sudo doesn't work on fresh install of kubuntu

[RyanC]

I've just done an install of Kubuntu 7.10 using the Alternative install CD (I am using root on RAID1+LVM2) sudo is non-functional

r@windy:~$ sudo cat /etc/shadow
[sudo] password for r:
r@windy:~$
r@windy:~$ sudo cat /etc/shadow
r@windy:~$ strace -ff sudo cat /etc/shadow
execve("/usr/bin/sudo", ["sudo", "cat", "/etc/shadow"], [/* 32 vars */]) = 0
brk(0) = 0x8062000
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7fde000
access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=50270, ...}) = 0
mmap2(NULL, 50270, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7fd1000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
open("/lib/libpam.so.0", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0000\32\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=37880, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7fd0000
mmap2(NULL, 40660, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7fc6000
mmap2(0xb7fcf000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x8) = 0xb7fcf000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
open("/lib/tls/i686/cmov/libdl.so.2", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0p\n\0\000"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=9684, ...}) = 0
mmap2(NULL, 12412, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7fc2000
mmap2(0xb7fc4000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1) = 0xb7fc4000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
open("/lib/tls/i686/cmov/libc.so.6", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\260a\1"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=1339816, ...}) = 0
mmap2(NULL, 1349136, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7e78000
mmap2(0xb7fbc000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x143) = 0xb7fbc000
mmap2(0xb7fbf000, 9744, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7fbf000
close(3) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7e77000
set_thread_area({entry_number:-1 -> 6, base_addr:0xb7e776b0, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0
mprotect(0xb7fbc000, 4096, PROT_READ) = 0
munmap(0xb7fd1000, 50270) = 0
geteuid32() = 1000
write(2, "sudo: ", 6sudo: ) = 6
write(2, "must be setuid root", 19must be setuid root) = 19
write(2, "\n", 1
) = 1
exit_group(1) = ?
Process 10342 detached
r@windy:~$ ls -al `which sudo`
-rwsr-xr-x 2 root root 91776 2007-06-15 05:49 /usr/bin/sudo

Ideas?

[Koen (koen-beek)]

could you do a

ls -l /etc/shadow
?

thanks,

   Koen

[Koen (koen-beek)]

We are closing this bug report because it lacks the information we need to investigate the problem, as described in the previous comments. Please reopen it if you can give us the missing information, and don't hesitate to submit bug reports in the future. To reopen the bug report you can click on the current status, under the Status column, and change the Status back to "New". Thanks again!