onto an external hard drive?
Thank you for your time!

Can't Install Leopard, Won't Recognize Tiger

Hi - I want to install Leopard on an iMac currently running the latest edition of Tiger (10.4.11 or so?). It meets all of Leopard's tech requirements as well. However, when I begin the process, the Leopard install system says it can't install on my iMac because I'm NOT running Tiger.
This is incorrect - in fact, the iMac came with Tiger pre-installed, and that's the only OS it's ever run. How can I convince the Leopard install disc of this fact? I don't see any options for communication besides the "OK" button. It's doubly frustrating because when it then tells me I have to restart, and asks which disk to boot from, it shows my iMac RUNNING TIGER as one of the options.
Is there a way to tell the Leopard OS disk that I DO in fact have Tiger currently installed?
Thanks in advance -

I'm most confused - not hard to do on a weekend morning with only one cup of coffee. If you have the retail Leopard installer it doesn't matter what version of OS X your iMac has. I used the same disk to install Leopard on top of 10.3 and 10.4 so something weird is going on. BTW, BootCamp should have nothing to do with it - my own computers had BootCamp beta when I upgraded to Leopard.
What kind of upgrade are you attempting? Archive & Install or Erase and Install? If you are attempting the A&I what the installer might really be trying to tell you is that there's not enough disk space to perform that installation. Then again, I know that Leopard's installer is able to give that error message properly. The installer might be coming across a weird error when it is checking the drive so run Disk Utility and make sure the drive doesn't need to be repaired.

Replacing the HDD and installing leopard (PLEASE HELP)!!!

hi there,
i currently have a macbook that has just gone out of warranty. i bought a new HDD from WD, installed tiger (using the original discs that come with the mac) and then installed leopard. it seemed to be working fine (apart from a few keyboard buttons playing up), until less than 2 weeks of doing this, the hard drive crashed out on me. i was absolutely gutted! mainly due to the fact a lot of the files i copied over and new ones had gone. i put in the original HDD (which i left as it was) and it worked as normal. i have now received a new HDD from WD and am about to install it along with 2 x 1GB RAM sticks.
i have no problems installing the HDD again or the RAM. the only concerns are, when selecting the new HDD when previously installing it, i lost out on about 30GB of memory (10GB after formatting, 15GB after installing tiger & 5GB after installing leopard). that's about a quarter of my HDD gone. i would have installed leopard clean but i wanted ilife '06 that came with tiger.
is there a way to install leopard clean and then install just ilife '06 by itself from the installation discs, so i can save some space on the new HDD?
if anyone can help i would be so grateful, thanks, ravi.

Install Leopard by itself. Do not install Tiger. When you do your Leopard install watch the lower left corner of the install screen and when you see custom click it. That way you can choose not to include all the printer drivers and language files. That will knock off a few gig.
Once Leopard is running insert your 1st install disk. Once it opens choose the install bundled software choice. Once it is open you can do a custom install and put just what you want back on your MacBook. That way you don't get all the extras.

De-installing Leopard and re-installing Tiger

After installing Leopard, my Final Cut Express won't work, so I want to de-install Leopard and Quick time 7 and re-install Tiger and earlier versions of Q Time. Do I do this?

By erasing your hard drive then reinstalling Tiger and all required updates. Be sure to backup your files first so they can be restored after the reinstallation.

Can I install Snow Leopard directly over Tiger?

Running iMac 7,1 on Tiger (10.4.11). Have 1 GB RAM and a 2 GHz Intel Core 2 Duo processor. Can I install Snow Leopard
directly over Tiger?

Yes, you will be upgrading your system, take a look at this link, http://support.apple.com/kb/HT4949

Installing apps ONLY from Tiger disc onto Leopard system

Hi- I recently installed leopard. For the sake of brevity Ill just say I didnt do an exemplory job copying my apps beforehand. That said; I was under the impression I could custom install certain apps that were on my old Tiger install disc that are not on the new Leopard disc. Is this untrue? I popped the disc in and held down C. now I seem to be trapped in Tiger install mode, and can't seem to be able to restart the computer as normal. I tried quitting the install, but then have to select a startup disc; either Tiger, or I believe 'network startup'. I tried the latter and got a blinking globe and then back to Tiger install.
So
A: Is it possible to do the installs I mentioned? (IE, ilife type apps)
and
B: How do I get out of the installer and back to normalcy without installing the old OS?
Thanks for any help.

ok..I put the leopard disk back in and ran a disk repair and permissions repair with it. After that it said everything appears to be ok. I still could not get back to my computer so out of frustration I decided to just do an erase and install of leopard once again. Maybe this is a dumb thing to do? Because I did this...the install finished, the computer restarted, and then stayed stuck on the grey screen with apple logo and spinning icon for a long time, after which it went to a sort of grey blue, and after that black. No darwin, just black. What is going on? Should I just go back and do an erase and install with the Tiger that originally came with my computer? Im scared it's a hardware issue.
Thanks for the help.

Installing Leopard to replace Tiger

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