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A closer look at how CCC determines the "bootability" of a target volume |
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CCC determines whether your target volume will be bootable and indicates this beneath the "Cloning Options" section. To qualify as "bootable", the following requirements must be met:
- The target volume cannot be a disk image -- you cannot boot your Macintosh from a disk image.
- If the Macintosh is a PowerPC Macintosh, the target device must be an internal volume or on a Firewire hard drive. Intel Macintoshes can boot from either an internal volume, a Firewire hard drive, or a USB hard drive.
- The files and folders required by Mac OS X must be present on the source volume. These include: /Library, /System, /bin, /etc, /mach_kernel, /private, /sbin, /tmp, /usr, and /var.
- The files and folders that are required by Mac OS X must be selected to be copied to the target volume (applicable only to the "Incremental backup of selected items" cloning method).
- If the Macintosh is a PowerPC-based Macintosh, the hard drive on which the target resides must be partitioned using the APM (Apple Partition Map) partitioning scheme. Intel-based Macintoshes ship with hard drives formatted with the GPT (GUID Partition Table) format, and will not boot a PowerPC Macintosh.
- If the Macintosh is an Intel-based Macintosh, the hard drive on which the target resides must be partitioned using the Apple Partition Map or GUID Partition Table partitioning scheme. You may have difficulty booting or running an Intel-based Macintosh from a hard drive formatted with the MBR (Master Boot Record) partitioning scheme.
- CCC will issue a warning if the operating system that you're backing up (or restoring) is older than the OS that your machine shipped with.
CCC does not maintain an exhaustive list of hardware:shipping OS pairs. CCC also cannot determine whether the target will be bootable when the source or target are remote Macintosh volumes.
Related documentation: