75 lines
3.1 KiB
Bash
75 lines
3.1 KiB
Bash
#!/bin/sh
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# emmc_deploy.sh -- write a Zynq-7000 production system (FAT boot + ext4 root) to
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# eMMC/SD from the QSPI rescue Linux. TEMPLATE from the release_zynq7k skill:
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# fill the variables below from the board's evidence (fdisk -l / /proc/partitions,
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# the project's proven deploy script), then test it once on the board and say so
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# in the README until that happened.
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#
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# sh emmc_deploy.sh <PC_IP> [--partition]
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#
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# The PC serves, by TFTP: every file in BOOT_FILES, ROOTFS and SUMS.
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set -e
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# ---------------------------------------------------------------- board profile
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DEV=/dev/mmcblk1 # verified device node (NOT inferred from the name)
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P1_START=16 # DOS partition plan, sectors (only used with --partition)
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P1_SIZE=250032
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P1_TYPE=b # b = FAT32
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P2_START=250048 # p2 runs to the end of the device
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BOOT_FILES="image.ub system_top.bin" # copied to p1 (FAT); keep FAT capacity in mind
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ROOTFS=rootfs.tar.gz # extracted to p2 (ext4)
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SUMS=EMMC_SHA256SUMS # sha256sum -c format for BOOT_FILES + ROOTFS
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CHECK_IN_ROOT="usr/bin/app etc/init.d/app-init" # read back after writing
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# ------------------------------------------------------------------------------
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PC=${1:?usage: emmc_deploy.sh <PC_IP> [--partition]}
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W=/tmp/e2
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if grep " / " /proc/mounts | grep -q "$(basename $DEV)"; then
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echo "running from $DEV: boot the QSPI rescue system"; exit 1
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fi
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[ -b $DEV ] || { echo "$DEV missing"; exit 1; }
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cat /sys/block/$(basename $DEV)/device/type /sys/block/$(basename $DEV)/device/name /sys/block/$(basename $DEV)/size
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mkdir -p $W && cd $W
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for f in $SUMS $BOOT_FILES $ROOTFS; do
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rm -f $f; tftp -g -r $f $PC
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done
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sha256sum -c $SUMS # a failed transfer stops here, before any write
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echo SHA_OK
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[ -f /etc/udev/rules.d/automount.rules ] && mv /etc/udev/rules.d/automount.rules /tmp/automount.rules.off && udevadm control --reload-rules || true
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umount ${DEV}p1 2>/dev/null || true
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umount ${DEV}p2 2>/dev/null || true
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if grep -q "$(basename $DEV)" /proc/mounts; then echo "$DEV still mounted"; exit 1; fi
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if [ "$2" = "--partition" ]; then
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printf 'label: dos\nstart=%s, size=%s, type=%s\nstart=%s, type=83\n' \
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$P1_START $P1_SIZE $P1_TYPE $P2_START | sfdisk $DEV
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sleep 1
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fi
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[ -b ${DEV}p1 ] && [ -b ${DEV}p2 ] || { echo "no p1/p2 on $DEV (use --partition)"; exit 1; }
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mkfs.vfat -F 32 -n BOOT ${DEV}p1
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mkfs.ext4 -F -q -L rootfs ${DEV}p2
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mkdir -p /mnt/b /mnt/r
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mount -t vfat ${DEV}p1 /mnt/b
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mount -t ext4 ${DEV}p2 /mnt/r
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for f in $BOOT_FILES; do cp $W/$f /mnt/b/$f; done
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tar xzf $W/$ROOTFS -C /mnt/r
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sync
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cd /
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umount /mnt/b
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umount /mnt/r
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sync
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fsck.vfat -n ${DEV}p1 | tail -n 1
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e2fsck -fn ${DEV}p2 | tail -n 1
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echo 3 > /proc/sys/vm/drop_caches
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mount -o ro -t vfat ${DEV}p1 /mnt/b
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mount -o ro -t ext4 ${DEV}p2 /mnt/r
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for f in $BOOT_FILES; do sha256sum /mnt/b/$f; done
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for f in $CHECK_IN_ROOT; do sha256sum /mnt/r/$f; done
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umount /mnt/b
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umount /mnt/r
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[ -f /tmp/automount.rules.off ] && mv /tmp/automount.rules.off /etc/udev/rules.d/automount.rules || true
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echo "EMMC_DEPLOY_DONE -- compare the hashes above with 00_SHA256SUMS, then power-cycle"
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