How to create mount point in Oracle Enterprise Linux
This section shows you that how to create mount
point for a newly attached hard disk in OELinux/Linux
1. Check the file system
[root@chromepro ~]# fdisk -l
Disk /dev/sda: 26.8
GB, 26843545600 bytes
255 heads, 63
sectors/track, 3263 cylinders
Units = cylinders of
16065 * 512 = 8225280 bytes
Device Boot Start End Blocks
Id System
/dev/sda1 *
1 13 104391
83 Linux
/dev/sda2 14 1288
10241437+ 83 Linux
/dev/sda3 1289 1925
5116702+ 83 Linux
/dev/sda4 1926 3263
10747485 5 Extended
/dev/sda5 1926 3263
10747453+ 8e Linux LVM
2. Add a new hard disk
Now add a new hard disk or a disk in system. (Ignore
this if you already added & go to Step:4)
3. restart the system to scan the newly added disk
to add
Restart the system to scan the new hard disk or
a disk by OS level. (Ignore this if you already added & go to Step:4)
[root@chromepro ~]#
init 6
Note
: If you don’t want to restart the System, enter following command..
echo " - - - "
>/sys/class/scsi_host/host0/scan
4. Check the new disk is added or not
[root@chromepro ~]# fdisk -l
Disk /dev/sda: 26.8
GB, 26843545600 bytes
255 heads, 63
sectors/track, 3263 cylinders
Units = cylinders of
16065 * 512 = 8225280 bytes
Device Boot Start
End Blocks
Id System
/dev/sda1 *
1 13 104391
83 Linux
/dev/sda2 14 1288
10241437+ 83 Linux
/dev/sda3 1289 1925
5116702+ 83 Linux
/dev/sda4 1926 3263
10747485 5 Extended
/dev/sda5 1926 3263
10747453+ 8e Linux LVM
Disk /dev/sdb: 10.7
GB, 10737418240 bytes
255 heads, 63
sectors/track, 1305 cylinders
Units = cylinders of
16065 * 512 = 8225280 bytes
Disk /dev/sdb doesn't
contain a valid partition table
[root@chromepro ~]# cat
/proc/partitions
major minor #blocks
name
8
0 26214400 sda
8
1 104391 sda1
8
2 10241437 sda2
8
3 5116702 sda3
8
4 1 sda4
8
5 10747453 sda5
8
16 10485760 sdb
253
0 8486912 dm-0
253
1 2228224 dm-1
5. Create Partition for new disk
[root@chromepro ~]# fdisk /dev/sdb
The number of
cylinders for this disk is set to 1305.
There is nothing wrong
with that, but this is larger than 1024,
and could in certain
setups cause problems with:
1) software that runs
at boot time (e.g., old versions of LILO)
2) booting and
partitioning software from other OSs
(e.g., DOS FDISK, OS/2 FDISK)
Command (m for help):
n
Command action
e
extended
p
primary partition (1-4)
p
Partition number
(1-4): 1
First cylinder
(1-1305, default 1):
Using default value 1
Last cylinder or +size
or +sizeM or +sizeK (1-1305, default 1305):
Using default value
1305
Command (m for help):
w
The partition table
has been altered!
Calling ioctl() to
re-read partition table.
Syncing disks.
6. Check it is successfully partitioned
[root@chromepro ~]# fdisk -l
Disk /dev/sda: 26.8
GB, 26843545600 bytes
255 heads, 63
sectors/track, 3263 cylinders
Units = cylinders of
16065 * 512 = 8225280 bytes
Device Boot Start End Blocks
Id System
/dev/sda1 *
1 13 104391
83 Linux
/dev/sda2 14 1288
10241437+ 83 Linux
/dev/sda3 1289 1925
5116702+ 83 Linux
/dev/sda4 1926 3263
10747485 5 Extended
/dev/sda5 1926 3263
10747453+ 8e Linux LVM
Disk /dev/sdb: 10.7
GB, 10737418240 bytes
255 heads, 63
sectors/track, 1305 cylinders
Units = cylinders of
16065 * 512 = 8225280 bytes
Device Boot Start End Blocks
Id System
/dev/sdb1 1 1305
10482381 83 Linux
7. Check file is created or not in “/dev” location
[root@chromepro ~]# ls /dev/sd*
/dev/sda /dev/sda1
/dev/sda2 /dev/sda3 /dev/sda4
/dev/sda5 /dev/sdb /dev/sdb1
8. Format the disk as per linux file system with
block allocation
[root@chromepro ~]# mkfs.ext3 -b
4096 /dev/sdb
mke2fs 1.39
(29-May-2006)
/dev/sdb is entire
device, not just one partition!
Proceed anyway? (y,n)
y
Filesystem label=
OS type: Linux
Block size=4096
(log=2)
Fragment size=4096
(log=2)
1310720 inodes,
2621440 blocks
131072 blocks (5.00%)
reserved for the super user
First data block=0
Maximum filesystem
blocks=2684354560
80 block groups
32768 blocks per
group, 32768 fragments per group
16384 inodes per group
Superblock backups
stored on blocks:
32768, 98304, 163840, 229376, 294912,
819200, 884736, 1605632
Writing inode tables:
done
Creating journal
(32768 blocks): done
Writing superblocks
and filesystem accounting information: done
This filesystem will
be automatically checked every 22 mounts or
180 days, whichever
comes first. Use tune2fs -c or -i to
override.
9. Enter in “/etc/fstab” for automatic mount
[root@chromepro ~]# cat /etc/fstab
/dev/VolGroup00/LogVol00
/ ext3 defaults 1 1
LABEL=/u02 /u02 ext3 defaults 1 2
LABEL=/u01 /u01 ext3 defaults 1 2
LABEL=/boot /boot ext3 defaults 1 2
tmpfs /dev/shm tmpfs defaults 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
sysfs /sys sysfs defaults 0 0
proc /proc proc defaults 0 0
/dev/VolGroup00/LogVol01
swap swap defaults 0 0
[root@chromepro ~]# vi /etc/fstab
/dev/VolGroup00/LogVol00
/ ext3 defaults 1 1
LABEL=/u02 /u02 ext3
defaults 1 2
LABEL=/u01 /u01 ext3 defaults 1 2
LABEL=/boot /boot ext3 defaults 1 2
tmpfs /dev/shm tmpfs defaults
0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
sysfs /sys sysfs defaults 0 0
proc /proc proc defaults 0 0
/dev/VolGroup00/LogVol01
swap swap defaults 0 0
/dev/sdb /u03 ext3 defaults 1 1
[root@chromepro ~]# cat /etc/fstab
/dev/VolGroup00/LogVol00
/ ext3 defaults 1 1
LABEL=/u02 /u02 ext3 defaults 1 2
LABEL=/u01 /u01 ext3 defaults 1 2
LABEL=/boot /boot ext3 defaults 1 2
tmpfs /dev/shm tmpfs defaults 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
sysfs /sys sysfs defaults 0 0
proc /proc proc defaults 0 0
/dev/VolGroup00/LogVol01
swap swap defaults 0 0
/dev/sdb /u03 ext3 defaults 1 1
10. Make directory for mount point
[root@chromepro ~]# mkdir -p /u03
11. Mount the new file to “/u03”
[root@chromepro ~]# mount /dev/sdb
/u03
12. Check the mount point is working or not
[root@chromepro ~]# df -hk
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
8220860 3276888
4519628 43% /
/dev/sda3 4956316 3916068
784416 84% /u02
/dev/sda2 9920624 5827120
3581436 62% /u01
/dev/sda1 101086 12145
83722 13% /boot
tmpfs 556160 0
556160 0% /dev/shm
/dev/sdb 10321208 154236
9642684 2% /u03
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