Is it your dream to install linux on your system? And you fullfilled that dream? And you used Linux and the space on the disk so much that you need to add e new hard drive?
Well.. this article will help you!
Prepare the disk
[root@server root]# fdisk /dev/hdb
Command (m for help): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-1860, default 1):
Using default value 1
Last cylinder or +size or +sizeM or +sizeK (1-1860, default 1860):
Using default value 1860
Command (m for help): t
Selected partition 1
Hex code (type L to list codes): 8e
Changed system type of partition 1 to 8e (Linux LVM)
Command (m for help): p
Disk /dev/hdb: 15.3 GB, 15303075840 bytes
255 heads, 63 sectors/track, 1860 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hdb1 1 1860 14940418+ 8e Linux LVM
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
Create the Logical Volume
[root@server root]# pvcreate /dev/hdb1
pvcreate — physical volume "/dev/hdb1" successfully created
[root@server root]# vgcreate Volume01 /dev/hdb1
vgcreate — INFO: using default physical extent size 4 MB
vgcreate — INFO: maximum logical volume size is 255.99 Gigabyte
vgcreate — doing automatic backup of volume group "Volume01"
vgcreate — volume group "Volume01" successfully created and activated
[root@server root]# vgdisplay
— Volume group —
VG Name Volume01
VG Access read/write
VG Status available/resizable
VG # 0
MAX LV 256
Cur LV 0
Open LV 0
MAX LV Size 255.99 GB
Max PV 256
Cur PV 1
Act PV 1
VG Size 14.24 GB
PE Size 4 MB
Total PE 3646
Alloc PE / Size 0 / 0
Free PE / Size 3646 / 14.24 GB
VG UUID fFqAUY-0cFJ-GwCk-0Muf-0goc-Hwzc-ouBR4B
[root@server root]# lvcreate -L 14.24G Volume01 -n LogVol01
lvcreate — rounding size up to physical extent boundary
lvcreate — doing automatic backup of "Volume01"
lvcreate — logical volume "/dev/Volume01/LogVol01" successfully created
[root@server root]# umount /WERK/
umount: /WERK: device is busy
[root@server root]# init 2
[root@server root]# umount /WERK/
[root@server root]# vgextend Volume01 /dev/hdc1
vgextend — INFO: maximum logical volume size is 255.99 Gigabyte
vgextend — doing automatic backup of volume group "Volume01"
vgextend — volume group "Volume01" successfully extended
[root@server root]# vgextend Volume01 /dev/hdd1
vgextend — INFO: maximum logical volume size is 255.99 Gigabyte
vgextend — doing automatic backup of volume group "Volume01"
vgextend — volume group "Volume01" successfully extended
[root@server root]# vgdisplay
— Volume group —
VG Name Volume01
VG Access read/write
VG Status available/resizable
VG # 0
MAX LV 256
Cur LV 1
Open LV 0
MAX LV Size 255.99 GB
Max PV 256
Cur PV 3
Act PV 3
VG Size 52.01 GB
PE Size 4 MB
Total PE 13315
Alloc PE / Size 3646 / 14.24 GB
Free PE / Size 9669 / 37.77 GB
VG UUID fFqAUY-0cFJ-GwCk-0Muf-0goc-Hwzc-ouBR4B
[root@server root]# lvextend -l +9669 /dev/Volume01/LogVol01 /dev/hdc1
lvextend — extending logical volume "/dev/Volume01/LogVol01" to 52.01 GB
lvextend — not enough free/allocatable physical extents to extend logical volume
"/dev/Volume01/LogVol01"
[root@server root]# lvextend -l +9669 /dev/Volume01/LogVol01 /dev/hdc1 /dev/hdd1
lvextend — extending logical volume "/dev/Volume01/LogVol01" to 52.01 GB
lvextend — doing automatic backup of volume group "Volume01"
lvextend — logical volume "/dev/Volume01/LogVol01" successfully extended
[root@server root]# vgdisplay
— Volume group —
VG Name Volume01
VG Access read/write
VG Status available/resizable
VG # 0
MAX LV 256
Cur LV 1
Open LV 0
MAX LV Size 255.99 GB
Max PV 256
Cur PV 3
Act PV 3
VG Size 52.01 GB
PE Size 4 MB
Total PE 13315
Alloc PE / Size 13315 / 52.01 GB
Free PE / Size 0 / 0
VG UUID fFqAUY-0cFJ-GwCk-0Muf-0goc-Hwzc-ouBR4B
[root@server root]# vi /etc/fstab
LABEL=/ / ext3 defaults 1 1
LABEL=/boot /boot ext3 defaults 1 2
none /dev/pts devpts gid=5,mode=620 0 0
none /proc proc defaults 0 0
none /dev/shm tmpfs defaults 0 0
/dev/hda2 swap swap defaults 0 0
LABEL=/WERK /WERK ext3 defaults 1 2
[root@server root]# mkfs -t ext3 /dev/Volume01/LogVol01
mke2fs 1.32 (09-Nov-2002)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
6818784 inodes, 13634560 blocks
681728 blocks (5.00%) reserved for the super user
First data block=0
417 block groups
32768 blocks per group, 32768 fragments per group
16352 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424
Writing inode tables: done
Creating journal (8192 blocks): done
Writing superblocks and filesystem accounting information: done
This filesystem will be automatically checked every 38 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.
[root@server root]# e2label /dev/Volume01/LogVol01 /WERK
Create single partition (instead of creating a logical volume)
[root@server root]# mkfs -t ext3 /dev/hdb1
[root@server root]# mkdir /mnt/hdb1
[root@server root]# mount /dev/hdb1 /mnt/hdb1
[root@server root]# vi /etc/fstab
# # File: /etc/fstab # /dev/hdb1 /mnt/hdb1 ext3 defaults 1 2
Copy data to create a new mounting point
If you created a new volume (on a second disk) and you want this to be the new /opt directory:
Mount the newly created volume temporarily to /mnt:
mount /dev/VolGroup01/LogVol01 /mnt
Copy the data from /opt to the new disk:
rsync -avu /opt/ /mnt/
mv /opt /opt_old
mkdir /opt
umount /mnt
vi /etc/fstab
/dev/mapper/VolGroup01-LogVol01 /opt ext4 defaults 1 1
reboot or mount -a
if you need to copy data from a directory and exclude one directory:
find /source_dir/* -not -type d -and -not -regex '\./dir/youneed/to_exclude/.*' -exec echo mv {} /destination/ \;
find /mnt/opt/* -not -type d -and -not -regex '\./mnt/opt/splunk/.*' -exec echo mv {} /mnt/opt/splunk/var/ \;
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