forked from Mirror/pmbootstrap
c33db6315e
Parted often succeeds, but then returns a non-zero exit code, because it can not inform the kernel of the changes. In most cases this is not even necessary, so it really should not fail there. When the error was fatal, pmbootstrap will crash shortly afterwards when it tried to mount or run mkfs on the partition anyway.
77 lines
2.6 KiB
Python
77 lines
2.6 KiB
Python
"""
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Copyright 2017 Oliver Smith
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This file is part of pmbootstrap.
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pmbootstrap is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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pmbootstrap is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with pmbootstrap. If not, see <http://www.gnu.org/licenses/>.
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"""
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import os
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import logging
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import pmb.chroot
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import pmb.config
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import pmb.install.losetup
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def partitions_mount(args):
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"""
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Mount blockdevices of partitions inside native chroot
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"""
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prefix = args.sdcard
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if not args.sdcard:
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img_path = "/home/user/rootfs/" + args.device + ".img"
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prefix = pmb.install.losetup.device_by_back_file(args, img_path)
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partition_prefix = None
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for symbol in ["p", ""]:
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if os.path.exists(prefix + symbol + "1"):
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partition_prefix = symbol
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if partition_prefix is None:
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raise RuntimeError("Unable to find the partition prefix,"
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" expected the first partition of " +
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prefix + " to be located at " + prefix +
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"1 or " + prefix + "p1!")
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for i in [1, 2]:
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source = prefix + partition_prefix + str(i)
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target = args.work + "/chroot_native/dev/installp" + str(i)
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pmb.helpers.mount.bind_blockdevice(args, source, target)
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def partition(args, size_boot):
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"""
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Partition /dev/install and create /dev/install{p1,p2}
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size_boot: size of the boot partition in bytes.
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"""
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# Convert to MB and print info
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mb_boot = str(round(size_boot / 1024 / 1024)) + "M"
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logging.info("(native) partition /dev/install (boot: " + mb_boot +
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", root: the rest)")
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# Actual partitioning with 'parted'. Using check=False, because parted
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# sometimes "fails to inform the kernel". In case it really failed with
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# partitioning, the follow-up mounting/formatting will not work, so it
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# will stop there (see #463).
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commands = [
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["mktable", "msdos"],
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["mkpart", "primary", "ext2", "2048s", mb_boot],
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["mkpart", "primary", mb_boot, "100%"],
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["set", "1", "boot", "on"]
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]
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for command in commands:
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pmb.chroot.root(args, ["parted", "-s", "/dev/install"] +
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command, check=False)
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# Mount new partitions
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partitions_mount(args)
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