specify rootdir of image in update mode

[bliblubli]

Hi,
How can I specify the root directory of a wim image when updating it? I tried the command "add dir1 .\" but it just creates a folder named ".\" at the root of the image. I also tried to let it blank, but wimlib refuses it and says it requires 2 arguments.

[synchronicity]

Just use a slash:

add dir1 /