27 lines
802 B
Bash
27 lines
802 B
Bash
#!/bin/sh
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# Copyright (C) 2010 Vertical Communications
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# This is free software, licensed under the GNU General Public License v2.
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# See /LICENSE for more information.
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# Determine if we are requested to mount external root
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external_root_pivot() {
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check_skip || [ "$pi_extroot_mount_success" != "true" ] || {
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echo "switching to external rootfs"
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if [ "$ER_OVERLAY_ROM" = "/overlay" ]; then
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if [ "$ER_IS_SQUASHFS" = "true" ]; then
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umount /tmp/overlay
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fi
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mount -o remount,ro / && fopivot /overlay /rom && pi_mount_skip_next=true
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elif [ "$ER_OVERLAY_ROM" = "/rom" ]; then
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if [ "$ER_IS_SQUASHFS" = "true" ]; then
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umount /tmp/overlay
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fi
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mount -o remount,ro / && pivot_rom /rom /rom && pi_mount_skip_next=true
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fi
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}
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}
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boot_hook_add preinit_mount_root external_root_pivot
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