STLink V2 missing from installation ?
I had the same problem with my Manjaro Linux PC :
‘49-stlinkv2.rules’: No such file or directory
The file is not missing !
The problem comes from a path error in install_stlink_udev.sh script.
Please change line 16 :
sudo cp 49-stlinkv2.rules /etc/udev/rules.d
to :
sudo cp .installation/49-stlinkv2.rules /etc/udev/rules.d
That works for distributions with no gksudo installed.
The error has already been noted by an Fedora 21 user one year ago.
Cheers !