paul@6 | 1 | #!/bin/sh |
paul@6 | 2 | |
paul@9 | 3 | # Support partitioning of a device using sfdisk. This program accepts a |
paul@9 | 4 | # partitioning summary on standard input. |
paul@6 | 5 | # |
paul@6 | 6 | # Important tasks: |
paul@6 | 7 | # |
paul@6 | 8 | # Erase bootloader blocks. |
paul@6 | 9 | # Perform partitioning using sfdisk. |
paul@15 | 10 | # |
paul@15 | 11 | # Copyright (C) 2019 Paul Boddie <paul@boddie.org.uk> |
paul@15 | 12 | # |
paul@15 | 13 | # This program is free software; you can redistribute it and/or modify it under |
paul@15 | 14 | # the terms of the GNU General Public License as published by the Free Software |
paul@15 | 15 | # Foundation; either version 3 of the License, or (at your option) any later |
paul@15 | 16 | # version. |
paul@15 | 17 | # |
paul@15 | 18 | # This program is distributed in the hope that it will be useful, but WITHOUT |
paul@15 | 19 | # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
paul@15 | 20 | # FOR A PARTICULAR PURPOSE. See the GNU General Public License for more |
paul@15 | 21 | # details. |
paul@15 | 22 | # |
paul@15 | 23 | # You should have received a copy of the GNU General Public License along with |
paul@15 | 24 | # this program. If not, see <http://www.gnu.org/licenses/>. |
paul@6 | 25 | |
paul@6 | 26 | PROGNAME=`basename "$0"` |
paul@6 | 27 | THISDIR=`dirname "$0"` |
paul@6 | 28 | |
paul@7 | 29 | COMMON="$THISDIR/makesd-common" |
paul@6 | 30 | PARTTABLE="$THISDIR/makesd-partition-table" |
paul@6 | 31 | SFDISK="/sbin/sfdisk" |
paul@6 | 32 | |
paul@7 | 33 | . "$COMMON" |
paul@7 | 34 | |
paul@6 | 35 | |
paul@6 | 36 | |
paul@6 | 37 | # Test sfdisk behaviour and obtain useful information. |
paul@6 | 38 | |
paul@6 | 39 | init_sfdisk() |
paul@6 | 40 | { |
paul@6 | 41 | if "$SFDISK" -uS -s "$1" > /dev/null 2>&1 ; then |
paul@6 | 42 | SFDISK_OPTIONS="-uS -L" |
paul@6 | 43 | else |
paul@6 | 44 | SFDISK_OPTIONS= |
paul@6 | 45 | fi |
paul@6 | 46 | } |
paul@6 | 47 | |
paul@6 | 48 | |
paul@6 | 49 | |
paul@13 | 50 | # Emit the help message if requested. |
paul@13 | 51 | |
paul@13 | 52 | if [ "$1" = '--help' ] ; then |
paul@13 | 53 | cat 1>&2 <<EOF |
paul@13 | 54 | Usage: $PROGNAME [ --align ] |
paul@13 | 55 | |
paul@13 | 56 | Partition a device according to a partitioning summary supplied via standard |
paul@13 | 57 | input. This summary is passed on to the partition table generator: |
paul@13 | 58 | |
paul@13 | 59 | $PARTTABLE |
paul@13 | 60 | |
paul@13 | 61 | $(align_cylinder_description) |
paul@13 | 62 | EOF |
paul@13 | 63 | exit 0 |
paul@13 | 64 | fi |
paul@13 | 65 | |
paul@6 | 66 | # Obtain details of the selected device. |
paul@6 | 67 | |
paul@7 | 68 | check_device |
paul@6 | 69 | |
paul@11 | 70 | # Test for the cylinder alignment option. |
paul@11 | 71 | |
paul@11 | 72 | if test_align_cylinder $* ; then shift 1 ; fi |
paul@11 | 73 | |
paul@6 | 74 | # Initialise sfdisk usage. |
paul@6 | 75 | |
paul@6 | 76 | init_sfdisk "$DEV" |
paul@6 | 77 | |
paul@9 | 78 | # Convert the partitioning summary into a partition table description. |
paul@6 | 79 | # Present the table to sfdisk. |
paul@6 | 80 | |
paul@11 | 81 | "$PARTTABLE" $ALIGN_CYLINDER \ |
paul@6 | 82 | | "$SFDISK" $SFDISK_OPTIONS "$DEV" |