On Mon, 2012-03-26 at 15:03 -0500, Mark Hamzy wrote:
> This fixes two bugs. The first is that the PReP partition is not created
> during a text mode install. The second is that the PReP partition needs
> to be zeroed out before grub is run. Grub verifies that no data exists
> on the partition before installation.
>
> Updated the code per dlehman's recommendations...
Ack.
>
> ---
> pyanaconda/storage/formats/prepboot.py | 28 ++++++++++++++++++++++++++++
> pyanaconda/storage/partitioning.py | 3 ++-
> 2 files changed, 30 insertions(+), 1 deletions(-)
>
> diff --git a/pyanaconda/storage/formats/prepboot.py b/pyanaconda/storage/formats/prepboot.py
> index b7d1c60..9b65a4d 100644
> --- a/pyanaconda/storage/formats/prepboot.py
> +++ b/pyanaconda/storage/formats/prepboot.py
> @@ -23,6 +23,9 @@
> from ..errors import *
> from . import DeviceFormat, register_device_format
> from parted import PARTITION_PREP
> +import os
> +import logging
> +log = logging.getLogger("storage")
>
> class PPCPRePBoot(DeviceFormat):
> """ Generic device format. """
> @@ -46,6 +49,31 @@ class PPCPRePBoot(DeviceFormat):
> """
> DeviceFormat.__init__(self, *args, **kwargs)
>
> + def create(self, *args, **kwargs):
> + if self.exists:
> + raise FSError("PReP Boot format already exists")
> +
> + DeviceFormat.create(self, *args, **kwargs)
> +
> + try:
> + fd = os.open(self.device, os.O_RDWR)
> + length = os.lseek(fd, 0, os.SEEK_END)
> + os.lseek(fd, 0, os.SEEK_SET)
> + buf = '\0' * 1024 * 1024
> + while length > 0:
> + if length >= len(buf):
> + os.write(fd, buf)
> + length -= len(buf)
> + else:
> + buf = '0' * length
> + os.write(fd, buf)
> + length = 0
> + os.close(fd)
> + except OSError as e:
> + log.error("error zeroing out %s: %s" % (self.device, e))
> + if fd:
> + os.close(fd)
> +
> @property
> def status(self):
> return False
> diff --git a/pyanaconda/storage/partitioning.py b/pyanaconda/storage/partitioning.py
> index 49faa78..c380b0c 100644
> --- a/pyanaconda/storage/partitioning.py
> +++ b/pyanaconda/storage/partitioning.py
> @@ -120,7 +120,8 @@ def _schedulePartitions(storage, disks):
>
> if request.fstype is None:
> request.fstype = storage.defaultFSType
> - elif request.fstype == "prepboot" and storage.bootLoaderDevice:
> + elif request.fstype == "prepboot" and storage.bootLoaderDevice and \
> + storage.bootLoaderDevice != storage.bootDevice:
> # there should never be a need for more than one of these
> # partitions, so skip them.
> log.info("skipping unneeded stage1 prepboot request")
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