Running hddtemp as regular user

Message

Arainach · Post by **Arainach** » Sat Jan 29, 2005 12:45 am

For part of my torsmo config, I'd like to include the following line:

execi 5 hddtemp -n /dev/hda

The command (hddtemp -n /dev/hda) runs flawlessly as root. However, when run as a regular user, I get the following error:

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ERROR: You must be root to run the command, or the root must set the suid bit for the executable.

I've already copied hddtemp to /usr/bin (out of /usr/sbin) and chmod 755ed it. What is this "set the suid" bit?

WladyX · Post by **WladyX** » Sat Jan 29, 2005 1:13 am

try

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chmod u+s /usr/sbin/hddtemp

Arainach · Post by **Arainach** » Sat Jan 29, 2005 1:25 am

That worked perfectly. Thanks.

Out of curiosity, exactly what does that do?

desertstalker · Post by **desertstalker** » Sat Jan 29, 2005 1:48 am

runs hddtemp with root priverleges (sp?) so when a user runs it it runs as root. it is the suid bit.

fctk · Post by **fctk** » Tue Aug 16, 2005 5:59 pm

anyone know why sudo and the following line:

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%users ALL = NOPASSWD: /usr/sbin/hddtemp

is not enough?
i must issue:

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chmod u+s /usr/sbin/hddtemp

to make it work.

s0be · Post by **s0be** » Tue Aug 16, 2005 6:26 pm

did you do sudo hddtemp or just hddtemp once you had that sudo line?

fctk · Post by **fctk** » Tue Aug 16, 2005 6:32 pm

thanks s0be, i forgot to put the "sudo" in front of the command...

s0be · Post by **s0be** » Tue Aug 16, 2005 7:11 pm

that is my second most common error... most common is:

vi somescript.pl
cat logfile > somescript.pl

rather than

vi somescript.pl
cat logfile | somescript.pl

That usually hurts...

fctk · Post by **fctk** » Tue Aug 16, 2005 7:26 pm

s0be wrote:That usually hurts...

yes, i agree...

fctk · Post by **fctk** » Mon May 01, 2006 5:54 pm

it seems there is a better solution... see http://forums.gentoo.org/viewtopic-p-2675394.html (last post)