라즈베리파이 파티션 설정

라즈베리파이 이미지를 구우면 파티션 용량이 sd카드의 전체로 설정되지 않음

 

1. 라즈베리파이 파일 시스템 사용량 확인 (4G sd카드인데 용량이 이상함..)

   $ df -h Filesystem      Size  Used Avail Use% Mounted on /dev/root       1.2G  860M  246M  78% / devtmpfs        214M     0  214M   0% /dev tmpfs           218M     0  218M   0% /dev/shm tmpfs           218M  4.4M  214M   2% /run tmpfs           5.0M  4.0K  5.0M   1% /run/lock tmpfs           218M     0  218M   0% /sys/fs/cgroup /dev/mmcblk0p1   60M   20M   41M  34% /boot

2. 파티션 확인하기

   $ sudo fdisk -l /dev/mmcblk0p1        8192  131071  122880   60M  c W95 FAT32 (LBA) /dev/mmcblk0p2      131072 7744511 7613440  3.6G 83 Linux

3. 파티션 확인 하기 fdisk에서 p

   $ sudo fdisk -u -c /dev/mmcblk0    Welcome to fdisk (util-linux 2.25.2). 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/mmcblk0: 3.7 GiB, 3965190144 bytes, 7744512 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 Disklabel type: dos Disk identifier: 0x6f92008e   Device         Boot  Start     End Sectors  Size Id Type /dev/mmcblk0p1        8192  131071  122880   60M  c W95 FAT32 (LBA) /dev/mmcblk0p2      131072 7744511 7613440  3.6G 83 Linux

4. 파티션 2 지우기 (d → 2)

   Command (m for help): d Partition number (1,2, default 2): 2   Partition 2 has been deleted.

5. 파티션 새로 만들기 (n → p → 2) 저장은 w

   시작 섹터는 파티션 1 이후인 131072, 끝은 default Command (m for help): n Partition type    p   primary (1 primary, 0 extended, 3 free)    e   extended (container for logical partitions) Select (default p): p Partition number (2-4, default 2): 2 First sector (2048-7744511, default 2048): 131072 Last sector, +sectors or +size{K,M,G,T,P} (131072-7744511, default 7744511): 7744511   Created a new partition 2 of type 'Linux' and of size 3.6 GiB.   Command (m for help): w

6. 파티션 재설정 후 확인.(바쁘다고 나오면 재부팅 후 다시 실행)

   $ sudo resize2fs /dev/mmcblk0p2 resize2fs 1.42.12 (29-Aug-2014) 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 951680 (4k) blocks long.    $ df -h Filesystem      Size  Used Avail Use% Mounted on /dev/root       3.6G  861M  2.6G  25% / devtmpfs        214M     0  214M   0% /dev tmpfs           218M     0  218M   0% /dev/shm tmpfs           218M  4.4M  214M   2% /run tmpfs           5.0M  4.0K  5.0M   1% /run/lock tmpfs           218M     0  218M   0% /sys/fs/cgroup /dev/mmcblk0p1   60M   20M   41M  34% /boot