"must be setuid root"- Hardy

Jonas Norlander jonorland at gmail.com
Wed Jul 29 22:02:54 UTC 2009

On Wed, Jul 29, 2009 at 10:19 PM, Goh Lip<g.lip at gmx.com> wrote:
> Michael Hirsch wrote:
>> On Wed, Jul 29, 2009 at 4:43 AM, Goh Lip<g.lip at gmx.com> wrote:
>>> To try to rectify the problem, I booted into the (hardy) recovery (or
>>> single user) mode and at root prompt, did the following.
>>> chown root:root /usr/bin/sudo
>>> chown 4755 /usr/bin/sudo
>>> chmod 4755 /usr/bin/sudo
>>> shutdown -r now
>> Did you really mean that second command?  I don't know what "chown
>> 4755 ..." would do, but probably not anything good.  Or was having it
>> there just a typo.
>> What permissions does sudo have now?  Mine looks like:
>> $ ls -l /usr/bin/sudo
>> -rwsr-xr-x 2 root root 115136 2009-02-16 20:22 /usr/bin/sudo
>> Michael
> Yes, Michael, you are right. Saw the ls -l print out for the Karmic
> partition and is same as your output.
> My output from the Hardy WAS something like
> -rwsr-xr-x 2 4755 115136 2009-02-16 20:22 /usr/bin/sudo
> I am not sure about the above sequence but the '4755' was there.
> (I had used the numerical representations '4755' of permissions I read
> somewhere to change ownership)
> Redid again using
> chown root:root /usr/bin/sudo
> chmod u-s /usr/bin/sudo
> to get back a similar output as my Karmic partition.
> Sadly, it resulted in the same problem and Hardy remains inoperable.
> I figured, perhaps wrongly, that Hardy may become 'incorrectible'
> and I reinstalled Hardy. Took less than an hour to get back to the same
> condition as before the problem started, and made the following
> corrections at the Karmic fstab (after mkdir /mnt/Kde3, NOT media)
> LABEL=Kde3 /mnt/Kde3 ext3 defaults 0 2
> All is well.
> Michael, while I may have got back my Hardy by reinstallation and all is
>  back where I wanted it to be, it will be instructive, at least to me,
> if  you have further thoughts about how the problem may be corrected.
> I appreciate your feedback.
> Thanks.

It could be that your /etc/sudoers got corrupted or perhaps you by
mistake changed something in your /etc/fstab so the partition didn't
got mounted right.

/ Jonas

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