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880c1f0336
Due to filesystem write caching the old configuration data could stay out of flash for a long time during a first boot after the sysupgrade. Power loss during this period could damage the overlay data and even make device inaccessable via the network. Fix this by syncing data to a flash as soon as the previous configuration will be unpacked after the sysupgrade. Also sync the FS state after the sysupgrade.tgz archive removing to prevent duplicative extraction of a previous configuration. Tested with AMD Geode based board. Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
18 lines
376 B
Bash
18 lines
376 B
Bash
#!/bin/sh
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# Copyright (C) 2006 OpenWrt.org
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# Copyright (C) 2010 Vertical Communications
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do_mount_root() {
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mount_root
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boot_run_hook preinit_mount_root
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[ -f /sysupgrade.tgz ] && {
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echo "- config restore -"
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cd /
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tar xzf /sysupgrade.tgz
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# Prevent configuration corruption on a power loss
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sync
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}
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}
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[ "$INITRAMFS" = "1" ] || boot_hook_add preinit_main do_mount_root
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