Changing CD Images (ISO files) in QEMU Console

[Mr. Teo En Ming (Zhang Enming)-2]

Hi,

I have tried to change CD ISO images during a HVM install using the following commands but it doesn't work. After changing the CD ISO image, it doesn't detect the new ISO image.

(qemu) eject -f hdc
(qemu) change hdc /media/hitachi/cd-rom-image.iso

Any ideas?

--
Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics) BEng(Hons)(Mechanical Engineering)
Alma Maters:
(1) Singapore Polytechnic
(2) National University of Singapore
My Primary Blog: http://teo-en-ming-aka-zhang-enming.blogspot.com
My Secondary Blog: http://enmingteo.wordpress.com
My Youtube videos: http://www.youtube.com/user/enmingteo
Email: space.time.universe@...
MSN: teoenming@...
Mobile Phone (SingTel): [phone]
Mobile Phone (Starhub Prepaid): [phone]
Age: 31 (as at 30 Oct 2009)
Height: 1.78 meters
Race: Chinese
Dialect: Hokkien
Street: Bedok Reservoir Road
Country: Singapore

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[Mr. Teo En Ming (Zhang Enming)-2]

After I did a change command, I executed "info block" but it tells me "not inserted".

--
Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics) BEng(Hons)(Mechanical Engineering)
Alma Maters:
(1) Singapore Polytechnic
(2) National University of Singapore
My Primary Blog: http://teo-en-ming-aka-zhang-enming.blogspot.com
My Secondary Blog: http://enmingteo.wordpress.com
My Youtube videos: http://www.youtube.com/user/enmingteo
Email: space.time.universe@...
MSN: teoenming@...
Mobile Phone (SingTel): [phone]
Mobile Phone (Starhub Prepaid): [phone]
Age: 31 (as at 30 Oct 2009)
Height: 1.78 meters
Race: Chinese
Dialect: Hokkien
Street: Bedok Reservoir Road
Country: Singapore

On Mon, Nov 2, 2009 at 8:52 PM, Mr. Teo En Ming (Zhang Enming) <space.time.universe@...> wrote:

Hi,

I have tried to change CD ISO images during a HVM install using the following commands but it doesn't work. After changing the CD ISO image, it doesn't detect the new ISO image.

(qemu) eject -f hdc
(qemu) change hdc /media/hitachi/cd-rom-image.iso

Any ideas?

--
Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics) BEng(Hons)(Mechanical Engineering)
Alma Maters:
(1) Singapore Polytechnic
(2) National University of Singapore
My Primary Blog: http://teo-en-ming-aka-zhang-enming.blogspot.com
My Secondary Blog: http://enmingteo.wordpress.com
My Youtube videos: http://www.youtube.com/user/enmingteo
Email: space.time.universe@...
MSN: teoenming@...
Mobile Phone (SingTel): [phone]
Mobile Phone (Starhub Prepaid): [phone]
Age: 31 (as at 30 Oct 2009)
Height: 1.78 meters
Race: Chinese
Dialect: Hokkien
Street: Bedok Reservoir Road
Country: Singapore

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[Vladimir Zidar]

 I think that Mr. Teo En Ming is missing his weight and color of eyes in
signature.

 Aren't there any rules about posting here? I understand that these are
not moderated, but 17 lines of signature and only one line of meaningful
text? it is pure spam, nothing else. Oh, yes, there is more. This post
contains not only 17 lines of signature, but yet another 17 lines of
quoted signature.

Sorry for going off topic.

Mr. Teo En Ming (Zhang Enming) wrote:

> After I did a change command, I executed "info block" but it tells me
> "not inserted".
>
> --
> Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics) BEng(Hons)(Mechanical
> Engineering)
> Alma Maters:
> (1) Singapore Polytechnic
> (2) National University of Singapore
> My Primary Blog: http://teo-en-ming-aka-zhang-enming.blogspot.com
> My Secondary Blog: http://enmingteo.wordpress.com
> My Youtube videos: http://www.youtube.com/user/enmingteo
> Email: space.time.universe@...
> <mailto:space.time.universe@...>
> MSN: teoenming@... <mailto:teoenming@...>
> Mobile Phone (SingTel): [phone]
> Mobile Phone (Starhub Prepaid): [phone]
> Age: 31 (as at 30 Oct 2009)
> Height: 1.78 meters
> Race: Chinese
> Dialect: Hokkien
> Street: Bedok Reservoir Road
> Country: Singapore
>
> On Mon, Nov 2, 2009 at 8:52 PM, Mr. Teo En Ming (Zhang Enming)
> <space.time.universe@... <mailto:space.time.universe@...>>
> wrote:
>
>     Hi,
>
>     I have tried to change CD ISO images during a HVM install using
>     the following commands but it doesn't work. After changing the CD
>     ISO image, it doesn't detect the new ISO image.
>
>     (qemu) eject -f hdc
>     (qemu) change hdc /media/hitachi/cd-rom-image.iso
>
>     Any ideas?
>
>     --
>     Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics)
>     BEng(Hons)(Mechanical Engineering)
>     Alma Maters:
>     (1) Singapore Polytechnic
>     (2) National University of Singapore
>     My Primary Blog: http://teo-en-ming-aka-zhang-enming.blogspot.com
>     My Secondary Blog: http://enmingteo.wordpress.com
>     My Youtube videos: http://www.youtube.com/user/enmingteo
>     Email: space.time.universe@...
>     <mailto:space.time.universe@...>
>     MSN: teoenming@... <mailto:teoenming@...>
>     Mobile Phone (SingTel): [phone]
>     Mobile Phone (Starhub Prepaid): [phone]
>     Age: 31 (as at 30 Oct 2009)
>     Height: 1.78 meters
>     Race: Chinese
>     Dialect: Hokkien
>     Street: Bedok Reservoir Road
>     Country: Singapore
>
>
>
>
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@...
> http://lists.xensource.com/xen-devel
>  

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[Andrew Lyon]

On Mon, Nov 2, 2009 at 12:52 PM, Mr. Teo En Ming (Zhang Enming)
<space.time.universe@...> wrote:

> Hi,
>
> I have tried to change CD ISO images during a HVM install using the
> following commands but it doesn't work. After changing the CD ISO image, it
> doesn't detect the new ISO image.
>
> (qemu) eject -f hdc
> (qemu) change hdc /media/hitachi/cd-rom-image.iso
>
> Any ideas?
>
> --
> Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics) BEng(Hons)(Mechanical
> Engineering)
> Alma Maters:
> (1) Singapore Polytechnic
> (2) National University of Singapore
> My Primary Blog: http://teo-en-ming-aka-zhang-enming.blogspot.com
> My Secondary Blog: http://enmingteo.wordpress.com
> My Youtube videos: http://www.youtube.com/user/enmingteo
> Email: space.time.universe@...
> MSN: teoenming@...
> Mobile Phone (SingTel): [phone]
> Mobile Phone (Starhub Prepaid): [phone]
> Age: 31 (as at 30 Oct 2009)
> Height: 1.78 meters
> Race: Chinese
> Dialect: Hokkien
> Street: Bedok Reservoir Road
> Country: Singapore
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@...
> http://lists.xensource.com/xen-users
>

I use a different method to change iso image for hvm domU:

Use xm block-list <domid> to find the cdrom be-path for the domain, for example:

 xm block-list 5
Vdev  BE handle state evt-ch ring-ref BE-path
768    0    0     4      9      16383 /local/domain/0/backend/vbd/5/768
5632   0    0     1      -1     -1    /local/domain/0/backend/vbd/5/5632

Having identified the cdrom device (5632) you can check what iso image
it is connected to:

xenstore-read /local/domain/0/backend/vbd/5/5632/params

(nothing returned)

To connect a new iso image:

xenstore-write /local/domain/0/backend/vbd/5/5632/params
/mnt/gl3-tb1_store/MWWin2003R2SvrStdx86_BX2SVOL_EN.iso

And you can now see that it is connected:

xenstore-read /local/domain/0/backend/vbd/5/5632/params
/mnt/gl3-tb1_store/MWWin2003R2SvrStdx86_BX2SVOL_EN.iso


This method works with both emulated devices and with gplpv drivers.

Andy

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