파티션 SIZE 늘리기

 

여기, 여기에서 참고

 

CentOS 7에서 진행

 

- 현재 정보

[root@localhost]# fdisk -l   Disk /dev/sda: 17.2 GB, 17179869184 bytes, 33554432 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: 0x000ad9af      Device Boot      Start         End      Blocks   Id  System /dev/sda1   *        2048     2099199     1048576   83  Linux /dev/sda2         2099200    33554431    15727616   83  Linux   Disk /dev/mapper/cl-root: 6652 MB, 6652166144 bytes, 12992512 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/cl-swap: 859 MB, 859832320 bytes, 1679360 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

 

- 파티션 제거 및 생성으로 Size 추가(데이터가 제거되지 않으나 혹시 모르니 실린더 Start 번호를 확인한다.)

[root@test-linux ~]# fdisk /dev/sda 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): p   Disk /dev/sda: 17.2 GB, 17179869184 bytes, 33554432 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: 0x0006b583      Device Boot      Start         End      Blocks   Id  System /dev/sda1   *        2048     2099199     1048576   83  Linux /dev/sda2         2099200    16777215     7339008   8e  Linux LVM   Command (m for help): d Partition number (1,2, default 2): 2 Partition 2 is deleted   Command (m for help): n Partition type:    p   primary (1 primary, 0 extended, 3 free)    e   extended Select (default p): p Partition number (2-4, default 2): 2 First sector (2099200-33554431, default 2099200):  Using default value 2099200 Last sector, +sectors or +size (2099200-33554431, default 33554431):  Using default value 33554431 Partition 2 of type Linux and of size 15 GiB is set   Command (m for help): w The partition table has been altered!   Calling ioctl() to re-read partition table.   WARNING: Re-reading the partition table failed with error 16: 장치나 자원이 동작 중. The kernel still uses the old table. The new table will be used at the next reboot or after you run partprobe(8) or kpartx(8) Syncing disks.

 

- 재부팅 후 진행하라고 하니 재부팅

[root@test-linux ~]# reboot -- 재부팅 후 --

 

- PV Resize

[root@localhost]# pvresize /dev/sda2    <-- volume resize   Physical volume "/dev/sda2" changed   1 physical volume(s) resized / 0 physical volume(s) not resized

 

- PV 확인

[root@localhost]# pvscan    <-- volume check   PV /dev/sda2   VG cl              lvm2 [<15.00 GiB / 8.00 GiB free]   Total: 1 [<15.00 GiB] / in use: 1 [<15.00 GiB] / in no VG: 0 [0   ]

 

- LV 확장

[root@localhost]# lvextend -l +100%FREE /dev/mapper/cl-root    <-- volume extend   Size of logical volume cl/root changed from <6.20 GiB (1586 extents) to <14.20 GiB (3634 extents).   Logical volume cl/root successfully resized.

 

- 파티션 확장

xfs 의 경우 xfs_growfs을 사용하고 이 외의 경우에는 resize2fs 를 사용한다.

[root@localhost]# resize2fs /dev/mapper/cl-root    <-- CentOS7에서는 파일 시스템이 xfs라서 아래의 명령으로 진행 resize2fs 1.42.9 (28-Dec-2013) resize2fs: Bad magic number in super-block while trying to open /dev/mapper/cl-root Couldn't find valid filesystem superblock.   [root@localhost]# xfs_growfs /dev/mapper/cl-root meta-data=/dev/mapper/cl-root    isize=512    agcount=4, agsize=406016 blks          =                       sectsz=512   attr=2, projid32bit=1          =                       crc=1        finobt=0 spinodes=0 data     =                       bsize=4096   blocks=1624064, imaxpct=25          =                       sunit=0      swidth=0 blks naming   =version 2              bsize=4096   ascii-ci=0 ftype=1 log      =internal               bsize=4096   blocks=2560, version=2          =                       sectsz=512   sunit=0 blks, lazy-count=1 realtime =none                   extsz=4096   blocks=0, rtextents=0 data blocks changed from 1624064 to 3721216

 

- 파티션 확인

[root@localhost]# df -k Filesystem          1K-blocks    Used Available Use% Mounted on /dev/mapper/cl-root  14874624 6472764   8401860  44% / devtmpfs               930700       0    930700   0% /dev tmpfs                  941580       0    941580   0% /dev/shm tmpfs                  941580    8468    933112   1% /run tmpfs                  941580       0    941580   0% /sys/fs/cgroup /dev/sda1             1038336  188668    849668  19% /boot tmpfs                  188320       0    188320   0% /run/user/10000