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The use case for this is to set the kernel partition as the
EFI system partition. Versions of U-Boot with the
EFI boot manager (eficonfig and efidebug commands) will
store their boot order data on the ESP.
Signed-off-by: Mathew McBride <matt@traverse.com.au>
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Allow passing in an optional offset (PARTOFFSET) for the first partition.
If not specified this will default to 256K (512 blocks) as it has before.
For example if you want to start partition data at a 16M offset instead
of 256K, specify 'PARTOFFSET=16M'.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
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mtools recursive copy (mcopy -s ...) is using READDIR(3) to iterate
over the directory entries, hence they end up in the FAT filesystem in
traversal order which breaks reproducibility (rather than being added
to the FAT filesystem in a reproducible order). Implement recursive
copy in gen_image_generic.sh in Shell code instead, as in that way we
can force files to be copied in reproducible order.
Fixes: aece8f5ae8 ("scripts/gen_image_generic.sh: generate reproducible EFI filesystem")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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Generate FAT filesystem for EFI boot in a reproducible way:
* use '--invariant' option of mkfs.fat
* set timestamps of all files to SOURCE_DATE_EPOCH
* make sure files are ordered locale-independent
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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Set fixed timestamp for kernel other files in /boot filesystem.
This should help making x86 *combined* images reproducible.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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Fixes following shellcheck warnings:
In scripts/gen_image_generic.sh line 20:
cyl=$(( (KERNELSIZE + ROOTFSSIZE) * 1024 * 1024 / (head * sect * 512)))
^-^ SC2034: cyl appears unused. Verify use (or export if used externally).
--
In scripts/gen_image_generic.sh line 34:
[ -n "$PADDING" ] && dd if=/dev/zero of="$OUTPUT" bs=512 seek="$(($ROOTFSOFFSET + $ROOTFSSIZE))" conv=notrunc count="$sect"
^-----------^ SC2004: $/${} is unnecessary on arithmetic variables.
--
In scripts/gen_image_generic.sh line 35:
mkfs.fat -n kernel -C "$OUTPUT.kernel" -S 512 "$(($KERNELSIZE / 1024))"
^---------^ SC2004: $/${} is unnecessary on arithmetic variables.
Signed-off-by: Petr Štetiar <ynezz@true.cz>
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This has nothing bash specific.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
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-o is not well defined.
Found with shellcheck.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
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Add EFI platform bootable images for x86 platforms. These images can
also boot from legacy BIOS platform.
EFI System Partition need to be fat12/fat16/fat32 (not need to load
filesystem drivers), so the first partition of EFI images are not ext4
filesystem any more.
GPT partition table has an alternate partition table, we did not
generate it. This may cause problems when use these images as qemu disk
(kernel can not find rootfs), we pad enough sectors will be ok.
Signed-off-by: 李国 <uxgood.org@gmail.com>
[part_magic_* refactoring, removed genisoimage checks]
Signed-off-by: Petr Štetiar <ynezz@true.cz>
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This replaces deprecated backticks by more versatile $(...) syntax.
Found with shellcheck.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
[adjust commit title and message]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
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Fixes shellcheck warning:
SC2004: $/${} is unnecessary on arithmetic variables.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
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UUID of ext4 volumes generated by make_ext4fs are determined by volume
label and it will all be 57f8f4bc-abf4-655f-bf67-946fc0f9f25b when label
is empty
Labeling them does not make them unique but tools like block command
from fstools have a better chance differentiating them
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
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The script always exits with value 0, even if some of the commands fail.
This can potentially create broken, unbootable images, e.g. when
make_ext4fs fails due to TARGET_KERNEL_PARTSIZE being too small for the
kernel. Avoid this by failing the script when any command fails.
Acked-by: Jo-Philipp Wich <jo@mein.io>
Acked-by: Petr Štetiar <ynezz@true.cz>
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
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It's not used since commit 816a9b30f683b8376423ff029d40e0e4a2701026.
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
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The script can also be useful for other targets.
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
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