51 lines
1.2 KiB
Bash
51 lines
1.2 KiB
Bash
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#!/bin/sh
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echo "PREINIT: Start"
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PATH=/sbin:/bin:/usr/sbin:/usr/bin
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mount -o remount,rw /
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mkdir -p /proc
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mkdir -p /sys
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mkdir -p /run
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mkdir -p /var/run
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mount -t proc proc /proc
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mount -t sysfs sysfs /sys
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[ -z "$CONSOLE" ] && CONSOLE="/dev/console"
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BASE_OVERLAY_ETC_DIR={OVERLAYFS_ETC_MOUNT_POINT}/overlay-etc
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UPPER_DIR=$BASE_OVERLAY_ETC_DIR/upper
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WORK_DIR=$BASE_OVERLAY_ETC_DIR/work
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LOWER_DIR=$BASE_OVERLAY_ETC_DIR/lower
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mkdir -p {OVERLAYFS_ETC_MOUNT_POINT}
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if mount -n -t {OVERLAYFS_ETC_FSTYPE} \
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-o {OVERLAYFS_ETC_MOUNT_OPTIONS} \
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{OVERLAYFS_ETC_DEVICE} {OVERLAYFS_ETC_MOUNT_POINT}
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then
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mkdir -p $UPPER_DIR
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mkdir -p $WORK_DIR
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if {OVERLAYFS_ETC_EXPOSE_LOWER}; then
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mkdir -p $LOWER_DIR
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# provide read-only access to original /etc content
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mount -o bind,ro /etc $LOWER_DIR
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fi
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mount -n -t overlay \
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-o upperdir=$UPPER_DIR \
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-o lowerdir=/etc \
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-o workdir=$WORK_DIR \
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-o index=off,xino=off,redirect_dir=off,metacopy=off \
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$UPPER_DIR /etc || \
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echo "PREINIT: Mounting etc-overlay failed!"
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else
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echo "PREINIT: Mounting </data> failed!"
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fi
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echo "PREINIT: done; starting </sbin/init>"
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exec {SBIN_INIT_NAME}
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