Re: USB 3 external disk works under OpenSUSE current

Wed, 06 Jul 2011 17:50:31 -0700

Below is written "I still cannot get the harddrive to mount -- no /dev/sde is autocreated -- but at least the basic hardware is there." In another situation with another operating system (SL5), but with a recognized external drive which wouldn't mount, the partprobe command, to inform the OS of partition table changes, created the /dev file, automounted the drive, and left the OS in a state such that the drive could be unmounted and mounted. I tried just making the needed /dev files with MAKEDEV, but that didn't let me mount the disk. I also tried using the SL5 version of partprobe, and that didn't work either; I had to use a more recent version. So if the installed version of partprobe doesn't get the harddrive to mount, perhaps one copied from the working USB-3 system will. 

Steven Yellin

On Wed, 6 Jul 2011, Yasha Karant wrote:


On 07/06/2011 10:58 AM, Jimmy Cullen wrote:

Before changing kernels, I would run an openSUSE liveCD to test if it
sees the USB3 device. Its a quick and simple way to rule out a
hardware problem.

Jimmy

On 6 July 2011 18:34, Yasha Karant<[email protected]>  wrote:

I have been attempting to get a USB 3 external disk to work under X86-64 
SL

6 .  lsusb reports a USB 3 port.  However, when the drive is inserted into

the USB 3 port, lsusb simply hangs and the drive does not appear nor 
mount.


On hardware using the same motherboard and processor as my workstation, we
also have installed OpenSUSE current (not Enterprise SUSE that is the

competitor to RHEL, e.g., SL).  The USB 3 external disk works and is seen 
as

USB 3.

Here is a copy of the relevant typescript:

Script started on Wed 06 Jul 2011 04:19:19 PM PDT
^[]2;admin@ahprc1:~^G^[]1;ahprc1^Gadmin@ahprc1:~>  lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 045e:00cb Microsoft Corp. Basic Optical Mouse v2.0

Bus 004 Device 002: ID 045e:00dd Microsoft Corp. Comfort Curve Keyboard 
2000

V1.0
Bus 008 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 008 Device 002: ID 152d:0551 JMicron Technology Corp. / JMicron USA
Technology Corp.
^[]2;admin@ahprc1:~^G^[]1;ahprc1^Gadmin@ahprc1:~>  uname -a
Linux ahprc1 2.6.37.1-1.2-desktop #1 SMP PREEMPT 2011-02-21 10:34:10 +0100
x86_64 x86_64 x86_64 GNU/Linux
^[]2;admin@ahprc1:~^G^[]1;ahprc1^Gadmin@ahprc1:~>  mount
devtmpfs on /dev type devtmpfs
(rw,relatime,size=4056988k,nr_inodes=1014247,mode=755)
tmpfs on /dev/shm type tmpfs (rw,relatime)
devpts on /dev/pts type devpts (rw,relatime,gid=5,mode=620,ptmxmode=000)
/dev/sda5 on / type ext2 (rw,relatime,errors=continue,user_xattr,acl)
proc on /proc type proc (rw,relatime)
sysfs on /sys type sysfs (rw,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
/dev/sda7 on /home type ext2 (rw,relatime,errors=continue,user_xattr,acl)
securityfs on /sys/kernel/security type securityfs (rw,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
gvfs-fuse-daemon on /home/admin/.gvfs type fuse.gvfs-fuse-daemon
(rw,nosuid,nodev,relatime,user_id=1000,group_id=100)
/dev/sdb7 on /media/_usr_local type ext2
(rw,nosuid,nodev,relatime,errors=continue,uhelper=udisks)
/dev/sdb6 on /media/_vmware type ext2
(rw,nosuid,nodev,relatime,errors=continue,uhelper=udisks)
/dev/sdb1 on /media/9aaab62a-50eb-4a36-a95c-02ed44d27881 type ext2
(rw,nosuid,nodev,relatime,errors=continue,uhelper=udisks)
/dev/sdb8 on /media/_opt1 type ext2
(rw,nosuid,nodev,relatime,errors=continue,uhelper=udisks)
/dev/sdb12 on /media/88b09855-c009-4cbd-b055-5bda1ec6d432 type ext2
(rw,nosuid,nodev,relatime,errors=continue,uhelper=udisks)
/dev/sdb3 on /media/_home1 type ext2
(rw,nosuid,nodev,relatime,errors=continue,uhelper=udisks)
/dev/sdb11 on /media/_usr11 type ext2
(rw,nosuid,nodev,relatime,errors=continue,uhelper=udisks)
/dev/sdb9 on /media/68cc9e91-1115-4eeb-8e55-bf0f22f6ac26 type ext2
(rw,nosuid,nodev,relatime,errors=continue,uhelper=udisks)
/dev/sdb5 on /media/167ee03e-960b-4c7e-8aba-b62f49d13834 type ext2
(rw,nosuid,nodev,relatime,errors=continue,uhelper=udisks)
/dev/sdb2 on /media/848f55af-9e8c-4f46-bf62-5fd2eb577eb6 type ext2
(rw,nosuid,nodev,relatime,errors=continue,uhelper=udisks)
^[]2;admin@ahprc1:~^G^[]1;ahprc1^Gadmin@ahprc1:~>  exit
exit

Script done on Wed 06 Jul 2011 04:20:20 PM PDT


Although the account is called "admin", admin is just a regular user on 
the
machine upon which the output was generated; I did not need to use any 
root

privileges.

A significant difference between the two machines is the kernel:

2.6.37.1-1.2-desktop x86_64 for OpenSUSE

and

2.6.32-131.2.1.el6.x86_64 for SL 6

2.6.37 seems to work, 2.6.32 does not .

Can I install a 2.6.37 x86_64 kernel on SL 6?  If it does not boot, will
grub during boot give me the usual option of selecting the kernel to boot
and boot the existing 2.6.32 kernel?

Yasha Karant



I did a different test, and have isolated the problem to be a kernel bug.

Details:


We have a number of workstations that have identical motherboards, CPUs, etc. 
All are running X86-64 implementations, including the kernel.  On one of 
these we are running OpenSUSE as I documented earlier, and this works fine. 
On mine, I am running the most recent SL 6 production kernel.  On another, 
because we have not done an update, we are running an earlier SL 6 production 
kernel, 2.6.32-71.29.1.el6.x86_64, and the USB 3 device is at least 
recognized.  To make this work with this kernel and our configuration, I 
needed to do a


modprobe xhci_hcd


and then the devices were seen (the USB 3 hub and the external harddrive 
unit).
I copied the necessary /lib/modules directory as well as the appropriate 
files into /boot
from the working USB 3 system to my workstation.  I then modified grub.conf 
to allow these files to boot, and rebooted.  As you can see below, after the 
same modprobe command, USB 3 is seen.  I still cannot get the harddrive to 
mount -- no /dev/sde is autocreated -- but at least the basic hardware is 
there.  Thus, I conclude that the later kernel 2.6.32-131.2.1.el6.x86_64 has 
a bug compared to the earlier 2.6.32-71.29.1.el6.x86_64 .  Should I simply 
change to the still later OpenSUSE kernel or is there another solution?



Also, in RHEL 6, what is needed for the automatic creation of /dev/sdX where 
X is appropriate for a USB drive (e.g., /dev/sde automatically created on my 
particular workstation).


Output of lsusb verifying presence of USB 3 attached device.

[root@jb344 2.6.32-71.29.1.el6.x86_64]# lsusb

Bus 008 Device 002: ID 152d:0551 JMicron Technology Corp. / JMicron USA 
Technology Corp.

Bus 008 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 002: ID 03f0:0317 Hewlett-Packard LaserJet 1200
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 0424:2504 Standard Microsystems Corp. USB 2.0 Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Yasha Karant


Aside:  technical netiquette threading question.  In a non-threaded 
environment, in this reply to email I am hereby posting, I would have changed 
the subject to:



USB3 works under earlier SL6 kernel (was Re: USB 3 external disk works under 
OpenSUSE current)



However, if I were to do this, would I not cause issues with the way threaded 
readers work?  The new subject is more informative, and is not really a new 
thread.
























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