sudo: must be setuid root

[NikeshVarghese]

am working in a one small company
i planned to take my systems as a server so i have installed the subversion set up in to my desktop
am using the linux version is ubuntu 11.10
machine roobooting also problem.

[Irithori]

By default, ubuntu has the root login disabled. Everything shall be done via sudo.
As your sudo is not working, you need to boot the machine into init level 1 or boot a linux livecd.
After the root partition is mounted, you can then set the permission right with

chmod 4755 <MOUNTPOINT>/usr/bin/sudo

However: You say, you cant reboot the machine. This leads to a dead end.
Maybe find a maintenance window, where a reboot is possible.

P.S.:
- Reusing an existing desktop installation as a server is probably not the best idea, as it will have lots of unneeded packages.
- Most probably, the desktop hardware is also not made for server duty. Redundant powersupply, raid, remote management, SLAs,..
- 11.10 is already a bit old. 12.04 is the actual version.

[NikeshVarghese]

thank you for ur kind advice.
actually am completed computer engineering in the last year only.
and am working here from the last two months
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actually what in the sense server doing with another systems using subversions.
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