mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-12 13:55:32 +00:00
b05ebbbbeb
One of the biggest problems with GPT is compatibility with older, non-GPT systems. The problem is addressed by creating hybrid mbrs, an extension, or variant, of the traditional protective mbr. This contains, apart from the 0xEE partition, up three additional primary partitions that point to the same space marked by up to three GPT partitions. The result is that legacy OSs can see the three required MBR partitions and at the same time ignore the GPT-aware partitions that protect the GPT structures. While hybrid MBRs are hacks, workarounds and simply not part of the GPT standard, they do exist and we have no way around them. For instance, by default, OSX creates a hybrid scheme when using multi-OS booting. In order for Linux to properly discover protective MBRs, it must be made aware of devices that have hybrid MBRs. No functionality is changed by this patch, just a debug message informing the user of the MBR scheme that is being used. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Davidlohr Bueso <davidlohr@hp.com> Reviewed-by: Karel Zak <kzak@redhat.com> Acked-by: Matt Fleming <matt.fleming@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|---|---|---|
| .. | ||
| acorn.c | ||
| acorn.h | ||
| aix.c | ||
| aix.h | ||
| amiga.c | ||
| amiga.h | ||
| atari.c | ||
| atari.h | ||
| check.c | ||
| check.h | ||
| cmdline.c | ||
| cmdline.h | ||
| efi.c | ||
| efi.h | ||
| ibm.c | ||
| ibm.h | ||
| karma.c | ||
| karma.h | ||
| Kconfig | ||
| ldm.c | ||
| ldm.h | ||
| mac.c | ||
| mac.h | ||
| Makefile | ||
| msdos.c | ||
| msdos.h | ||
| osf.c | ||
| osf.h | ||
| sgi.c | ||
| sgi.h | ||
| sun.c | ||
| sun.h | ||
| sysv68.c | ||
| sysv68.h | ||
| ultrix.c | ||
| ultrix.h | ||