bj/torch-pi-gen
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Update ROOT_MARGIN

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This commit is contained in:
Serge Schneider 2020-01-24 12:48:57 +00:00
parent 24bb01dec2
commit 0a6624b26d
4 changed files with 4 additions and 3 deletions
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2
Dockerfile
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@ -6,7 +6,7 @@ RUN apt-get -y update && \
apt-get -y install \
git vim parted \
quilt coreutils qemu-user-static debootstrap zerofree zip dosfstools \
bsdtar libcap2-bin rsync grep udev xz-utils curl xxd file kmod\
bsdtar libcap2-bin rsync grep udev xz-utils curl xxd file kmod bc\
&& rm -rf /var/lib/apt/lists/*
COPY . /pi-gen/

2
README.md
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@ -14,7 +14,7 @@ To install the required dependencies for pi-gen you should run:
```bash
apt-get install coreutils quilt parted qemu-user-static debootstrap zerofree zip \
dosfstools bsdtar libcap2-bin grep rsync xz-utils file git curl
dosfstools bsdtar libcap2-bin grep rsync xz-utils file git curl bc
```
The file `depends` contains a list of tools needed. The format of this

1
depends
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@ -16,3 +16,4 @@ xxd
file
git
lsmod:kmod
bc

2
export-image/prerun.sh
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@ -18,7 +18,7 @@ ALIGN="$((4 * 1024 * 1024))"
# some overhead (since actual space usage is usually rounded up to the
# filesystem block size) and gives some free space on the resulting
# image.
ROOT_MARGIN=$((800*1024*1024))
ROOT_MARGIN="$(echo "($ROOT_SIZE * 0.2 + 200 * 1024 * 1024) / 1" | bc)"
BOOT_PART_START=$((ALIGN))
BOOT_PART_SIZE=$(((BOOT_SIZE + ALIGN - 1) / ALIGN * ALIGN))