Bug 3452

Summary:	[p1022ds] udev error: can not mount harddisk and usb stick
Product:	[Build System, Metadata & Runtime] BSPs	Reporter:	Yi Zhao <yi.zhao>
Component:	bsps-meta-fsl-ppc	Assignee:	Zhenhua Luo <zhenhua.luo>
Status:	VERIFIED FIXED	QA Contact:
Severity:	major
Priority:	Medium	CC:	b40290, hongxu.jia, liang.li2, msm-oss, Qi.Chen, sgw, yi.zhao, zhenhua.luo
Version:	1.4
Target Milestone:	1.4
Hardware:	Other
OS:	ppc
Whiteboard:
OS type for building Yocto:	---	Type of Regression:	---
Verified:		Documentation change:	---

Description Yi Zhao 2012-11-16 09:28:43 UTC

Image Location: http://autobuilder.yoctoproject.org/pub/nightly/20121114-1/machines/p1022ds/

gitinfo:
meta-yocto        = "master:1fd9a16d2a4594a4e9179dc7353ac51ce32eb712"
meta-fsl-ppc      = "master:8b14fc1436eb204d961c45f5515748c5636ceed6"

When system booting, there were some error messages with udevd:
##################
udevd[1363]: starting version 182
ata_id[1481]: unable to open '/dev/sda'

udevd[1378]: inotify_add_watch(6, /dev/loop1, 10) failed: No such file or directory

udevd[1382]: inotify_add_watch(6, /dev/loop4, 10) failed: No such file or directory

udevd[1376]: inotify_add_watch(6, /dev/loop0, 10) failed: No such file or directory

udevd[1384]: inotify_add_watch(6, /dev/loop5, 10) failed: No such file or directory

udevd[1394]: inotify_add_watch(6, /dev/loop6, 10) failed: No such file or directory

udevd[1381]: inotify_add_watch(6, /dev/loop3, 10) failed: No such file or directory

udevd[1380]: inotify_add_watch(6, /dev/loop2, 10) failed: No such file or directory

udevd[1448]: inotify_add_watch(6, /dev/ram11, 10) failed: No such file or directory

udevd[1458]: inotify_add_watch(6, /dev/ram15, 10) failed: No such file or directory

udevd[1410]: inotify_add_watch(6, /dev/loop7, 10) failed: No such file or directory

udevd[1449]: inotify_add_watch(6, /dev/ram12, 10) failed: No such file or directory

udevd[1450]: inotify_add_watch(6, /dev/ram13, 10) failed: No such file or directory

udevd[1437]: inotify_add_watch(6, /dev/ram10, 10) failed: No such file or directory

udevd[1526]: inotify_add_watch(6, /dev/ram7, 10) failed: No such file or directory

udevd[1457]: inotify_add_watch(6, /dev/ram14, 10) failed: No such file or directory

udevd[1527]: inotify_add_watch(6, /dev/ram8, 10) failed: No such file or directory

udevd[1528]: inotify_add_watch(6, /dev/ram9, 10) failed: No such file or directory

udevd[1522]: inotify_add_watch(6, /dev/ram4, 10) failed: No such file or directory

udevd[1524]: inotify_add_watch(6, /dev/ram6, 10) failed: No such file or directory

udevd[1523]: inotify_add_watch(6, /dev/ram5, 10) failed: No such file or directory

udevd[1371]: inotify_add_watch(6, /dev/sda, 10) failed: No such file or directory

udevd[1376]: inotify_add_watch(6, /dev/sda3, 10) failed: No such file or directory

udevd[1371]: inotify_add_watch(6, /dev/sda1, 10) failed: No such file or directory

udevd[1375]: inotify_add_watch(6, /dev/sda2, 10) failed: No such file or directory

Starting Bootlog daemon: bootlogd: cannot allocate pseudo tty: No such file or directory
bootlogd.
#################

The system could not recognize the harddisk. There were no device files sda* in /dev/ directory:
################
root@p1022ds:~# ls /dev/sda*
ls: cannot access /dev/sda*: No such file or directory
root@p1022ds:~# fdisk -l /dev/sda
root@p1022ds:~# 
################

When I plugged a USB stick, there was a similar error message with udev and also could not create device file in /dev direcotry:
################
root@p1022ds:~# 
root@p1022ds:~# usb 1-1: new high speed USB device number 2 using fsl-ehci
scsi2 : usb-storage 1-1:1.0
scsi 2:0:0:0: Direct-Access     Netac    OnlyDisk         1.00 PQ: 0 ANSI: 2
sd 2:0:0:0: Attached scsi generic sg1 type 0
sd 2:0:0:0: [sdb] 2009600 512-byte logical blocks: (1.02 GB/981 MiB)
sd 2:0:0:0: [sdb] Write Protect is off
sd 2:0:0:0: [sdb] Mode Sense: 03 00 00 00
sd 2:0:0:0: [sdb] No Caching mode page present
sd 2:0:0:0: [sdb] Assuming drive cache: write through
sd 2:0:0:0: [sdb] No Caching mode page present
sd 2:0:0:0: [sdb] Assuming drive cache: write through
 sdb: sdb1
sd 2:0:0:0: [sdb] No Caching mode page present
sd 2:0:0:0: [sdb] Assuming drive cache: write through
sd 2:0:0:0: [sdb] Attached SCSI removable disk

root@p1022ds:~# 
root@p1022ds:~# ls /dev/sdb*
ls: cannot access /dev/sdb*: No such file or directory
root@p1022ds:~# 
root@p1022ds:~# fdisk -l /dev/sdb
root@p1022ds:~# 
root@p1022ds:~# 
root@p1022ds:~# grep "udev" /var/log/messages 
Aug  9 11:11:00 p1022ds user.err kernel: 0>udevd[1363]: starting version 182
Aug  9 11:24:36 p1022ds daemon.err udevd[1633]: inotify_add_watch(6, /dev/sdb, 10) failed: No such file or directory
Aug  9 11:24:36 p1022ds daemon.err udevd[1633]: inotify_add_watch(6, /dev/sdb1, 10) failed: No such file or directory
root@p1022ds:~# 
#####################

Comment 1 Chunrong Guo 2013-03-22 06:48:35 UTC

udev182 needs  CONFIG_DEVTMPFS and CONFIG_DEVTMPFS_MOUNT in kernel.

please enable the option Automount devtmpfs at /dev, after the kernel mounted the rootfs (CONFIG_DEVTMPFS_MOUNT) in kernel.
The option can be found in menuconfig under Device Drivers-> Generic Driver options and is called Maintain a devtmpfs filesystem to mount at /dev.

I  tested  successfully in p1022ds board by the way.

Comment 2 Chunrong Guo 2013-04-12 05:54:27 UTC

The udev is upgraded to 182, the /dev mount requires CONFIG_DEVTMPFS_MOUNT
is enabled in Kernel, so enable the option for QorIQ SDK targets

Comment 3 Chunrong Guo 2013-04-12 06:18:36 UTC

the patch for this applied in both dylan and master.

meta-fsl-ppc = "master:5834aa107616f014952b282593fba563a70d2453"

Comment 4 Chunrong Guo 2013-04-12 06:20:39 UTC

*** Bug 3837 has been marked as a duplicate of this bug. ***

Comment 5 Yi Zhao 2013-04-24 09:12:25 UTC

Verified with dylan branch: 963a659205b18e6066cf5826703a60af4df71ef7