On Sun, 15 May 2011 10:15:44 +0100 Richard W.M. Jones wrote: > I tried to change the background by altering the registry key but > could come up with anything that actually worked. I'm not exactly > sure what I'm doing wrong, but if you make it work please post how you > did it ...
Well, it was tricky. The registry key (actually two different ones apparently) holds the name of the image last used to make the cached .bmp file that is really used as the background, so it turned out I really needed to change two registry keys, convert the jpeg those keys point at to a .bmp and update the .bmp file really being used as the background (whew! :-). Here's the last half of my update-image script (which will probably get mangled by line wrapping :-) # Next we need to do the much more complex task of updating the wallpaper # image for the default login user (me). Start by grabbing the NTUSER.DAT # hive file. guestfish --ro -i -a $name.img download 'WIN:C:\Documents and Settings\'"$user"'\NTUSER.DAT' $tmpdir/NTUSER.DAT # Then update that hive to indicate that the wallpaper comes from the desired # standard wallpaper image bak="$tmpdir/bak.reg" sed -e 's/@JPEG@/'"$wallpaper"'/g' > $bak <<'EOF' [Control Panel\Desktop] "ConvertedWallpaper"="C:\\WINDOWS\\Web\\Wallpaper\\@[email protected]" [Software\Microsoft\Windows\CurrentVersion\Themes\LastTheme] "Wallpaper"="%SystemRoot%\\Web\\Wallpaper\\@[email protected]" EOF hivexregedit --merge $tmpdir/NTUSER.DAT $bak guestfish -i -a $name.img upload $tmpdir/NTUSER.DAT 'WIN:C:\Documents and Settings\'"$user"'\NTUSER.DAT' # But wait! There's more, we not only need to fix the registry, but also # update the cached bitmap image of the jpg file. guestfish --ro -i -a $name.img download 'WIN:C:\WINDOWS\Web\Wallpaper\'"$wallpaper"'.jpg' $tmpdir/wall.jpg bmp="$tmpdir/Wallpaper1.bmp" convert $tmpdir/wall.jpg $bmp guestfish -i -a $name.img upload $bmp 'WIN:C:\Documents and Settings\'"$user"'\Local Settings\Application Data\Microsoft\Wallpaper1.bmp' I'm going to write this up in more detail and stick it on my web site, but I haven't gotten around to it yet (just got the script to finally work yesterday). _______________________________________________ virt mailing list [email protected] https://admin.fedoraproject.org/mailman/listinfo/virt
