[Bug 512321] [NEW] please backport devtmpfs to the lucid linux-imx51 kernel tree

[Oliver Grawert]

Public bug reported:

currently the init script of initramfs-tools assumes that devtmpfs is
available in the kernel in lucid, other userspace tools like udev or
upstart might probably make use of this feature as well.

booting a babbage board currently results in an error message from init that it "can't mount none on /dev". 
this error results from the following code in the init script in initramfs:

--
# Note that this only becomes /dev on the real filesystem if udev's scripts
# are used; which they will be, but it's worth pointing out
if ! mount -t devtmpfs -o mode=0755 none /dev; then
        mount -t tmpfs -o mode=0755 none /dev
        mknod -m 0600 /dev/console c 5 1
        mknod /dev/null c 1 3
fi
--

if kernels without devtmpfs are still fully supported the error should
be quietened down, if we stop supporting kernels without devtmpfs in the
lucid release, the devtmpfs patch needs to be addded to the linux-imx51
tree.

note that not having devtmpfs is said to slow down booting by about 2
seconds.

** Affects: initramfs-tools (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: linux-fsl-imx51 (Ubuntu)
     Importance: High
     Assignee: Bryan Wu (cooloney)
         Status: New

** Affects: initramfs-tools (Ubuntu Lucid)
     Importance: Undecided
         Status: New

** Affects: linux-fsl-imx51 (Ubuntu Lucid)
     Importance: High
     Assignee: Bryan Wu (cooloney)
         Status: New


** Tags: armel

** Changed in: linux-fsl-imx51 (Ubuntu)
     Assignee: (unassigned) => Bryan Wu (cooloney)

** Changed in: linux-fsl-imx51 (Ubuntu)
   Importance: Undecided => High

** Tags added: armel

** Also affects: linux-fsl-imx51 (Ubuntu Lucid)
   Importance: High
     Assignee: Bryan Wu (cooloney)
       Status: New

** Also affects: initramfs-tools (Ubuntu)
   Importance: Undecided
       Status: New

-- 
please backport devtmpfs to the lucid linux-imx51 kernel tree
https://bugs.launchpad.net/bugs/512321
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