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xen
23998-pygrub-GPT.patch
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File 23998-pygrub-GPT.patch of Package xen
# HG changeset patch # User Michael Young <m.a.young@durham.ac.uk> # Date 1319566554 -3600 # Node ID 85d7b207fabcd1cbda8f93e3937c5990f42a2cf9 # Parent f273bce1fc265b9f71879705639a0b14da03f6e1 pygrub: check all GPT partitions On Fedora 16 the first GPT partition is a boot partition for grub2 with the grub2 configuration in the second partition. Check all GPT partitions for grub configuration, not just the first. [ Also remove now-inaccurate comment. -iwj ] Signed-off-by: Michael Young <m.a.young@durham.ac.uk> Tested-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com> Committed-by: Ian Jackson <ian.jackson@eu.citrix.com> diff -r f273bce1fc26 -r 85d7b207fabc tools/pygrub/src/pygrub --- a/tools/pygrub/src/pygrub Tue Oct 25 17:04:41 2011 +0100 +++ b/tools/pygrub/src/pygrub Tue Oct 25 19:15:54 2011 +0100 @@ -77,10 +77,17 @@ def get_fs_offset_gpt(file): fd = os.open(file, os.O_RDONLY) - # assume the first partition is an EFI system partition. - os.lseek(fd, SECTOR_SIZE * 2, 0) + os.lseek(fd, SECTOR_SIZE, 0) buf = os.read(fd, 512) - return struct.unpack("<Q", buf[32:40])[0] * SECTOR_SIZE + partcount = struct.unpack("<L", buf[80:84])[0] + partsize = struct.unpack("<L", buf[84:88])[0] + i = partcount + offsets = [] + while i>0: + buf = os.read(fd, partsize) + offsets.append(struct.unpack("<Q", buf[32:40])[0] * SECTOR_SIZE) + i -= 1 + return offsets FDISK_PART_SOLARIS=0xbf FDISK_PART_SOLARIS_OLD=0x82 @@ -114,7 +121,9 @@ continue # no solaris magic at that offset, ignore partition if type == FDISK_PART_GPT: - offset = get_fs_offset_gpt(file) + for offset in get_fs_offset_gpt(file): + part_offs.append(offset) + break # Active partition has 0x80 as the first byte. # If active, prepend to front of list, otherwise append to back.
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