Debian 6 messages mdadm au boot

Bonjour,

j'ai pris récemment un serveur dédié chez 1and1 livré avec une debian lenny que j'ai passé à squeeze, jusque là tout va bien, mais au démarrage - je ne sais pas si ça le faisait avant - j'ai plusieurs messages de mdadm successifs :

mdadm: excess host name on HOMEHOST line: <system> - ignored 
mdadm: /dev/md1 has been started with 2 drives. 
mdadm: /dev/md3 has been started with 2 drives. 


/etc/init.d/mdadm-raid: 259: logger: not found 

Starting MD monitoring service: mdadm --monitormdadm: Unknown keyword partitions 
mdadm: Unknown keyword owner=root 
mdadm: Unknown keyword <system> 
mdadm: Unknown keyword root

Contenu du fichier mdadm.conf rempli à l'aide de mkconf :

# mdadm.conf 
# 
# Please refer to mdadm.conf(5) for information about this file. 
# 

# by default, scan all partitions (/proc/partitions) for MD superblocks. 
# alternatively, specify devices to scan, using wildcards if desired. 
DEVICE partitions 
partitions 

# auto-create devices with Debian standard permissions 
CREATE owner=root group=disk mode=0660 auto=yes 
owner=root group=disk mode=0660 auto=yes 

# automatically tag new arrays as belonging to the local system 
HOMEHOST <system> 
<system> 

# instruct the monitoring daemon where to send mail alerts 
MAILADDR root 
root 

# definitions of existing MD arrays 
ARRAY /dev/md1 UUID=85bbdbc2:f7cf3a03:3fb6082e:e5593158 
ARRAY /dev/md3 UUID=07a63747:89975822:3fb6082e:e5593158 

# This configuration was auto-generated on Sun, 27 Mar 2011 17:12:35 +0200 
# by mkconf 3.1.4-1+8efb9d1