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Linux distros changed /var/run and /var/lock to reside on an tmpfs in
/run a long time ago, and buildroot seems to agree by providing this
tmpfs on all supported init systems.
Packages on the other hand are currently free to either use /var/run
or /run, and similarly using /var/lock should be identical to the
replacement /run/lock.
This series aims to ensure that *if* /var/lock is needed, then
it will be a symlink to /run/lock. Allowing packages to continue
working and allowing them to migrate to using /run/lock.
If all relevant packages are fixed,
the compatibility symlinks in /var can be dropped.
Status before this patch:
* Systemd
/run will be mounted by PID1, /var/run will be recreated by
/usr/lib/tmpfiles.d/var.conf.
Creating /run/lock/subsys and the compatibility symlink is handled
in /usr/lib/tmpfiles.d/legacy.conf.
But this is *currently not installed* by Buildroot, see [1].
* OpenRC
Seems to check for existence of a /run directory and does all
necessary setup.
* SysV
/var/lock is currently a symlink to /tmp.
* Busybox
Same as sysv (Buildroot uses the sysv skeleton)
Note that we create /run/lock/subsys, so sysv scrips could expect this
directory to exist. Apart from simplifying scripts, creating the dir
early as root adds some security.
Signed-off-by: Norbert Lange <nolange79@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
33 lines
1.0 KiB
Plaintext
33 lines
1.0 KiB
Plaintext
# /etc/inittab
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#
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# This inittab is a basic inittab sample for sysvinit, which mimics
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# Buildroot's default inittab for BusyBox.
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id:3:initdefault:
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si0::sysinit:/bin/mount -t proc proc /proc
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si1::sysinit:/bin/mount -o remount,rw /
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si2::sysinit:/bin/mkdir -p /dev/pts /dev/shm
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si3::sysinit:/bin/mount -a
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si4::sysinit:/bin/mkdir -p /run/lock/subsys
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si5::sysinit:/sbin/swapon -a
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si6::sysinit:/bin/ln -sf /proc/self/fd /dev/fd 2>/dev/null
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si7::sysinit:/bin/ln -sf /proc/self/fd/0 /dev/stdin 2>/dev/null
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si8::sysinit:/bin/ln -sf /proc/self/fd/1 /dev/stdout 2>/dev/null
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si9::sysinit:/bin/ln -sf /proc/self/fd/2 /dev/stderr 2>/dev/null
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si10::sysinit:/bin/hostname -F /etc/hostname
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rcS:12345:wait:/etc/init.d/rcS
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# S0:1:respawn:/sbin/getty -L ttyS0 115200 vt100 # GENERIC_SERIAL
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# Stuff to do for the 3-finger salute
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#ca::ctrlaltdel:/sbin/reboot
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# Stuff to do before rebooting
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shd0:06:wait:/etc/init.d/rcK
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shd1:06:wait:/sbin/swapoff -a
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shd2:06:wait:/bin/umount -a -r
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# The usual halt or reboot actions
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hlt0:0:wait:/sbin/halt -dhp
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reb0:6:wait:/sbin/reboot
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