Increasing size of LVM root partition issue

rohit09

Well-Known Member
Dec 10, 2010
61
0
56
I had a one goal to mount 2 HDD at one place - at root

Apache config:
[[email protected] ~]# fdisk -l

Disk /dev/sdb: 250.0 GB, 250000000000 bytes, 488281250 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x000f2d2b

   Device Boot      Start         End      Blocks   Id  System

Disk /dev/sda: 250.0 GB, 250000000000 bytes, 488281250 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x0003957e

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1            2048        4095        1024   83  Linux
/dev/sda2   *        4096     2101247     1048576   83  Linux
/dev/sda3         2101248   488280063   243089408   8e  Linux LVM

Disk /dev/mapper/vg-root: 239.4 GB, 239385706496 bytes, 467550208 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/mapper/vg-swap: 8455 MB, 8455716864 bytes, 16515072 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/mapper/vg-tmp: 1073 MB, 1073741824 bytes, 2097152 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

[[email protected] ~]# fdisk /dev/sdb
Welcome to fdisk (util-linux 2.23.2).

Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.


Command (m for help): n
Partition type:
   p   primary (0 primary, 0 extended, 4 free)
   e   extended
Select (default p): p
Partition number (1-4, default 1):
First sector (2048-488281249, default 2048):
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-488281249, default 488281249):
Using default value 488281249
Partition 1 of type Linux and of size 232.8 GiB is set

Command (m for help): t
Selected partition 1
Hex code (type L to list all codes): l

 0  Empty           24  NEC DOS         81  Minix / old Lin bf  Solaris
 1  FAT12           27  Hidden NTFS Win 82  Linux swap / So c1  DRDOS/sec (FAT-
 2  XENIX root      39  Plan 9          83  Linux           c4  DRDOS/sec (FAT-
 3  XENIX usr       3c  PartitionMagic  84  OS/2 hidden C:  c6  DRDOS/sec (FAT-
 4  FAT16 <32M      40  Venix 80286     85  Linux extended  c7  Syrinx
 5  Extended        41  PPC PReP Boot   86  NTFS volume set da  Non-FS data
 6  FAT16           42  SFS             87  NTFS volume set db  CP/M / CTOS / .
 7  HPFS/NTFS/exFAT 4d  QNX4.x          88  Linux plaintext de  Dell Utility
 8  AIX             4e  QNX4.x 2nd part 8e  Linux LVM       df  BootIt
 9  AIX bootable    4f  QNX4.x 3rd part 93  Amoeba          e1  DOS access
 a  OS/2 Boot Manag 50  OnTrack DM      94  Amoeba BBT      e3  DOS R/O
 b  W95 FAT32       51  OnTrack DM6 Aux 9f  BSD/OS          e4  SpeedStor
 c  W95 FAT32 (LBA) 52  CP/M            a0  IBM Thinkpad hi eb  BeOS fs
 e  W95 FAT16 (LBA) 53  OnTrack DM6 Aux a5  FreeBSD         ee  GPT
 f  W95 Ext'd (LBA) 54  OnTrackDM6      a6  OpenBSD         ef  EFI (FAT-12/16/
10  OPUS            55  EZ-Drive        a7  NeXTSTEP        f0  Linux/PA-RISC b
11  Hidden FAT12    56  Golden Bow      a8  Darwin UFS      f1  SpeedStor
12  Compaq diagnost 5c  Priam Edisk     a9  NetBSD          f4  SpeedStor
14  Hidden FAT16 <3 61  SpeedStor       ab  Darwin boot     f2  DOS secondary
16  Hidden FAT16    63  GNU HURD or Sys af  HFS / HFS+      fb  VMware VMFS
17  Hidden HPFS/NTF 64  Novell Netware  b7  BSDI fs         fc  VMware VMKCORE
18  AST SmartSleep  65  Novell Netware  b8  BSDI swap       fd  Linux raid auto
1b  Hidden W95 FAT3 70  DiskSecure Mult bb  Boot Wizard hid fe  LANstep
1c  Hidden W95 FAT3 75  PC/IX           be  Solaris boot    ff  BBT
1e  Hidden W95 FAT1 80  Old Minix
Hex code (type L to list all codes): 8e
Changed type of partition 'Linux' to 'Linux LVM'

Command (m for help): w
The partition table has been altered!

Calling ioctl() to re-read partition table.
Syncing disks.
[[email protected] ~]# pvcreate /dev/sdb1
  Physical volume "/dev/sdb1" successfully created.
[[email protected] ~]# vgdisplay
  --- Volume group ---
  VG Name               vg
  System ID
  Format                lvm2
  Metadata Areas        1
  Metadata Sequence No  4
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                3
  Open LV               3
  Max PV                0
  Cur PV                1
  Act PV                1
  VG Size               231.82 GiB
  PE Size               4.00 MiB
  Total PE              59347
  Alloc PE / Size       59346 / 231.82 GiB
  Free  PE / Size       1 / 4.00 MiB
  VG UUID               sL09RM-2MWG-cmDQ-5gew-xFqN-zzoS-QTbyJY

[[email protected] ~]# vgextend vg /dev/sdb1
  Volume group "vg" successfully extended
[[email protected] ~]# df -h
Filesystem           Size  Used Avail Use% Mounted on
/dev/mapper/vg-root  220G  1.1G  208G   1% /
devtmpfs             7.8G     0  7.8G   0% /dev
tmpfs                7.8G     0  7.8G   0% /dev/shm
tmpfs                7.8G  8.7M  7.8G   1% /run
tmpfs                7.8G     0  7.8G   0% /sys/fs/cgroup
/dev/sda2           1008M  119M  838M  13% /boot
/dev/mapper/vg-tmp   976M  2.6M  907M   1% /tmp
tmpfs                1.6G     0  1.6G   0% /run/user/0
[[email protected] ~]# resize2fs /dev/vg/root
resize2fs 1.42.9 (28-Dec-2013)
The filesystem is already 58443776 blocks long.  Nothing to do!

[[email protected] ~]# df -h
Filesystem           Size  Used Avail Use% Mounted on
/dev/mapper/vg-root  220G  1.1G  208G   1% /
devtmpfs             7.8G     0  7.8G   0% /dev
tmpfs                7.8G     0  7.8G   0% /dev/shm
tmpfs                7.8G  8.7M  7.8G   1% /run
tmpfs                7.8G     0  7.8G   0% /sys/fs/cgroup
/dev/sda2           1008M  119M  838M  13% /boot
/dev/mapper/vg-tmp   976M  2.6M  907M   1% /tmp
tmpfs                1.6G     0  1.6G   0% /run/user/0
[[email protected] ~]# ^C
[[email protected] ~]# df -Th /dev/mapper/vg-root
Filesystem          Type  Size  Used Avail Use% Mounted on
/dev/mapper/vg-root ext4  220G  1.1G  208G   1% /
[[email protected] ~]#
Im pretty much stuck here
 

cPanelMichael

Technical Support Community Manager
Staff member
Apr 11, 2011
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DataCenter Provider
Twitter
Hello @rohit09,

We recommend consulting with an experienced system administrator or system administration service provider if you are unfamiliar with disk size manipulation due to the potential for data loss if you execute the wrong command. You can find a list of SafeAdmin certified providers on the link below:


If you're looking for general information about how to resize a partition, please include more information about your server environment:

Code:
 cat /var/cpanel/envtype
 cat /etc/redhat-release
Thank you.