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Fix GPT code to allocate space for /2/ tables.

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17408 is the size of the table being made, but there's one at the
beginning and one at the end.
This commit is contained in:
Peter Jones 2012-07-25 11:52:46 -04:00
parent 0f02b5c920
commit 0f2c6ed007
1 changed files with 5 additions and 4 deletions
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9
src/sbin/mkefiboot
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@ -92,15 +92,16 @@ def macmunge(imgfile, product):
def mkefidisk(efiboot, outfile):
'''Make a bootable EFI disk image out of the given EFI boot image.'''
# pjones sez: "17408 is the size of the GPT tables parted creates"
partsize = os.path.getsize(efiboot) + 17408
disksize = round_to_blocks(17408 + partsize, 512)
# pjones sez: "17408 is the size of the GPT tables parted creates,
# but there are two of them."
partsize = os.path.getsize(efiboot) + 17408 * 2
disksize = round_to_blocks(2 * 17408 + partsize, 512)
with LoopDev(outfile, disksize) as loopdev:
with DMDev(loopdev, disksize) as dmdev:
check_call(["parted", "--script", "/dev/mapper/%s" % dmdev,
"mklabel", "gpt",
"unit", "b",
"mkpart", "'EFI System Partition'", "fat32", "17408", str(partsize),
"mkpart", "'EFI System Partition'", "fat32", "34816", str(partsize),
"set", "1", "boot", "on"], stdout=PIPE, stderr=PIPE)
partdev = "/dev/mapper/{0}p1".format(dmdev)
with open(efiboot, "rb") as infile: