Since systemd also used tmpfs we should make a similar patch for
the systemd-udev script
Fix for bug: https://bugzilla.yoctoproject.org/show_bug.cgi?id=4632
Since udev 172, the 'mknod' logic was removed from udev. Yocto Dylan
is now using udev 182. This means /dev is now required to be a
devtmpfs filesystem (maintained by the kernel). If the root
filesystem is a ramdisk, the kernel's auto-mount of /dev doesn't
activate since there is no rootfs to actually mount... The bug causes
an unusable system as /dev doesn't contain even basic nodes required
to even get a login prompt.
The Yocto udev/init script mounts tmpfs if it does not detect tmpfs
or devtmpfs mounted at /dev. This appears to be outdated logic that
is no longer correct. I believe the Yocto udev init script should be
checking and mounting only 'devtmpfs' on dev.
(From OE-Core rev: d3616f31617830cac9375e8f4aa33e344ac554ed)
Signed-off-by: Alex Olson <alex.olson+yocto@gmail.com>
[YOCTO #4632]
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Previouly, the udev-cache has no real effect even if it's installed
into the system. The key problem here is that at first boot, the
/etc/dev.tar is not present, thus resulting /dev/shm/udev.cache not
created on first boot even if udev-cache is enabled.
This patch fixes this problem. The /dev/shm/udev.cache will be created
if necessary, that is, on first boot or when some part of the system is
changed. In the latter case, the udev cache may not be valid.
[YOCTO #4738]
(From OE-Core rev: 84e0ec2e677fb0236a38478372cdd75797cf5a2e)
Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
root@emenlow-noemgd:~# /etc/init.d/systemd-udevd restart
Stopping udevd
Starting udev
corrupt queue file
root@emenlow-noemgd:~# /etc/init.d/systemd-udevd status
udevd is stopped
root@emenlow-noemgd:~# ps
3805 root 8728 S /lib/systemd/systemd-udevd
The process name is systemd-udevd rather than udev which is
used in systemd-udevd's init script.
[YOCTO #4746]
(From OE-Core rev: 8f59aa06f3eb955d58600dfc628bd3b5d2aa0f9a)
Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
The /run directory already exists as a tmpfs with /var/run as a symbolic
link pointing to /run.
(From OE-Core rev: ee8e5b3ddaae1d3ae473a3cea2ff60fcee5877a2)
Signed-off-by: Jonathan Liu <net147@gmail.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Commit http://git.yoctoproject.org/cgit.cgi/poky/commit/?id=f76d4b3549ca220fa4bf84db2756ab45e11d06a3
moved volatiles handling for /run to the udev code only. This breaks
sysvinit+systemd combined systems when building sysvinit images.
This patch hacks the udevd init script in systemd to provide
the missing symlink allowing the sysvinit images built with udevd
from systemd to work correctly.
(From OE-Core rev: 6c6e5dc0baccd0904f785b1f80f39b5f530779cf)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
As with udev, placing binaries in /lib breaks our current multilib
implementation. Change the rootlibexecdir to /sbin/systemd so that binaries
don't move in multilib situations.
(From OE-Core rev: d612ca261d12e89e96675c24d9d7456319179720)
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
With both sysvinit and systemd features it's possible to use systemd's udev with
sysvinit, so add the required init script.
(From OE-Core rev: b58a176936740e8e291f1e82229a8ca044bdb044)
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
