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I'm not sure which debconf option should I use to bypass this disk change confirmation:

enter image description here

And does the order of debconf commands matters ?

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up vote 4 down vote accepted

This should do it:

d-i partman-lvm/confirm boolean true
d-i partman-lvm/confirm_nooverwrite boolean true

The order should not matter, but I wouldn't do something crazy like rewriting the default recipe from bottom to top :)

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