[Xen-API] XCP 1.6 unattended PXE install, answers file

[Alexandre Kouznetsov <alk@xxxxxxxxxx>]

Hello.

I'm setting up the environment for unattended install of XCP 1.6 via 
PXE. It is supposed to be used to deploy XCP 1.6 on a number of remote 
boxes. Generally, it works in a wonderful way, but i have some doubts 
about the answers file.
I'm using this reference:
http://docs.vmd.citrix.com/XenServer/6.0.0/1.0/en_gb/installation.html#pxe_boot_install 

1. <root-password>mypassword</root-password>
XML answers file is plain, published on a (even private) web server. 
Putting a plain root password there seems not to be that good idea. Is 
it possible to specify the password's hash, instead of plain?
2. <admin-interface name="eth0" />
Sometimes the interfaces are detected in different order. Is it possible 
to specify the interface by something else, instead of it's name? MAC 
address, for example?
I could try to play around with <script stage="filesystem-populated">: 
find the desired interface, rename it to something very specific and use 
that name as admin-interface, but i wish to avoid that complexity, if 
possible.
I have found this question asked elswhere, but not answered.

3. <primary-disk>sda</primary-disk>
Same applies to primary-disk, the order of detection may vary. Is there 
any other way to refer the target disk, beside it's name? Like names 
from /dev/disk/by-id.
Also, it could be nice to use specific IDs in order to prevent a 
accidental disk wipe, since the install is fully automated.
Thank you.

--
Alexandre Kouznetsov

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