Wiki source code of Openwrt Boot Notes
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1.1 | 1 | |
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3 | = initramfs-kernel = | ||
4 | |||
5 | kernel runs /init. | ||
6 | |||
7 | /init is a script which sets INITRAMFS=1 and then execs /sbin/init. | ||
8 | |||
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2.1 | 9 | /sbin/init is ELF comes from procd package. What it does (as pid=1): |
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1.1 | 10 | |
11 | * early: | ||
12 | ** mount /proc, /sysfs, and create /dev nodes, create /tmp subdirs etc | ||
13 | ** set PATH | ||
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3.1 | 14 | * kmodloader in subprocess (waits until done) |
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1.1 | 15 | * preinit |
16 | ** plugd in subprocess (seem to deal with firmware) | ||
17 | ** /etc/preinit in subprocess | ||
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2.1 | 18 | * when /etc/preinit is done then it execvp the "real" /sbin/procd |
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1.1 | 19 | |
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