[root@skyeye ~]# mkfs.ext4 /dev/raid5/raid5
mke2fs 1.41.12 (17-May-2010)
/dev/raid5/raid5 is apparently in use by the system; will not make a filesystem here!
格式化提示在使用中！
[root@skyeye ~]# mount -a
mount: special device UUID="7361922f-e2ef-4f00-8f40-0becdf71061a" does not exist
mount: special device UUID="8cc9a030-e741-4b1e-816a-970f150e8950" does not exist
mount: special device UUID="f65dda8f-d344-4e1b-8b46-678c194cb7ed" does not exist
mount: special device UUID="76c2b47f-3267-4c32-a333-214496614875" does not exist
mount: special device UUID="06d2b85a-2344-4f1a-8760-5001c0a27beb" does not exist
mount: special device UUID="85b91ea4-b71d-4527-ad68-76617fab357b" does not exist
[root@skyeye ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol03
99G 63G 31G 67% /
tmpfs 127G 0 127G 0% /dev/shm
/dev/mapper/VolGroup00-LogVol01
99G 168M 94G 1% /tmp
/dev/mapper/VolGroup00-LogVol02
130G 33G 91G 27% /var
/dev/mapper/VolGroup00-LogVolopt
32G 11G 20G 35% /opt
/dev/mapper/vg0-lv0 3.5T 1.8T 1.6T 53% /lv0
/dev/sdd 3.6T 3.2T 243G 94% /data2
/dev/sdg 3.6T 3.2T 233G 94% /data5
/dev/mapper/truecrypt1
9.9G 4.1G 5.3G 44% /opt/work
/dev/sda1 194M 57M 128M 31% /boot
/dev/mapper/VolGroup00-LogVoldata
316G 344M 300G 1% /data
/dev/sde 3.6T 3.2T 232G 94% /data3
/dev/sdf 3.6T 3.2T 227G 94% /data4
[root@skyeye ~]# mount /dev/raid5/raid5 /data4
mount: you must specify the filesystem type
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