ci-test/initramfs-zstd.yaml

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# Initramfs compression with zstd
packages:
- zstd
postprocess:
- |
#!/usr/bin/env bash
set -xeuo pipefail
install -dm 0755 -o 0 -g 0 /usr/lib/dracut/dracut.conf.d
- |
#!/usr/bin/env bash
set -xeuo pipefail
cat > /usr/lib/dracut/dracut.conf.d/20-atomic-zstd.conf << 'EOF'
# Compress initrd with zstd. dracut defaults to -15, but we want the
# maximum reasonable compression, so override the command line to use
# dracut's defaults along with -19.
compress="zstd -19 -q -T0"
EOF