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| author |   Alex Olson <alex.olson+yocto@gmail.com> | 2013-06-25 15:10:48 -0500 |
|---|---|---|
| committer |   Paul Eggleton <paul.eggleton@linux.intel.com> | 2013-07-08 16:28:28 +0100 |
| commit | dba106b4fc1579185498b85f6e1ade494fcc588e (patch) | |
| tree | 1ec805352dd3ff3c738af43e633e38e5aaf74a3b /meta/recipes-core | |
| parent | a681d4d61270d479449eaa13c64b84493f444b97 (diff) | |
| download | openembedded-core-dba106b4fc1579185498b85f6e1ade494fcc588e.tar.gz | |
udev: only use devtmpfs for udev
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 This appears to be outdated logic that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 master rev: 31ab19ab69bc6504df01cac7ee0670ca78d247ab)
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>
Diffstat (limited to 'meta/recipes-core')
| -rw-r--r-- | meta/recipes-core/udev/udev/init | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/meta/recipes-core/udev/udev/init b/meta/recipes-core/udev/udev/init index cd87f50832..10f9d1a25e 100644 --- a/meta/recipes-core/udev/udev/init +++ b/meta/recipes-core/udev/udev/init @@ -43,9 +43,9 @@ case "$1" in echo "Halting..." halt fi - # mount the tmpfs on /dev, if not already done - LANG=C awk '$2 == "/dev" && ($3 == "tmpfs" || $3 == "devtmpfs") { exit 1 }' /proc/mounts && { - mount -n -o mode=0755 -t tmpfs none "/dev" + # mount the devtmpfs on /dev, if not already done + LANG=C awk '$2 == "/dev" && ($3 == "devtmpfs") { exit 1 }' /proc/mounts && { + mount -n -o mode=0755 -t devtmpfs none "/dev" } [ -e /dev/pts ] || mkdir -m 0755 /dev/pts [ -e /dev/shm ] || mkdir -m 1777 /dev/shm |