Wiki source code of Openwrt Boot Notes
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3 | = initramfs-kernel = | ||
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5 | kernel runs /init. | ||
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7 | /init is a script which sets INITRAMFS=1 and then execs /sbin/init. | ||
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9 | /sbin/init is ELF comes from procd package. What it does: | ||
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11 | * early: | ||
12 | ** mount /proc, /sysfs, and create /dev nodes, create /tmp subdirs etc | ||
13 | ** set PATH | ||
14 | * kmodloader in subprocess | ||
15 | * preinit | ||
16 | ** plugd in subprocess (seem to deal with firmware) | ||
17 | ** /etc/preinit in subprocess | ||
18 | * when /etc/preinit is done then it execs and replaces itself with the "real" /sbin/procd | ||
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