18 lines
908 B
Bash
18 lines
908 B
Bash
#!/bin/sh
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# Bring up the kernel virtual filesystems and runtime dirs before other
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# services start. Safe to re-run: each mount is guarded by mountpoint checks.
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set -eu
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export PATH=/usr/bin:/usr/sbin:/bin:/sbin
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mountpoint -q /proc || mount -t proc proc /proc
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mountpoint -q /sys || mount -t sysfs sysfs /sys
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mountpoint -q /dev || mount -t devtmpfs devtmpfs /dev
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mkdir -p /dev/pts /dev/shm
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mountpoint -q /dev/pts || mount -t devpts devpts /dev/pts
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mountpoint -q /dev/shm || mount -t tmpfs tmpfs /dev/shm
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# NOTE: /run is intentionally NOT remounted here. dinit (PID 1) binds its
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# control socket under /run before this script runs; on the all-RAM initramfs
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# boot /run is already writable, and a fresh tmpfs mount would hide that socket.
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# (A disk-rooted system should instead mount /run before starting dinit.)
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mkdir -p /run/user /run/udev
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