Can Leoprrd install on a external USB HD and boot from it.

hi, first post here.
I have serveral external usb hd. I wanted to know if i attach one to my aging G4 1 ghz 512 mb mac.
Put in Leopard Install disc in my dvd drive, will Leopard install on the external and boot from it.
this way I could somehow dual booy 10.4 or 10.5... Is this even possible.
Ps I also have a extrnal firewire drive but would perfer to install and boot from the USB port instead.
I know tiger didn't let me do this....but perhap Leopard will.

a Drive Partitioned in GUID will NOT boot to a PPC (G4,G5) machine. you need to Partition the drive using APM. APM will boot on both PPC and intel machines.
A GUID 10.5 startup will be reconized by the system startup prefrerence. but if you try to restart the computer using that startup, it will give you the missing OS icon and then revert back to the system drive.
Also I've noticed that you must be installing from a PPC systme to be able to install on an APM drive. If your on an intel drive, it will force to repartition to GUID before letting you install.
And since PPC doesn't support GUID, you can't install GUID while booted to a PPC.

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Can i install SL on external usb drive & how to transfer over existing HDD

Hi
I have a MBP with around 200Gb used on a 500GB hdd ( installed after warantee ran out ). The MBP has been working fine for a year or so now but when i tried installing Snow Leopard i found the HDD was not setup as GUID which stopped the installation.
I thought i would install SL on an external USB drive which had been setup as GUID but after 4 attempts this failed as well for some unknown reason.
What i would like to know is,
1. if possible, how to transfer my data and settings etc to the external hdd from my current hdd inside the laptop.
2. How to set up boot camp ( i have a few ms programs that run erratically in mac fusion or parallels)
Can anyone help with this?
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Hi Harrison,
is this a firewire drive? Be aware that you cannot boot from a USB drive: Don't start up from an external USB device.
Also make sure your drive's firmware is up to date.

Can i install leopard on external drive to recover files from internal hard drive

Ok i am havinga problem with laptop ... wont restart. Power on and mormal grey screen appears ... then a bar appears below the spining dashes and after a few increments the laptop automatically shuts down. Now is it possible to install OS on extrenal to allow me to access the laptops internal drive to save files?

Welcome to Apple Discussions!
Yes you can do that, though I'm not too sure that Iomega's firmware is up to date to do it. Be sure that any data you have on the Iomega is backed up elsewhere before attempting it. Some Firewire drives without up to date firmware from the manufacturer may become invisible and unusable after a software update on Mac OS X 10.3 or later. Also an AGP PowerMac needs its firmware updated while booted from Mac OS 9 before installing Mac OS X 10.2 or later:
http://docs.info.apple.com/article.html?artnum=86117
That said, if after testing you find it does work, you can switch booting between both drives using the Option key booting as described in the Startup Manager article:
http://docs.info.apple.com/article.html?artnum=106178
Leave OS 9.2.2 on your internal, and 10.4 on your external. That will be a lot easier than partitioning. Some information I wrote for others which can help you on your migration to Mac OS X is provided in this link below:
http://www.macmaps.com/macosxnative.html
If you really want to partition, be aware that only third party software is available to partition without erasing the entire drive, and you'll want to make sure additional partitions that will boot Mac OS 9 have Mac OS 9 drivers installed as my link above states. Whatever you do, be sure you have at least two copies of your data at all times:
http://www.macmaps.com/backup.html
Disclaimer: Reference to links I make to my Macmaps.com website are a for your information only type reference. I do not get any profit from this page, and it is open to the public.

How can i install snow leopard on my mac G5 using a command line and booting from an external usb rom, since my disk i have is not a bootable media

How can i install snow leopard on my mac G5 using a command line and booting from an external usb rom, since my disk i have is not a bootable media

Hi.
You simply can't. Snow Leopard is compiled in Intel binary only.
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I have a late 04 12" PowerBook G4 and I'm getting an external USB HD. Can I install an OS on the external drive and boot from it?

One other thing I just thought of - your powerbook will only have USB 1 ports, does it not?, so a USB drive is going to be dog Sloooooow. I have a '06 Powerbook G4 that still runs, and it was/is horrid with a USB drive.
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Drive Partition and Format
1.Open Disk Utility in your Utilities folder.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.
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4. Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Click on the Erase tab in the DU main window.
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Can I install onto an external hard drive + run off it?

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If possible, will the system run at the *same* speed as the built in hard drive?
ALSO: Am I correct in saying that if I replace my current hard drive with an SSD one?
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OS X doesn't matter what disk you boot from, as long as it can be formatted properly in Disk Utility. You can boot from a USB stick drive if it's big enough.
Thunderbolt would be the fastest, the drive would be the limiting factor there. You can find Thunderbolt drives like these at stores like macsales.com. But USB 3 might also feel fast enough.
If you have boot systems installed on many drives connected to your Mac, the way you tell the Mac which one to use is to hold down the Option key at startup. This will present icons of all the connected drives you can boot from, then you just pick one and go.

Can't install Leopard on external drive

After speaking with someone at the Genius Bar last week, we determined that the problem I'm having with my eMac is probably due to the 4-5 year old internal hard drive finally getting ready to give up the ghost. ;-(
I asked if it would make sense to buy an new external drive, load Leopard on that, and boot off that while I save for a new Mac. He suggested that would work. (While the speed might not be ideal over a USB connection, I'm not too concerned with that. As long as the kids can do their homework, and I have a place to store photos it's fine.)
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Any idea why I can't install on the external, and more importantly, can I work around it somehow before my internal drive dies for good?
Thanks,
Tim

Hi JDB38;
There is no such thing as an Intel G5. It is either one or the other but never both. An Intel tower is a Mac Pro. A G5 is a tower with a PowerPC processor in it. So which do you have?
Allan

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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.
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Can Leoprrd install on a external USB HD and boot from it.

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