Driver dpt_i2o

Driver dpt_i2o

[Flavio Leitner]

Hi!

I'm trying to install XEN on my test machine because running
it on cdrom was too slow.

Well, that test machine is a dual P4 with hyperthreading,
2GB of RAM and scsi controller dpti2o. 
I read the Xeno-1.2-HOWTO.txt, and compile xenolinux without 
problem, but xen appears to not support dpti2o. 
Am I missing something here?

Another question, when the machine is at grub menu, 
we can pass dom0_mem= to limit the maximum amount of
memory. The question is: Creating another virtual 
machine will get memory from dom0 or that parameter
is only about memory used by dom0?

Thanks and congratulations!

-- 
Flávio Bruno Leitner <fbl@conectiva.com.br>
[ E74B 0BD0 5E05 C385 239E  531C BC17 D670 7FF0 A9E0 ]


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Re: Driver dpt_i2o

[Ian Pratt]

> I'm trying to install XEN on my test machine because running
> it on cdrom was too slow.
> 
> Well, that test machine is a dual P4 with hyperthreading,
> 2GB of RAM and scsi controller dpti2o. 
> I read the Xeno-1.2-HOWTO.txt, and compile xenolinux without 
> problem, but xen appears to not support dpti2o. 
> Am I missing something here?

Xen 1.2 does not support dpti20. You'll have to use the
'unstable' version or wait until it is released as Xen 2.0 (we
are *determined* to have the first 2.0 release candidate out
later this week).

> Another question, when the machine is at grub menu, 
> we can pass dom0_mem= to limit the maximum amount of
> memory. The question is: Creating another virtual 
> machine will get memory from dom0 or that parameter
> is only about memory used by dom0?

dom0_mem sets the initial memory allocation for domain 0. Other
domains can use the rest of memory (less what Xen uses).

Ian


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Re: Driver dpt_i2o

[Flavio Leitner]

On Tue, Aug 10, 2004 at 06:19:40PM +0100, Ian Pratt wrote:
> Xen 1.2 does not support dpti20. You'll have to use the
> 'unstable' version or wait until it is released as Xen 2.0 (we
> are *determined* to have the first 2.0 release candidate out
> later this week).

I checked out from bk the unstable version but appears to have
less drivers than the stable one. 


> dom0_mem sets the initial memory allocation for domain 0. Other
> domains can use the rest of memory (less what Xen uses).

Got it! Thanks!

-- 
Flávio Bruno Leitner <fbl@conectiva.com.br>
[ E74B 0BD0 5E05 C385 239E  531C BC17 D670 7FF0 A9E0 ]


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Re: Driver dpt_i2o

[Ian Pratt]

> On Tue, Aug 10, 2004 at 06:19:40PM +0100, Ian Pratt wrote:
> > Xen 1.2 does not support dpti20. You'll have to use the
> > 'unstable' version or wait until it is released as Xen 2.0 (we
> > are *determined* to have the first 2.0 release candidate out
> > later this week).
> 
> I checked out from bk the unstable version but appears to have
> less drivers than the stable one. 

You can just enable the drivers in the linux-2.4.26-xen0/.config
in the normal Linux fashion (unlike 1.2, where the drivers were
in Xen).

"Adaptec I2O RAID Support" under scsi > low-level drivers

or just set CONFIG_SCSI_DPT_I2O=y

Ian


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Re: Driver dpt_i2o

[Flavio Leitner]

On Tue, Aug 10, 2004 at 06:56:46PM +0100, Ian Pratt wrote:
> > On Tue, Aug 10, 2004 at 06:19:40PM +0100, Ian Pratt wrote:
> > I checked out from bk the unstable version but appears to have
> > less drivers than the stable one. 
> 
> You can just enable the drivers in the linux-2.4.26-xen0/.config
> in the normal Linux fashion (unlike 1.2, where the drivers were
> in Xen).

Sorry, but I don't understand.

I guess the directory xen/ is the top kernel (domain0) and it must 
be able to access directly the hardware and linux-2.4.26-sparse/ have the 
modifications needed to compile others domains in order to access the 
domain0.

Building xen/ with 'make' will compile the files inside of this 
directory and nothing else, no config at all.



-- 
Flávio Bruno Leitner <fbl@conectiva.com.br>
[ E74B 0BD0 5E05 C385 239E  531C BC17 D670 7FF0 A9E0 ]


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Re: Driver dpt_i2o

[Niraj Tolia]

On Tue, 10 Aug 2004 15:14:35 -0300, Flavio Leitner <fbl@conectiva.com.br> wrote:
> On Tue, Aug 10, 2004 at 06:56:46PM +0100, Ian Pratt wrote:
> > > On Tue, Aug 10, 2004 at 06:19:40PM +0100, Ian Pratt wrote:
> > > I checked out from bk the unstable version but appears to have
> > > less drivers than the stable one.
> >
> > You can just enable the drivers in the linux-2.4.26-xen0/.config
> > in the normal Linux fashion (unlike 1.2, where the drivers were
> > in Xen).
> 
> Sorry, but I don't understand.
> 
> I guess the directory xen/ is the top kernel (domain0) and it must
> be able to access directly the hardware and linux-2.4.26-sparse/ have the
> modifications needed to compile others domains in order to access the
> domain0.
> 
> Building xen/ with 'make' will compile the files inside of this
> directory and nothing else, no config at all.
> 
Hi Flavio,

Try the make world option. It will compile everything that you need.
Kernel and xen images will be found in install/boot. Also, you might
need to do a 'make twisted-install' amongst other things before xend
will run.

HTH,
Niraj


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