Re: [Xen-devel] [PATCH] Don't attach needless options when launch pygrub

[Yu Zhiguo <yuzg@xxxxxxxxxxxxxx>]

Yu Zhiguo wrote:
> Ian Campbell wrote:
>>>> So it looks like specifying the kernel option in addition to bootloader
>>>> is infact useful if you are booting a Solaris or Netware domU but is
>>>> harmless/ignored otherwise. I think we need to continue to support this
>>>  It seems that incfg will be returned directly if DomU is not Solaris,
>>>
>>> def sniff_solaris(fs, cfg):
>>>     if not fs.file_exists("/platform/i86xpv/kernel/unix"):
>>>         return cfg
>>>
>>>
>>>     chosencfg = sniff_solaris(fs, incfg)
>>>
>>>  So, incfg change to chosencfg and then will be used.
>> Oh yes, this stuff seems needlessly complex, or at least prone to
>> misreading, by me at least ;-)
>>
> 
>  OK, I'll try to fix this point.
> 
>>>  What about copy the specified 'kernel' from DomU to a temp file.
>>> If there are 'bootloader' but no 'kernel', pygrub will copy and create temp 
>>> file.
>>> We can do the same things.
>> I think this is the current behaviour.
>>
>> Ian.
>>
> 
>  Oh, yes. It seems that path of specified 'kernel' will be checked 
> in configure_image(). We can delete this check if 'bootloader' is
> existent.

delete -> not do.
Because in this case, the path of 'kernel' is in DomU rather than Dom0.
Otherwise, xm create will break here.

Yu



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