라즈베리파이 리눅스 파티션 조절

8기가 메모리에 라즈베리파이를 설치했는데

 

알고보니 2기가만 쓰고있었다는 사실.

 

root@raspberrypi:/# df -h
Filesystem      Size  Used Avail Use% Mounted on
rootfs          1.8G  1.7G     0 100% /
/dev/root       1.8G  1.7G     0 100% /
devtmpfs        116M     0  116M   0% /dev
tmpfs            25M  244K   25M   1% /run
tmpfs           5.0M     0  5.0M   0% /run/lock
tmpfs            50M     0   50M   0% /run/shm
/dev/mmcblk0p1   56M   19M   38M  33% /boot
tmpfs            50M     0   50M   0% /tmp

파티션 리스트를 확인하고

 

root@raspberrypi:/# fdisk -l

Disk /dev/mmcblk0: 7948 MB, 7948206080 bytes
4 heads, 16 sectors/track, 242560 cylinders, total 15523840 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 identifier: 0x000c7b31

        Device Boot      Start         End      Blocks   Id  System
/dev/mmcblk0p1            8192      122879       57344    c  W95 FAT32 (LBA)
/dev/mmcblk0p2          122880     3788799     1832960   83  Linux

fdisk를 실행한다.

 

root@raspberrypi:/# fdisk -u -c /dev/mmcblk0

delete - 파티션2 - new - primary - 파티션2 - 시작섹터~종료섹터 순서로 입력한다.

 

Command (m for help): d
Partition number (1-4): 2

Command (m for help): n
Partition type:
   p   primary (1 primary, 0 extended, 3 free)
   e   extended
Select (default p): p
Partition number (1-4, default 2): 2
First sector (2048-15523839, default 2048): 122880
Last sector, +sectors or +size{K,M,G} (122880-15523839, default 15523839): 15523839

 

그냥 enter 치면 default로 자동세팅된다.

 

저장하고 종료

 

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: Device or resource busy.
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.

그리고 재부팅.

 

파티션 재인식후 확인.

 

root@raspberrypi:~# resize2fs /dev/mmcblk0p2
resize2fs 1.42.5 (29-Jul-2012)
Filesystem at /dev/mmcblk0p2 is mounted on /; on-line resizing required
old_desc_blocks = 1, new_desc_blocks = 1
The filesystem on /dev/mmcblk0p2 is now 1925120 blocks long.

root@raspberrypi:~# df -h
Filesystem      Size  Used Avail Use% Mounted on
rootfs          7.3G  1.7G  5.3G  25% /
/dev/root       7.3G  1.7G  5.3G  25% /
devtmpfs        116M     0  116M   0% /dev
tmpfs            25M  240K   25M   1% /run
tmpfs           5.0M     0  5.0M   0% /run/lock
tmpfs            50M     0   50M   0% /run/shm
/dev/mmcblk0p1   56M   19M   38M  33% /boot
tmpfs            50M     0   50M   0% /tmp

끝.