[virt-tools-list] Questions about cdrom installation in virt-manager

[Kevin Zhao]

Hi Cole,
     Sorry to disturb you. Firstly,thanks for your continuously help.
     I am not sure how to enter a local ISO path into the install URL 
field in the installation method "Network install(HTTP,FTP or NFS)" url 
to disk.
     I have tried to set up a http server in the s390x ,but find that 
the "localhost" is x86 which running virt-manager. Also , I try the 
"file:///var/lib/libvirt/images/**.iso", it don't find the iso image.
     So if you can provide*some examples of "local iso host"* ,it will 
be really better.
Big Thanks~

Best Regards,
Kevin
On 2015?11?12? 04:05, Cole Robinson wrote:
> On 11/11/2015 12:45 AM, Kevin Zhao wrote:
>> Hi Cole & all,
>>        There is a question just confusing me.
>>        When I use virt-install , set the  --location parameter like this :
>> --location /tmp/**.iso, virt-install can search the iso and get the tree.info
>> , kernel.img and initrd.img. But when I replace the parameter "--location "
>> with the "--cdrom", it will not be able to search the iso for kernel.img and
>> initrd.img ,I need to specify the kernel and initrd(Maybe inn the arch ppc64le
>> and s390x).
>>         But when I use virt-manager, choose the cdrom I can not get the
>> functions just like "--location". So does the virt-manager support the
>> functions just like "--location" do? I see that by using network installation
>> , virt-manager will search for tree.info, how to use  it  to get a local iso
>> treeinfo?
>>         My descriptions may not be very clear . So feel free to let me know if
>> you have any question.
>>
> The difference between --location $ISO and --cdrom $ISO are kinda subtle:
>
> --cdrom $ISO just passes the $ISO as a cdrom device to the guest
>
> --location $ISO tries to mount the $ISO locally, and treat that local path
> like a --location $URL install, pulling out the kernel/initrd. This allows
> passing in custom kernel args, but is kinda limited since you need root access
> to mount the iso
>
> You can actually trigger this with virt-manager by entering a local ISO path
> into the install URL field
>
> - Cole
>

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