1. 외장하드 포맷 및 마운트(언마운트후 포맷해야 함)
pi@raspberrypi:~ $ sudo mkfs.ext4 /dev/sda
mke2fs 1.44.5 (15-Dec-2018)
/dev/sda contains a ext4 file system
last mounted on Sat Feb 29 16:21:13 2020
Proceed anyway? (y,N) y
Creating filesystem with 31258710 4k blocks and 7815168 inodes
Filesystem UUID: ee8dcf40-db20-44c7-a9d5-c66006a95cdf
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872
Allocating group tables: done
Writing inode tables: done
Creating journal (131072 blocks):
done
Writing superblocks and filesystem accounting information:
done
pi@raspberrypi:~ $ 2. 파티션(참조:https://paranwater.tistory.com/418)
위 명령에서 이어 계속 fdisk를 실행하고 있는 상태 입니다
Command (m for help): n <---- 새 파티션 생성 명령
Partition type:
p primary (0 primary, 0 extended, 4 free)
e extended
Select (default p): p <---- p타입으로 명령
Partition number (1-4, default 1): 1
First sector (2048-976773167, default 2048): 2048 <---- 파티션 시작값을 적음
Last sector, +sectors or +size{K,M,G} (2048-976773167, default 976773167): 9767731 <---- 피티션 끝 값을 적음
시작 값과 끝 값으로 용량이 정해 집니다
Command (m for help): n <---- 다시한번 새로운 파티션을 만드는 명령
Partition type:
p primary (1 primary, 0 extended, 3 free)
e extended
Select (default p): p <---- p타입으로 명령
Partition number (1-4, default 2): 2
First sector (9767732-976773167, default 9767732): 9767732 <---- 두번째 파티션 시작 위치
Last sector, +sectors or +size{K,M,G} (9767732-976773167, default 976773167): 976773167 <---- 두번째 파티션 끝나는 위치
Command (m for help): w <---- 저장 (fdisk종료됨)
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.
root@raspberrypi:/#pi@raspberrypi:~ $ sudo fdisk /dev/sda
Welcome to fdisk (util-linux 2.33.1).
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: 119.2 GiB, 128035676160 bytes, 250069680 sectors
Disk model: Generic
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: 0x1cd5629c
Device Boot Start End Sectors Size Id Type
/dev/sda1 2048 250069679 250067632 119.2G 83 Linux
Command (m for help):
3. 자동 마운트
/etc/fstab 에 마운트하는 추가해 주면 알아서 마운트가 된다고 해서 해 봤는데, 현실은 부팅이 안됨 ㅠㅠ
다시 알아봄(참조 : http://www.rasplay.org/?p=4854)
마운트된것을 확인하고, /etc/rc.local 파일을 아래와 같이 수정함
pi@raspberrypi:~ $ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/root 29G 6.3G 22G 23% /
devtmpfs 459M 0 459M 0% /dev
tmpfs 464M 0 464M 0% /dev/shm
tmpfs 464M 6.3M 457M 2% /run
tmpfs 5.0M 4.0K 5.0M 1% /run/lock
tmpfs 464M 0 464M 0% /sys/fs/cgroup
/dev/mmcblk0p1 253M 53M 200M 21% /boot
/dev/sda1 117G 61M 111G 1% /home/pi/SDD
tmpfs 93M 0 93M 0% /run/user/1000
pi@raspberrypi:~ $ cd dev/sda1
bash: cd: dev/sda1: 그런 파일이나 디렉터리가 없습니다
pi@raspberrypi:~ $ cd /dev/sda1
bash: cd: /dev/sda1: 디렉터리가 아닙니다
pi@raspberrypi:~ $ cd /home/pi/SDD
pi@raspberrypi:~/SDD $ ls
lost+found
pi@raspberrypi:~/SDD $ sudo nano /etc/rc.local
pi@raspberrypi:~/SDD $
#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.
# Print the IP address
_IP=$(hostname -I) || true
if [ "$_IP" ]; then
printf "My IP address is %s\n" "$_IP"
fi
# ADD
sudo mount /dev/sda1 /home/pi/SDD
exit 0
재부팅하니 잘 잡힘
