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Overlay: Add option for /persistent directory to survive reboots #135

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Overlay: Add option for /persistent directory to survive reboots #135

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7 changes: 7 additions & 0 deletions raspi-config
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Original file line number Diff line number Diff line change
Expand Up @@ -2181,6 +2181,13 @@ local_mount_root()
mount -t overlay \
-olowerdir=/lower,upperdir=/upper/data,workdir=/upper/work \
overlay ${rootmnt}

# if /persistent exists, let it survive reboots
# NOTE: user must opt-in by creating /persistent BEFORE enabling overlay
if [ -e /lower/persistent ]; then
mount --bind /lower/persistent ${rootmnt}/persistent
mount -o remount,rw ${rootmnt}/persistent
fi
}
EOF

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