bug grub

[root]

/usr/sbin/grub-probe: info: Cannot stat 
`/dev/disk/by-id/ata-WDC_WD5000BEVT-00A0RT0_WD-WXE1A20R6903', skipping.
/usr/sbin/grub-probe: info: Cannot stat 
`/dev/disk/by-id/ata-WDC_WD5000BEVT-16A0RT0_WD-WX91A21U2002', skipping.
/usr/sbin/grub-probe: info: Cannot stat 
`/dev/disk/by-id/ata-WDC_WD5000BEVT-22A0RT0_WD-WX61A20F5158', skipping.
/usr/sbin/grub-probe: info: Cannot stat 
`/dev/disk/by-id/ata-WDC_WD5000BEVT-00A0RT0_WD-WXQ0A99A6850', skipping.
/usr/sbin/grub-probe: info: changing current directory to /dev.
/usr/sbin/grub-probe: info: changing current directory to snd.
/usr/sbin/grub-probe: info: changing current directory to net.
/usr/sbin/grub-probe: info: changing current directory to shm.
/usr/sbin/grub-probe: info: changing current directory to amavis.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T184822-28369.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T184726-14362.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T184432-13017.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T184425-14089.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T184222-12879.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T183913-11267.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T183138-08175.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T182835-07335.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T182834-07118.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T182253-02912.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T182158-04772.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T181846-03101.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T181825-02933.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T181806-02973.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T181741-01298.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T181705-00911.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T181703-02411.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T181525-01494.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T181414-00435.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T181302-00407.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T181219-32637.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T181203-32303.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T181120-31440.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T181021-30796.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T181017-31327.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T180820-29729.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T180743-29602.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T180701-29554.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T180648-29234.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T180636-29473.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T180449-28182.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T180443-28068.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T180337-27153.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T180256-27178.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T180039-25734.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T175736-24913.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T175714-24952.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T175553-23347.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T175521-23817.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T175352-23290.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T175336-23001.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T175235-22811.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T175211-22468.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T174605-18570.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T174425-16201.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T174254-17000.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T173949-15528.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T173826-14418.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to 
amavis-20111012T173449-12210.
/usr/sbin/grub-probe: info: changing current directory to parts.
/usr/sbin/grub-probe: info: changing current directory to vg0.
/usr/sbin/grub-probe: info: changing current directory to mapper.
/usr/sbin/grub-probe: info: opening md0.
/usr/sbin/grub-probe: error: no such disk.