Strange issue: sudo: effective uid is not 0, is sudo installed setuid root?

[Xenon]

(2nd Dec, 2013 08:12 PM)mk01 Wrote:  @d4m4s74

technically auto update process runs the same way as manually started with apt upgrade. hard to guess what was the ugly enemy causing this but definitely your file/folder owner ship was changed to xbian - binaries like su, sudo and other low level system utilities have suid bit set to 1 and are (normally owned by root) - so the process can become owned by root regardless of ID of owner of starting process.

and because xbian's ownership sudo complained about not having effective id 0. I will recheck package's scripts for any ugly stupid thing with using chown incorrectly. everything is possible. if you wan't help investigating maybe, those packages are -xbmc, -config-shell, -config-xbmc, -tvheadend. should be all.

if you hit on this again, let me know. can we exclude any stupid typo like this with chown on your side? (just asking, will check our debs for sure in any case).

Hi mk01,
I have the same issue explained in this topic at the moment
I have it twice in 2 weeks, this is the second time actually.
Last week I rebuild the system from fresh image, but I'm worried why it happens again in the same way.
I've connected USB media NTFS which I'm going to replace with new extFat, do you think it should solve this strange issue?
Honestly I'd like to solve the issue, do you think there is something should I do?

I don't know if can be useful but this is "mount" output:

Code:

/dev/mmcblk0p2 on / type btrfs (rw,noatime,compress=lzo,ssd,space_cache,autodefrag)
devtmpfs on /dev type devtmpfs (rw,relatime,size=191796k,nr_inodes=47949,mode=755)
none on /dev/pts type devpts (rw,nosuid,noexec,relatime,mode=600)
none on /proc type proc (rw,nosuid,nodev,noexec,relatime)
none on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
none on /run type tmpfs (rw,nosuid,nodev,noexec,noatime,size=38376k)
/dev/mmcblk0p1 on /boot type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,​errors=remount-ro)
/dev/mmcblk0p2 on /home type btrfs (rw,noatime,compress=lzo,ssd,space_cache,autodefrag)
/dev/mmcblk0p2 on /lib/modules type btrfs (rw,noatime,compress=lzo,ssd,space_cache,autodefrag)
/dev/mmcblk0p2 on /xbmc-backup type btrfs (rw,noatime,compress=lzo,ssd,space_cache,autodefrag)

Thank you for the help