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Old 07-13-2011, 04:36 PM
Vikas
 
Default Redhat-install-list Digest, Vol 89, Issue 4

Hi,
*
Please find Attached herewith is the updated Profile of mine.In case any more detail is required, I can be reached at 9891830380.
*
Total Exp : 3.0 Yrs
CTC: 3.6 LPA
Notice: 02 months
*
*
Thank you
Vikas Sharma



On Wed, Jul 13, 2011 at 9:30 PM, <redhat-install-list-request@redhat.com> wrote:

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Today's Topics:

* 1. Remove ehci_hcd (redhat@buglecreek.com)
* 2. Re: Remove ehci_hcd (Rick Stevens)
* 3. Re: Remove ehci_hcd (redhat@buglecreek.com)



----------------------------------------------------------------------

Message: 1
Date: Tue, 12 Jul 2011 12:40:30 -0600
From: redhat@buglecreek.com
To: redhat-install-list@redhat.com

Subject: Remove ehci_hcd
Message-ID: <1310496030.20298.2151002965@webmail.messagingengi ne.com>
Content-Type: text/plain; charset="us-ascii"


I would like to prevent ehci_hcd from loading at boot. *Doing a modprobe
-r will remove the module, but it re-appers when rebooted. *I could put
the command in rc.local, but I would rather not. *I have tried the

following things, but it always gets loaded at boot:

Added "blacklist ehci_hcd" /etc/modprobe.d/blacklist
Tried "alias ehci_hcd off" to modprobe.conf
Tried "inistall ehci_hcd /bin/true" to modprobe.conf

I'm seems to be *getting loaded with the initrd.img file. I see the
module directories *when I mount the image to loop. *I tried creating a
new initrd.img, but I havn't been able get the ehci_hcd module to not

show up in the newly created initrd.

Any suggestions?



------------------------------

Message: 2
Date: Tue, 12 Jul 2011 13:04:39 -0700
From: Rick Stevens <ricks@nerd.com>

To: Getting started with Red Hat Linux
* * * *<redhat-install-list@redhat.com>
Subject: Re: Remove ehci_hcd
Message-ID: <4E1CA8D7.5060400@nerd.com>

Content-Type: text/plain; charset=ISO-8859-1

On 07/12/2011 11:40 AM, redhat@buglecreek.com wrote:
> I would like to prevent ehci_hcd from loading at boot. *Doing a modprobe

> -r will remove the module, but it re-appers when rebooted. *I could put
> the command in rc.local, but I would rather not. *I have tried the
> following things, but it always gets loaded at boot:
>

> Added "blacklist ehci_hcd" /etc/modprobe.d/blacklist
> Tried "alias ehci_hcd off" to modprobe.conf
> Tried "inistall ehci_hcd /bin/true" to modprobe.conf
> I'm seems to be *getting loaded with the initrd.img file. I see the

> module directories *when I mount the image to loop. *I tried creating a
> new initrd.img, but I havn't been able get the ehci_hcd module to not
> show up in the newly created initrd.

It would help if we knew what version of the OS you're running.

Assuming something like RHEL 5.6, then you should remove what you did
before. *Next you should add "blacklist ehci_hcd" to the end of the
/etc/modprobe.d/blacklist" file. *Then remove the module from the

running system via:

* * * *# modprobe -r ehci_hcd

Finally, you need to rebuild the initrd image. *This is usually done by:

* * * *# cd /boot
* * * *# mkinitrd -fv initrd-`uname -r`.img `uname -r`


Reboot and that should do it.
----------------------------------------------------------------------
- Rick Stevens, Systems Engineer, C2 Hosting * * * * *ricks@nerd.com -

- AIM/Skype: therps2 * * * *ICQ: 22643734 * * * * * *Yahoo: origrps2 -
- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *-
- * * *Do you know how to save five drowning lawyers? *No? *GOOD! * *-

----------------------------------------------------------------------



------------------------------

Message: 3
Date: Tue, 12 Jul 2011 14:59:04 -0600
From: redhat@buglecreek.com

To: "Getting started with Red Hat Linux"
* * * *<redhat-install-list@redhat.com>
Subject: Re: Remove ehci_hcd
Message-ID: <1310504344.8733.2151051205@webmail.messagingengin e.com>

Content-Type: text/plain; charset="us-ascii"

On Tue, 12 Jul 2011 13:04 -0700, "Rick Stevens" <ricks@nerd.com> wrote:
> On 07/12/2011 11:40 AM, redhat@buglecreek.com wrote:

> > I would like to prevent ehci_hcd from loading at boot. *Doing a modprobe
> > -r will remove the module, but it re-appers when rebooted. *I could put
> > the command in rc.local, but I would rather not. *I have tried the

> > following things, but it always gets loaded at boot:
> >
> > Added "blacklist ehci_hcd" /etc/modprobe.d/blacklist
> > Tried "alias ehci_hcd off" to modprobe.conf

> > Tried "inistall ehci_hcd /bin/true" to modprobe.conf
> > I'm seems to be *getting loaded with the initrd.img file. I see the
> > module directories *when I mount the image to loop. *I tried creating a

> > new initrd.img, but I havn't been able get the ehci_hcd module to not
> > show up in the newly created initrd.
>
> It would help if we knew what version of the OS you're running.

> Assuming something like RHEL 5.6, then you should remove what you did
> before. *Next you should add "blacklist ehci_hcd" to the end of the
> /etc/modprobe.d/blacklist" file. *Then remove the module from the

> running system via:
>
> * * * # modprobe -r ehci_hcd
>
> Finally, you need to rebuild the initrd image. *This is usually done by:
>
> * * * # cd /boot
> * * * # mkinitrd -fv initrd-`uname -r`.img `uname -r`

>
> Reboot and that should do it.
> ----------------------------------------------------------------------
> - Rick Stevens, Systems Engineer, C2 Hosting * * * * *ricks@nerd.com -

> - AIM/Skype: therps2 * * * *ICQ: 22643734 * * * * * *Yahoo: origrps2 -
> - * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *-
> - * * *Do you know how to save five drowning lawyers? *No? *GOOD! * *-

> ----------------------------------------------------------------------
>
> _______________________________________________
> Redhat-install-list mailing list
> Redhat-install-list@redhat.com

> https://www.redhat.com/mailman/listinfo/redhat-install-list
> To Unsubscribe Go To ABOVE URL or send a message to:
> redhat-install-list-request@redhat.com

> Subject: unsubscribe
>

Sorry, meant to give RH version of 5.6. *I had done the steps you
outlined above and the initrd created still loads the ehci module.
Removing the module and then doing a lsmod comfirms that it is unloaded.

*Created the initrd again using the verbose switch as you suggested and
I see:

Looking for deps of module ehci-hcd
Using modules:
/lib/modules/2.6.18-238.12.1.el5/kernel/drivers/usb/host/ehci-hcd.ko
(among others)

copy from
`/lib/modules/2.6.18-238.12.1.el5/kernel/drivers/usb/host/ehci-hcd.ko'
[elf32-i386] to `/tmp/initrd.wb7347/lib/ehci-hcd.ko' [elf32-i386]
Adding module ehci-hcd

I did a strace as well, but I can seem to see why it continues to load

the module in the new initrd. *I even tried using "blacklist ehci-hcd"
(instead of blacklist ehci_hcd) *in all the /etc/modprobe.d/ blacklist
files and no change.



------------------------------


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