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annotate root-image.sh @ 1398:b74d36876c0a

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Replace read_arch_dir with load_target, which understands that sources/targets/$TARGET can be a file or a directory.
author Rob Landley <rob@landley.net>
date Sun, 26 Jun 2011 17:44:02 -0500
parents 2059add65b8c
children f1d2afdf2034
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7eabfa815c90 Split up system-image.sh into root-image.sh, linux-kernel.sh, and system-image.sh. Rename CROSS_HOST_ARCH to CROSS_COMPILER_HOST.
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1 #!/bin/bash
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7eabfa815c90 Split up system-image.sh into root-image.sh, linux-kernel.sh, and system-image.sh. Rename CROSS_HOST_ARCH to CROSS_COMPILER_HOST.
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3 # Package a root filesystem directory into a filesystem image file
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4
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5 source sources/include.sh || exit 1
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6
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b74d36876c0a Replace read_arch_dir with load_target, which understands that sources/targets/$TARGET can be a file or a directory.
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7 # Parse sources/targets/$1
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8
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9 load_target "$1"
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7eabfa815c90 Split up system-image.sh into root-image.sh, linux-kernel.sh, and system-image.sh. Rename CROSS_HOST_ARCH to CROSS_COMPILER_HOST.
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11 # Which directory do we package up?
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13 if [ -z "$NATIVE_ROOT" ]
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14 then
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15 [ -z "$NO_NATIVE_COMPILER" ] &&
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16 NATIVE_ROOT="$BUILD/root-filesystem-$ARCH"
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18 [ -e "$NATIVE_ROOT" ] ||
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19 NATIVE_ROOT="$BUILD/simple-root-filesystem-$ARCH"
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20 fi
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22 if [ ! -d "$NATIVE_ROOT" ]
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23 then
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24 [ -z "$FAIL_QUIET" ] && echo No "$NATIVE_ROOT" >&2
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25 exit 1
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26 fi
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28 [ -z "$SYSIMAGE_TYPE" ] && SYSIMAGE_TYPE=squashfs
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30 echo "Generating $SYSIMAGE_TYPE root filesystem from $NATIVE_ROOT."
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31
7eabfa815c90 Split up system-image.sh into root-image.sh, linux-kernel.sh, and system-image.sh. Rename CROSS_HOST_ARCH to CROSS_COMPILER_HOST.
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32 # Embed an initramfs image in the kernel?
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33
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34 if [ "$SYSIMAGE_TYPE" == "initramfs" ]
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35 then
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2059add65b8c Fix initramfs packaging (never fixed gen_init_cpio.c into sources/toys, best to use the copy out of the Linux source anyway).
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36 # Borrow gen_init_cpio.c out of package cache copy of Linux source
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37 extract_package linux &&
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38 $CC "$SRCTREE/$PACKAGE/usr/gen_init_cpio.c" -o my_gen_init_cpio || dienow
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39 ./my_gen_init_cpio <(
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40 "$SOURCES"/toys/gen_initramfs_list.sh "$NATIVE_ROOT" || dienow
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41 [ ! -e "$NATIVE_ROOT"/init ] &&
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42 echo "slink /init /sbin/init.sh 755 0 0"
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43 [ ! -d "$NATIVE_ROOT"/dev ] && echo "dir /dev 755 0 0"
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44 echo "nod /dev/console 660 0 0 c 5 1"
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45 ) > "$STAGE_DIR/initramfs_data.cpio" || dienow
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46 echo Initramfs generated.
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47
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48 elif [ "$SYSIMAGE_TYPE" == "ext2" ]
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49 then
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50 # Generate a 64 megabyte ext2 filesystem image from the $NATIVE_ROOT
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51 # directory, with a temporary file defining the /dev nodes for the new
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52 # filesystem.
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53
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54 [ -z "$SYSIMAGE_HDA_MEGS" ] && SYSIMAGE_HDA_MEGS=64
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55
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56 echo "/dev d 755 0 0 - - - - -" > "$WORK/devs" &&
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57 echo "/dev/console c 640 0 0 5 1 0 0 -" >> "$WORK/devs" &&
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58
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59 # Produce a filesystem with the currently used space plus 20% for filesystem
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60 # overhead, which should always be big enough.
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61
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62 BLOCKS=$[1024*(($(du -m -s "$NATIVE_ROOT" | awk '{print $1}')*12)/10)]
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63 [ $BLOCKS -lt 4096 ] && BLOCKS=4096
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64
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65 genext2fs -z -D "$WORK/devs" -d "$NATIVE_ROOT" -b $BLOCKS -i 1024 \
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66 "$STAGE_DIR/hda.ext2" &&
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67 rm "$WORK/devs" || dienow
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68
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69 # Extend image size to HDA_MEGS if necessary, keeping it sparse. (Feeding
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70 # a larger -b size to genext2fs is insanely slow, and not particularly
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71 # sparse.)
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72
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73 echo "$(stat -c %s "$STAGE_DIR/$IMAGE") -lt $SYSIMAGE_HDA_MEGS"
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74
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75 if [ ! -z "$SYSIMAGE_HDA_MEGS" ] &&
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76 [ $((`stat -c %s "$STAGE_DIR/$IMAGE"` / (1024*1024) )) -lt "$SYSIMAGE_HDA_MEGS" ]
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77 then
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78 echo resizing image to $SYSIMAGE_HDA_MEGS
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79 dd if=/dev/zero of="$STAGE_DIR/$IMAGE" bs=1k count=1 seek=$[1024*1024-1] &&
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80 resize2fs "$STAGE_DIR/$IMAGE" ${SYSIMAGE_HDA_MEGS}M || dienow
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81 echo resize complete
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82 fi
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83
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84 elif [ "$SYSIMAGE_TYPE" == "squashfs" ]
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85 then
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86 mksquashfs "${NATIVE_ROOT}" "$STAGE_DIR/hda.sqf" -noappend -all-root \
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87 ${FORK:+-no-progress} -p "/dev d 755 0 0" \
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88 -p "/dev/console c 666 0 0 5 1" || dienow
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Rob Landley <rob@landley.net>
parents:
diff changeset
89 else
7eabfa815c90 Split up system-image.sh into root-image.sh, linux-kernel.sh, and system-image.sh. Rename CROSS_HOST_ARCH to CROSS_COMPILER_HOST.
Rob Landley <rob@landley.net>
parents:
diff changeset
90 echo "Unknown image type $SYSIMAGE_TYPE" >&2
7eabfa815c90 Split up system-image.sh into root-image.sh, linux-kernel.sh, and system-image.sh. Rename CROSS_HOST_ARCH to CROSS_COMPILER_HOST.
Rob Landley <rob@landley.net>
parents:
diff changeset
91 dienow
7eabfa815c90 Split up system-image.sh into root-image.sh, linux-kernel.sh, and system-image.sh. Rename CROSS_HOST_ARCH to CROSS_COMPILER_HOST.
Rob Landley <rob@landley.net>
parents:
diff changeset
92 fi
7eabfa815c90 Split up system-image.sh into root-image.sh, linux-kernel.sh, and system-image.sh. Rename CROSS_HOST_ARCH to CROSS_COMPILER_HOST.
Rob Landley <rob@landley.net>
parents:
diff changeset
93
7eabfa815c90 Split up system-image.sh into root-image.sh, linux-kernel.sh, and system-image.sh. Rename CROSS_HOST_ARCH to CROSS_COMPILER_HOST.
Rob Landley <rob@landley.net>
parents:
diff changeset
94 create_stage_tarball
7eabfa815c90 Split up system-image.sh into root-image.sh, linux-kernel.sh, and system-image.sh. Rename CROSS_HOST_ARCH to CROSS_COMPILER_HOST.
Rob Landley <rob@landley.net>
parents:
diff changeset
95
7eabfa815c90 Split up system-image.sh into root-image.sh, linux-kernel.sh, and system-image.sh. Rename CROSS_HOST_ARCH to CROSS_COMPILER_HOST.
Rob Landley <rob@landley.net>
parents:
diff changeset
96 echo Image generation complete.