30354fe40e
expand-overlay now splits eMMC into: - p3 (3GB): overlay filesystem (system + configs) - p4 (~54GB): ext4 data partition -> /mnt/data/docker Docker data-root auto-configured to /mnt/data/docker on first boot.
60 lines
1.6 KiB
Bash
60 lines
1.6 KiB
Bash
#!/bin/sh /etc/rc.common
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# /etc/init.d/expand-overlay
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# Stage 2: Resize p3 filesystem, format & mount p4, configure Docker.
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# Runs at START=99, after overlay is mounted and most services started.
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START=99
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boot() {
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local flag="/etc/resize2fs.done"
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local p4flag="/etc/data-partition.done"
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# ---- Stage 2a: Resize p3 filesystem ----
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if [ ! -f "$flag" ]; then
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# Wait for stage1 (uci-defaults) to finish
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local i=0
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while [ ! -f "/etc/expand-overlay.done" ] && [ $i -lt 30 ]; do
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sleep 1
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i=$((i + 1))
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done
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if [ -f "/etc/expand-overlay.done" ]; then
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resize2fs /dev/mmcblk2p3 2>/dev/null
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touch "$flag"
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fi
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fi
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# ---- Stage 2b: Format and mount p4 data partition ----
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if [ ! -f "$p4flag" ]; then
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# Check if p4 is marked with RESET (needs formatting)
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if dd if=/dev/mmcblk2p4 bs=5 count=1 2>/dev/null | grep -qF "RESET"; then
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# Format p4 as ext4
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mkfs.ext4 -F -L data /dev/mmcblk2p4 2>/dev/null
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fi
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# Mount p4 to /mnt/data
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mkdir -p /mnt/data
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mount /dev/mmcblk2p4 /mnt/data 2>/dev/null
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# Create Docker directory on data partition
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mkdir -p /mnt/data/docker
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# Point Docker to data partition
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uci -q set dockerd.globals.data_root="/mnt/data/docker"
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uci -q commit dockerd
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# Add to fstab for auto-mount on future boots
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if ! grep -q "mmcblk2p4" /etc/config/fstab 2>/dev/null; then
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block detect > /dev/null 2>&1
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# block detect creates entries, we update the last one
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local idx=$(( $(uci show fstab | grep -c "fstab.@mount") - 1 ))
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[ "$idx" -ge 0 ] && uci -q set fstab.@mount[$idx].target="/mnt/data"
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uci -q commit fstab
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fi
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touch "$p4flag"
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fi
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return 0
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}
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