외부 USB 드라이브를 Raspberry Pi에 연결했습니다.

sudo lsblk -o UUID,NAME,FSTYPE,SIZE,MOUNTPOINT,LABEL,MODEL

UUID                                 NAME        FSTYPE   SIZE MOUNTPOINT LABEL  MODEL
                                     sda                931.5G                   SAMSUNG_HD103SJ
2d895223-03fe-422c-8266-2542b8f19787 └─sda1      ext4   931.5G
                                     mmcblk0             14.4G
9F2D-0578                            ├─mmcblk0p1 vfat     256M /boot      boot
efc2ea8b-042f-47f5-953e-577d8860de55 └─mmcblk0p2 ext4    14.2G /          rootfs

저는 다음과 같이 설치했습니다.

sudo mount /dev/sda1 /mnt/samsung

ls /mnt/samsung나를 위해 sample.jpg내부 파일을 나열했습니다 .

이 작업을 시도했지만 sudo umount /mnt/samsung오류가 발생했습니다.

umount: /mnt/samsung: not mounted.

어떻게 이럴 수있어?

PHP 스크립트에서 디스크에 액세스해야 하기 때문에 mnt/samsung디스크 소유권 도 변경했습니다 .chown www-data:www-data

거기에 있는 파일을 볼 수 있는데... 로컬인 것 같은데요? 디스크를 제거해도 내용은 mnt/samsung그대로 남아 있었습니다. 모든 파일이 그대로 남아 있었습니다.

다음 줄을 추가한 후 다시 시작하려고 했지만 /etc/fstab결과가 없습니다.

UUID=2d895223-03fe-422c-8266-2542b8f19787 /mnt/samsung ext4 defaults,auto,nofail,umask=000,allow_$

이 mount명령은 다음을 반환합니다.

/dev/mmcblk0p2 on / type ext4 (rw,noatime)
devtmpfs on /dev type devtmpfs (rw,relatime,size=1873872k,nr_inodes=117736,mode=755)
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,relatime)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,nodev,mode=755)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup2 on /sys/fs/cgroup/unified type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,name=systemd)
bpf on /sys/fs/bpf type bpf (rw,nosuid,nodev,noexec,relatime,mode=700)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/net_cls type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=27,pgrp=1,timeout=0,minproto=5,maxproto=5,direct)
mqueue on /dev/mqueue type mqueue (rw,relatime)
sunrpc on /run/rpc_pipefs type rpc_pipefs (rw,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
configfs on /sys/kernel/config type configfs (rw,relatime)
/dev/mmcblk0p1 on /boot type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,errors=remount-ro)
tmpfs on /run/user/1000 type tmpfs (rw,nosuid,nodev,relatime,size=401192k,mode=700,uid=1000,gid=1000)