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#HOW TO CREATE A MAC RESCUE BOOT DRIVE MAC OS X#
#HOW TO CREATE A MAC RESCUE BOOT DRIVE INSTALL#
#HOW TO CREATE A MAC RESCUE BOOT DRIVE PORTABLE#
#HOW TO CREATE A MAC RESCUE BOOT DRIVE SOFTWARE#

Setting Up An Emergency Boot Drive NOTE: External USB hard disks/sticks/flash drives and/or SD Card boot drives only work on Intel Macs.

#HOW TO CREATE A MAC RESCUE BOOT DRIVE INSTALL#

If you cannot install 10.6/10.7 to the external device install it to the local hard disk in the computer and then clone the install to the external device. Then use an Intel Mac to install 10.6 and/or 10.7 as required. Then install PowerPC operating systems (10.3, 10.4 and/or 10.5) as required using a PowerPC computer.

If you are going to create a drive with multiple boot partitions for both PowerPC and Intel based Macs use Apple Partition Map.

#HOW TO CREATE A MAC RESCUE BOOT DRIVE MAC OS X#

For very old PowerPC systems (G3, G4 667MHz or slower) create a Mac OS X 10.3.9 volume on an Apple Partition Map storage device.For modern PowerPC systems (G4 1GHz or higher / G5) create a Mac OS X 10.5.8 volume on an Apple Partition Map storage device.For old Intel systems (Core Duo / Core Solo) create a Mac OS X 10.6.8 volume on a GUID Partition Table storage device.For intermediate Intel systems (Core 2 Duo / i3, i5, i7) create an OS X 10.10 volume on a GUID Partition Table storage device - this has the best version of Disk Utility.For modern Intel systems create a macOS X 10.12 or later volume on a GUID Partition Table storage device - format the volume as "Mac OS Extended" and not "APFS".You should create Emergency Boot Drives/Partitions for the different hardware/connections and operating systems you need to support: NOTE: You can create multiple volume/partitions for different versions of macOS / OS X / Mac OS X. NOTE: We do not recommend the LaCie Rugged Triple 1.5TB or 2TB models as they use two hard disks in RAID 0 mode which is catastrophic for your data if either drive fails. LaCie Rugged Triple USB 3 + FireWire 800.1TB (model number = GDRMU3EA10001BDB | part code = 0G02577).G-Tech G-Drive mini 7200rpm USB 3 + FireWire 800.1TB (model number = GDMOCEA10001ADB | part code = 0G02392).750GB (model number = GDMOCEA7501ADB | part code = 0G02388).500GB (model number = GDMOCEA5001ADB | part code = 0G02384).G-Tech G-Drive mobile 5400rpm USB 3 + FireWire 800.

#HOW TO CREATE A MAC RESCUE BOOT DRIVE PORTABLE#

Some recommended external, portable drives include:

SD card - only Intel Macs can boot from SD cards.

eSATA - this will be fast but are very model specific so not generally recommended.

Thunderbolt 1/2 - this is fast but it is only compatible with modern Macs.

Thunderbolt 3 - this is very fast but it is only compatible with modern Macs and requires specialised cables/connectors/adaptors.

USB - only Intel Macs can boot from USB devices and there are different versions of USB, some of which require specialised cables/connectors/adaptors.

NOTE: You will want to consider the connection type/device depending on the Macs supported:

#HOW TO CREATE A MAC RESCUE BOOT DRIVE SOFTWARE#

This is to allow for additional software to be installed and to be able to install macOS / OS X / Mac OS X "Combo" System Updates (see below). NOTE: It is best that the volume/partition you are going to use must be at least 20GB in size. NOTE: This process can be used for multiple types of storage hardware including hard disks, Sold State Drives (SSDs), SD cards or USB sticks/flash drives. NOTE: Make sure you have your original macOS / OS X / Mac OS X installation application or DVD disc(s) to hand or you have obtained the macOS / OS X / Mac OS X disc image.

Has various software utilities on it that you might need in an emergency.

has a slim but most up-to-date version of macOS / OS X / Mac OS X you need (so it can boot all supported Macs).

Instructions for creating an emergency macOS boot disk Creating An Emergency Boot Drive For macOS / OS X / Mac OS XĪn Emergency Boot Drive is useful if you maintain multiple Macintosh computers or just want something that can boot your Mac in an emergency.

Creating An Emergency Boot Drive For macOS Article ID = 39Īrticle Title = Creating An Emergency Boot Drive For macOSĪrticle Last Updated = 8th September 2017