>каталог /proc теперь называется /sys.
Не совсем так. Вот часть документа Wonderful world of Linux 2.6.0 (http://kniggit.net/wwol26.html):
"The final, but possibly the most obvious, ramification of the new centralized infrastructure is the creation of a new "system" filesystem (to join 'proc' for processes, 'devfs' for devices, and 'devpts' for UNIX98 pseudo-terminals) called 'sysfs'. This filesystem (intended to be mounted on '/sys') is a visible representation of the device tree as the kernel sees it (with some exceptions)."
Так что /proc и /sys - разные вещи.