Both in Opie and GPE I cannot get the uptime of my machine (Collie), running OZ 3.5.3.
root@neutrino:/home/root# uptime
uptime: couldn't get boot time: No such file or directory
I can't understand this behaviour, nevertheless /proc/uptime seems to be ok.
root@neutrino:~# cat /proc/uptime
7694.13 762.66