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  1. #1
    Make iMac boot disk on USB flash drive

    Member Since
    Dec 22, 2010
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    1
    Make iMac boot disk on USB flash drive
    Two things:

    Can I simply do an OS install to a USB flash drive from disks that came with my new iMac and thereby create an emergency boot source?

    How big a flash drive do I need to get to also load Disk Warrior or TechTools as well as the OS onto the flash drive?

    Actually, a third thing:

    Where could I find out this information for myself, i.e., does "it" say somewhere OS takes X amt of space, Disk Warrier, X amt of space, etc.?

    Thank you all for reading and your gentle, considerate responses.

  2. #2
    Make iMac boot disk on USB flash drive
    Buzzard2010's Avatar
    Member Since
    Oct 22, 2010
    Location
    Bretforton, Worcestershire
    Posts
    2,571
    Specs:
    MacBook Pro 15" 2014, 2.2GHz i7, 16GB RAM, 250GB SSD, OSX 10.9.5 - iPhone 5s 16gb
    Welcome to mac-Forums

    You can do but I would read up about it first. You will be looking at around 8-12gb usb thumb drive stick for the job.
    Here is a link for a nice little tutorial about it:
    Install & Boot OS X Leopard from a USB Flash Drive | Maciverse

    Hope this helps

    - Simon

    If you have been helped, don't forget to use the Reputation system at the top right of their post.
    May 2011
    Nominated: March 2011 & April 2011

  3. #3
    Make iMac boot disk on USB flash drive
    bobtomay's Avatar
    Member Since
    Dec 22, 2006
    Location
    Texas, where else?
    Posts
    26,212
    Specs:
    15" MBP '06 2.33 C2D 4GB 10.7; 13" MBA '11 1.8 i7 4GB 10.10; 21" iMac '13 2.9 i5 8GB 10.10; 5s & 5c
    Personally, I would recommend an external drive instead. Then use either SuperDuper! (cheap) or CarbonCopyCloner (free) to create a bootable backup.

    Three problems solved in one:
    a backup
    a bootable backup to continue working when the internal drive dies until you have the time to get it replaced
    a bootable backup with all your tools to troubleshoot and/or restore the internal drive in case of a faulty update, app install, etc.

    16 GB flash drive: $20-$40
    500 GB external drive: $60-$70
    1 TB external: <$100
    I cannot be held responsible for the things that come out of my mouth.
    In the Windows world, most everything folks don't understand is called a virus.

  4. #4
    Make iMac boot disk on USB flash drive
    JUKE179r's Avatar
    Member Since
    Nov 01, 2009
    Location
    DohaLondonVegas
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    882
    Specs:
    '07 MBP 256GB SSD/6GB RAM/SL <--DAW!!!
    Definitely go with the external drive like bobtomay noted.
    I use CarbonCopyCloner on a 64GB thumb drive as a backup and you can boot from it. Trouble is, the thumb drive freezes up at times when using some apps.
    MBP 3,1 & 4,1 w/ Vertex 4 SSD | Logic Pro 9 | Ableton Live 8 | Traktor Pro 2 | AKAI MPK-49 | Roland MV-8000, TR-808 & TR-909 | Ensoniq ASR-10 | x0xb0x #911 | Denon DN-MC6000 | (3) Technics SL-1200MK1 | 3000+ vinyl records

  5. #5
    Make iMac boot disk on USB flash drive
    bobtomay's Avatar
    Member Since
    Dec 22, 2006
    Location
    Texas, where else?
    Posts
    26,212
    Specs:
    15" MBP '06 2.33 C2D 4GB 10.7; 13" MBA '11 1.8 i7 4GB 10.10; 21" iMac '13 2.9 i5 8GB 10.10; 5s & 5c
    If you do go with an external, FW connectivity can be worth the additional money if you are moving large amounts of data. For use only as a backup/troubleshooting device, USB will be fine.
    I cannot be held responsible for the things that come out of my mouth.
    In the Windows world, most everything folks don't understand is called a virus.

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