[Bug 573114] Re: at bootup get "can't mount /proc/usb/hub" message

Fri Aug 13 22:17:19 UTC 2010

Blaine -

Thanks for the note.

I had to re-install 10.04 yesterday after the laptop was repaired.  (IBM
wiped the HDD.  I had everything backed up but still wished they wouldn't
have done that.)

Anyway, after a fresh install, changing from ext3 to ext4, then installing
 247 updates, the error message went away and boot time is significantly
decreased.

I will save your message in case Ubuntu suffers a regression again in the
future.

              Don

On Fri, Aug 13, 2010 at 9:45 AM, Blaine <573114 at bugs.launchpad.net>
wrote:

> I know what usually causes this if anyone is interested.  In 9.10 you
> need to add something like this to /etc/fstab:
>
> none /proc/bus/usb usbfs devgid=124,devmode=664 0 0
>
> in order for virtualbox to be able to access usb.  With 10.04,
> apparently, this line isn't needed and virtulbox can access usb out of
> the box.  This line was left over on my laptop from 9.10 on my upgrade
> to 10.04 and caused my system to hang.  This has happened to me twice:
> Once when I upgraded from 9.10 to 10.04 and today when I rebooted after
> a system update (using a fresh 10.04 install). When I did my original
> 9.10=>10.04 upgrade, the system did not actually give me the 'Press S to
> Skip or M to manually mount' message on the splash screen; it just hung
> and was apparently waiting for a key press (s or m).   I ended up doing
> a full wipe and reinstall, only to have the same error happen after I
> added the line to /etc/fstab when I installed virtualbox.  Now I know
> that I could have avoided the entire wipe if only I had pressed "s".
> Live and Learn, I suppose.
>
> So.  To get rid of this message, try removing the /etc/fstab line
> regarding /proc/bus/usb if you have one.
>
> --
> at bootup get "can't mount /proc/usb/hub" message
> https://bugs.launchpad.net/bugs/573114
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in “linux” package in Ubuntu: Expired
>
> Bug description:
> I installed 10.04 last night by upgrade.  Now, at bootup, I get an error
> message "Can't mount /proc/usb" and boot will not proceed until I dismiss it
> by typing an "s".  The computer then goes on to boot without problems and
> everything works including USB sticks.
>
> ProblemType: Bug
> DistroRelease: Ubuntu 10.04
> Package: linux-image-2.6.32-21-generic 2.6.32-21.32
> Regression: Yes
> Reproducible: Yes
> ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
> Uname: Linux 2.6.32-21-generic x86_64
> AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
> Architecture: amd64
> ArecordDevices:
>  shm_open() failed: Permission denied
>  **** List of CAPTURE Hardware Devices ****
>  card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> AudioDevicesInUse:
>  USER        PID ACCESS COMMAND
>  /dev/snd/controlC0:  don        1405 F.... pulseaudio
> CRDA: Error: [Errno 2] No such file or directory
> Card0.Amixer.info:
>  Card hw:0 'Intel'/'HDA Intel at 0xf0620000 irq 17'
>   Mixer name   : 'Conexant CX20561 (Hermosa)'
>   Components   : 'HDA:14f15051,17aa211f,00100000'
>   Controls      : 14
>   Simple ctrls  : 7
> Card29.Amixer.info:
>  Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw
> 6EHT09WW-1.02'
>   Mixer name   : 'ThinkPad EC 6EHT09WW-1.02'
>   Components   : ''
>   Controls      : 1
>   Simple ctrls  : 1
> Card29.Amixer.values:
>  Simple mixer control 'Console',0
>   Capabilities: pswitch pswitch-joined penum
>   Playback channels: Mono
>   Mono: Playback [off]
> Date: Sat May  1 09:16:03 2010
> GvfsMonitorLog: Monitoring events. Press Ctrl+C to quit.
> HibernationDevice: RESUME=UUID=7ce42f56-86b9-4f13-b3a7-77a41b09d7f9
> HotplugNewDevices:
>
> HotplugNewMounts:
>
> MachineType: LENOVO 2776P4U
> ProcCmdLine: root=UUID=0ffacbda-ac07-43e9-b344-e5788b383333 ro quiet splash
> ProcEnviron:
>  PATH=(custom, no user)
>  LANG=en_US.UTF-8
>  SHELL=/bin/bash
> RelatedPackageVersions: linux-firmware 1.34
> SourcePackage: linux
> Symptom: storage
> UdevMonitorLog:
>  monitor will print the received events for:
>  UDEV - the event which udev sends out after rule processing
> UdisksMonitorLog: Monitoring activity from the disks daemon. Press Ctrl+C
> to cancel.
> WpaSupplicantLog:
>
> dmi.bios.date: 10/09/2008
> dmi.bios.vendor: LENOVO
> dmi.bios.version: 6EET21WW (1.02 )
> dmi.board.name: 2776P4U
> dmi.board.vendor: LENOVO
> dmi.board.version: Not Available
> dmi.chassis.asset.tag: No Asset Information
> dmi.chassis.type: 10
> dmi.chassis.vendor: LENOVO
> dmi.chassis.version: Not Available
> dmi.modalias:
> dmi:bvnLENOVO:bvr6EET21WW(1.02):bd10/09/2008:svnLENOVO:pn2776P4U:pvrThinkPadX301:rvnLENOVO:rn2776P4U:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
> dmi.product.name: 2776P4U
> dmi.product.version: ThinkPad X301
> dmi.sys.vendor: LENOVO
>
> To unsubscribe from this bug, go to:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/573114/+subscribe
>

-- 
at bootup get "can't mount /proc/usb/hub" message
https://bugs.launchpad.net/bugs/573114
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