63 lines
1.3 KiB
Bash
63 lines
1.3 KiB
Bash
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#! /bin/bash
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base_initrd=dist/initrd
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flavor=dhcp
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dir=tmp/$flavor-initrd
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dist=dist/$flavor
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uki=$dist/bootx64.efi
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linux_v=6.18.34
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set -ex
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mkdir -p tmp/dl $dist
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linux=tmp/dl/linux-$linux_v
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modules=tmp/dl/modules-$linux_v
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[ -e $linux ] || curl -o $linux https://dkl.novit.io/dist/kernels/6.18.34
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[ -e $modules ] || curl -o $modules https://dkl.novit.io/dist/layers/modules/6.18.34 # TODO .erofs
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rm -fr $dir
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mkdir $dir
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cpio --quiet --extract --file $base_initrd --directory $dir
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cp -rv $flavor/. $dir
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cp $modules $dir/modules.fs
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(cd $dir && find * |cpio --create -H newc -R 0:0) >$dir.cpio
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if cpio -tF $dir.cpio 2>&1 |grep bytes.of.junk; then echo "bad cpio archive"; exit 1; fi
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zstd -12 -T0 -vf $dir.cpio &&
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mv $dir.cpio.zst $dist/initrd
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cp $linux $dist/vmlinuz
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ukify build --output $uki --os-release "Direktil DHCP" \
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--linux $linux --initrd $dist/initrd --cmdline "console=tty0 console=ttyS0,115200"
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MB=$(( 2**20 ))
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sz=$(( ( $(stat -c %s $uki) + MB ) / MB + 2 ))
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efi=$dist/efi.img
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if [ -e $efi ]; then rm $efi; fi
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truncate -s ${sz}M $efi
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sgdisk -n 1:2048:0 -t 1:ef00 -c 1:"EFI System" $efi
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offset=$(( 2048 * 512 ))
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export MTOOLSRC=$(mktemp)
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trap "rm -f $MTOOLSRC" exit
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echo "drive e: file=\"$efi\" offset=$offset" >$MTOOLSRC
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args="-i $efi@@$offset"
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mformat -F e:
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mmd e:EFI e:EFI/BOOT
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mcopy $uki e:EFI/BOOT/BOOTX64.EFI
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