On Sunday 14 September 2008 23:38:08 Michael Sullivan wrote: > On Sun, 2008-09-14 at 23:35 +0200, Pintér Tibor wrote: > > Michael Sullivan írta: > > > I think this is the same problem that wouldn't let me use su -. > > > > > > [EMAIL PROTECTED] ~ $ passwd > > > passwd: Authentication token manipulation error > > > > > > I'd like to change my password, but I can't. Any thoughts? > > > > readonly filesystem? > > missing suid? > > > > t > > And how would I check for/fix that?
the passwd program is installed in /bin, so run 'mount' and check the options it displays for the filesystem mounted at '/' and will look like this: /dev/root on / type reiserfs (rw,noatime,notail) You too should have 'rw' in the brackets suid: this is not a program, it is an attribute that you can set for a program file. I can see from your general comments that you are new to this game, so I won't try just yet to explain what suid means. Just run 'ls -al /usr/bin/passwd' and check that the first column looks like mine: -rws--x--x 1 root root 38464 Aug 4 02:42 /bin/passwd The 's' is vital, passwd will not work without it. In another post you mentioned getresuid(). Pretend you never saw this - it is a system call used by programmers when writing code. A user will never use it. You already have the ability to make programs suid - it's built into the kernel and the user programs that switch it on and off are part of a package called coreutils. I 100% guarantee that it is installed on your machine. -- alan dot mckinnon at gmail dot com
