30 lines
1023 B
Bash
30 lines
1023 B
Bash
#!/bin/sh
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# - if /dev is not mounted - mount as a devtmpfs (CONFIG_DEVTMPFS=y)
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# - if /dev is mounted (e.g. due to handover from initramfs or
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# CONFIG_DEVTMPFS_MOUNT=y), remount with specific options
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# - some video drivers require exec access in /dev, thus it's set here
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# - for completness, we add few sanity limits (2k non-empty files, 16k inodes)
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UDEVOPTS="exec,nosuid,noatime,mode=0755,nr_blocks=2048,nr_inodes=16384"
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if /bin/mountpoint -q /dev ; then
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/bin/mount -n -o remount,${UDEVOPTS} dev /dev
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else
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/bin/mount -n -t devtmpfs -o ${UDEVOPTS} dev /dev
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fi
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# mount /run directory
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/bin/mount -n -t tmpfs -o mode=0755,nosuid,nodev,exec tmpfs /run
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# copy devcies from /lib/udev/devices
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cp -ar /lib/udev/devices/* /dev
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# launch udev daemon, make sure it's not running first
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test -z "$(/bin/pidof -s udevd)" && /sbin/udevd --daemon
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# coldplug devices and wait for the queue to be processed
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/sbin/udevadm trigger --type=subsystems --action=add
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/sbin/udevadm trigger --type=devices --action=add
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/sbin/udevadm settle
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