[Xen-users] can't bootup xend! what's "python-pam is required for XenAPI support"?

["youhongyu" <youhongyu@xxxxxxxxxxxxxxx>]

hi, 

my case: 
1. i use fedora3. 
2. i download src tarball and follow the README instructions to install all. I 
havn't divided xen0/xenU. 
3. mv /lib/tls /lib/tls.disable 
4. boot to xen kernal. 
then i find "xend start" can't work, it output nothing. please see following 
output. 
-------------------------following is 
output----------------------------------------- 
[root@localhost ~]# uname -r 
2.6.18-xen 

[root@localhost modules]# ls /usr/sbin/xen* 
/usr/sbin/xenbaked     /usr/sbin/xenconsoled  /usr/sbin/xenmon.py  
/usr/sbin/xenstored  /usr/sbin/xentrace_setmask 
/usr/sbin/xen-bugtool  /usr/sbin/xend         /usr/sbin/xenperf    
/usr/sbin/xentop 

[root@localhost modules]# ls /usr/sbin/xm* 
/usr/sbin/xm 

[root@localhost modules]# whereis xend 
xend: /usr/sbin/xend 
[root@localhost modules]# which xend 
/usr/sbin/xend 

[root@localhost modules]# ll /etc/init.d/x*   
-rwxr-xr-x  1 root root   866 Jan  8 22:11 /etc/init.d/xend 
-rwxr-xr-x  1 root root 11177 Jan  8 22:11 /etc/init.d/xendomains 
-rwxr-xr-x  1 root root  3710 Oct 21  2004 /etc/init.d/xfs 
-rwxr-xr-x  1 root root  2497 Jun 19  2004 /etc/init.d/xinetd 


[root@localhost xen]# xend start 
[root@localhost xen]# ps -ef | grep xen 
root         9     7  0 21:41 ?        00:00:00 [xenwatch] 
root        10     7  0 21:41 ?        00:00:00 [xenbus] 
root      5403     1  0 22:25 ?        00:00:00 xenstored --pid-file 
/var/run/xenstore.pid 
root      5408     1  0 22:25 ?        00:00:00 python /usr/sbin/xend start 
root      5409  5408  0 22:25 ?        00:00:00 python /usr/sbin/xend start 
root      5411     1  0 22:25 ?        00:00:00 xenconsoled 
root      5412  5409  0 22:25 ?        00:00:00 python /usr/sbin/xend start 
root      5413  5412  0 22:25 ?        00:00:00 python /usr/sbin/xend start 
root      5414  5411  0 22:25 ?        00:00:00 xenconsoled 
root      5415  5414  0 22:25 ?        00:00:00 xenconsoled 
root      5420  5320  0 22:25 pts/0    00:00:00 grep xen 

[root@localhost xen]# cat xend.log 
[2007-05-30 22:25:08 xend 5399] WARNING (__init__:988) python-pam is required 
for XenAPI support. 
[2007-05-30 22:25:08 xend 5409] INFO (__init__:988) Xend Daemon started 
[2007-05-30 22:25:08 xend 5409] INFO (__init__:988) Xend changeset: 
unavailable. 
[2007-05-30 22:25:08 xend 5409] INFO (__init__:988) Xend version: Unknown. 
[2007-05-30 22:25:08 xend 5409] ERROR (__init__:988) Exception starting xend 
((13, 'Permission denied')) 
Traceback (most recent call last): 
  File 
"/local/scratch/shand/3.0.4/xen-3.0.4-testing.hg/dist/install/usr/lib/python/xen/xend/server/SrvDaemon.py",
 line 336, in run 
  File 
"/local/scratch/shand/3.0.4/xen-3.0.4-testing.hg/dist/install/usr/lib/python/xen/xend/server/SrvServer.py",
 line 226, in create 
  File 
"/local/scratch/shand/3.0.4/xen-3.0.4-testing.hg/dist/install/usr/lib/python/xen/xend/server/SrvRoot.py",
 line 40, in __init__ 
  File 
"/local/scratch/shand/3.0.4/xen-3.0.4-testing.hg/dist/install/usr/lib/python/xen/web/SrvDir.py",
 line 82, in get 
  File 
"/local/scratch/shand/3.0.4/xen-3.0.4-testing.hg/dist/install/usr/lib/python/xen/web/SrvDir.py",
 line 52, in getobj 
  File 
"/local/scratch/shand/3.0.4/xen-3.0.4-testing.hg/dist/install/usr/lib/python/xen/xend/server/SrvNode.py",
 line 30, in __init__ 
  File 
"/local/scratch/shand/3.0.4/xen-3.0.4-testing.hg/dist/install/usr/lib/python/xen/xend/XendNode.py",
 line 220, in instance 
  File 
"/local/scratch/shand/3.0.4/xen-3.0.4-testing.hg/dist/install/usr/lib/python/xen/xend/XendNode.py",
 line 37, in __init__ 
  File 
"/local/scratch/shand/3.0.4/xen-3.0.4-testing.hg/dist/install/usr/lib/python/xen/xend/XendNode.py",
 line 210, in physinfo_dict 
  File 
"/local/scratch/shand/3.0.4/xen-3.0.4-testing.hg/dist/install/usr/lib/python/xen/xend/XendNode.py",
 line 155, in physinfo 
Error: (13, 'Permission denied') 

[root@localhost xen]# cat xend-debug.log 
Xend started at Wed May 30 22:25:08 2007. 
sysctl operation failed -- need to rebuild the user-space tool set? 
Exception starting xend: (13, 'Permission denied') 

[root@localhost xen]# xm list 
Error: Unable to connect to xend: No such file or directory. Is xend running? 

-------------------------above is 
output----------------------------------------- 

what wrong with my xen?? look forward to your help and best regards. 

youhongy 
20070530

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