외부 DVD 드라이브를 연결하면 ls, sudo, 새 SSH 연결이 거부됩니다. 무슨 일이 일어나고 있는 걸까요?

제목이 모든 것을 말해줍니다. 하지만 외부 DVD 드라이브를 Raspbian을 실행하는 Raspberry Pi에 연결했습니다. 리눅스와 호환된다고 하네요

하지만 실제로 장치에 연결하면. 모든 것이 이해할 수 없는 방식으로 잘못되어 가고 있습니다.

SSH는 "kex_exchange_identification: 읽기: 피어에 의해 연결이 재설정되었습니다. 192.168.50.2 포트 22에 의해 연결이 재설정되었습니다"라고 말합니다.

또는 "ls"를 실행하면 "-bash: /usr/bin/ls: 입력/출력 오류"라고 표시됩니다.

또는 "sudo"를 실행하면 "-bash: sudo: 명령을 찾을 수 없습니다"라고 표시됩니다.

삽입해도 실제 효과는 없습니다.

그러나 RaspberryPi를 재부팅했을 때 DVD 드라이브를 연결하기 전까지는 모든 것이 괜찮았습니다.

무슨 일이야? 너무 많은 명령이 꺼져 있는 경우 이 문제를 어떻게 해결하거나 수정할 수 있습니까? 무슨 일이 일어날 수 있었나요?

설문조사 업데이트 $PATH 전후 /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/local/games:/usr/games - 동일하지만 나에게는 이상해 보입니다. 이는 운영 체제의 새로운 구성 버전입니다. 왜 그것이 게임과 다른 모든 것들을 가리키는 걸까요? 이상한?

DVD 드라이브 "hyripe 외장형 CD/DVD 드라이브"

관련성이 있을 것 같은 또 다른 것입니다. 장치가 부팅 중이며 USB 포트를 통해 연결된 외부 SSD를 메모리로 사용하고 있습니다.

dmesg 출력

[   19.657310] Initializing XFRM netlink socket
[   87.772696] usb 2-2: USB disconnect, device number 2
[   87.775097] device offline error, dev sda, sector 135274584 op 0x1:(WRITE) flags 0x103000 phys_seg 1 prio class 2
[   87.775132] Buffer I/O error on dev sda2, logical block 16777227, lost async page write
[   87.775164] device offline error, dev sda, sector 177217664 op 0x1:(WRITE) flags 0x103000 phys_seg 1 prio class 2
[   87.775179] Buffer I/O error on dev sda2, logical block 22020112, lost async page write
[   87.775195] device offline error, dev sda, sector 177221200 op 0x1:(WRITE) flags 0x103000 phys_seg 1 prio class 2
[   87.775208] Buffer I/O error on dev sda2, logical block 22020554, lost async page write
[   87.775223] device offline error, dev sda, sector 177221456 op 0x1:(WRITE) flags 0x103000 phys_seg 1 prio class 2
[   87.775236] Buffer I/O error on dev sda2, logical block 22020586, lost async page write
[   87.775250] device offline error, dev sda, sector 177225992 op 0x1:(WRITE) flags 0x103000 phys_seg 1 prio class 2
[   87.775262] Buffer I/O error on dev sda2, logical block 22021153, lost async page write
[   87.775276] device offline error, dev sda, sector 177309888 op 0x1:(WRITE) flags 0x103000 phys_seg 1 prio class 2
[   87.775288] Buffer I/O error on dev sda2, logical block 22031640, lost async page write
[   87.775302] device offline error, dev sda, sector 1056768 op 0x1:(WRITE) flags 0x103000 phys_seg 1 prio class 2
[   87.775314] Buffer I/O error on dev sda2, logical block 0, lost async page write
[   87.775328] device offline error, dev sda, sector 1056840 op 0x1:(WRITE) flags 0x103000 phys_seg 1 prio class 2
[   87.775340] Buffer I/O error on dev sda2, logical block 9, lost async page write
[   87.775354] device offline error, dev sda, sector 1056856 op 0x1:(WRITE) flags 0x103000 phys_seg 1 prio class 2
[   87.775366] Buffer I/O error on dev sda2, logical block 11, lost async page write
[   87.776903] device offline error, dev sda, sector 123307176 op 0x1:(WRITE) flags 0x9800 phys_seg 3 prio class 2
[   87.776946] Aborting journal on device sda2-8.
[   87.777003] Buffer I/O error on dev sda2, logical block 15237120, lost sync page write
[   87.777038] JBD2: I/O error when updating journal superblock for sda2-8.
[   87.778325] EXT4-fs error (device sda2): ext4_journal_check_start:84: comm systemd-journal: Detected aborted journal
[   87.778377] EXT4-fs (sda2): previous I/O error to superblock detected
[   87.780733] EXT4-fs (sda2): I/O error while writing superblock
[   87.780759] EXT4-fs (sda2): Remounting filesystem read-only
[   87.932676] sd 0:0:0:0: [sda] Synchronizing SCSI cache
[   87.946770] EXT4-fs warning (device sda2): dx_probe:822: inode #4194305: lblock 0: comm wf-panel-pi: error -5 reading directory block
[   87.960681] EXT4-fs warning (device sda2): dx_probe:822: inode #11752: lblock 0: comm wf-panel-pi: error -5 reading directory block
[   87.960788] EXT4-fs warning (device sda2): dx_probe:822: inode #11752: lblock 0: comm wf-panel-pi: error -5 reading directory block
[   87.996669] EXT4-fs warning (device sda2): dx_probe:822: inode #4194305: lblock 0: comm gvfs-udisks2-vo: error -5 reading directory block
[   87.996739] EXT4-fs warning (device sda2): dx_probe:822: inode #4194305: lblock 0: comm gvfs-udisks2-vo: error -5 reading directory block
[   87.997338] EXT4-fs warning (device sda2): dx_probe:822: inode #4194305: lblock 0: comm gvfs-udisks2-vo: error -5 reading directory block
[   88.036652] sd 0:0:0:0: [sda] Synchronize Cache(10) failed: Result: hostbyte=0x07 driverbyte=DRIVER_OK
[   88.036752] scsi 0:0:0:0: rejecting I/O to dead device
[   88.036853] EXT4-fs warning (device sda2): dx_probe:822: inode #4194305: lblock 0: comm gvfs-udisks2-vo: error -5 reading directory block
[   88.036936] EXT4-fs warning (device sda2): dx_probe:822: inode #4194305: lblock 0: comm gvfs-udisks2-vo: error -5 reading directory block
[   88.036961] EXT4-fs warning (device sda2): dx_probe:822: inode #4194305: lblock 0: comm gvfs-udisks2-vo: error -5 reading directory block
[   88.036980] EXT4-fs warning (device sda2): dx_probe:822: inode #4194305: lblock 0: comm gvfs-udisks2-vo: error -5 reading directory block
[   89.272857] usb usb2-port1: over-current change #1
[   89.347052] usb 1-1-port1: over-current change #1
[   89.488839] usb usb2-port2: over-current change #1
[   89.567467] usb 1-1-port2: over-current change #1
[   89.704835] usb usb2-port3: over-current change #1
[   89.785661] usb 1-1-port3: over-current change #1
[   89.920848] usb usb2-port4: over-current change #1
[   90.005647] usb 1-1-port4: over-current change #1
[   91.216972] usb usb2-port1: over-current change #2
[   91.432929] usb usb2-port2: over-current change #2
[   91.648944] usb usb2-port3: over-current change #2
[   91.864930] usb usb2-port4: over-current change #2
[   92.353317] usb 2-2: new SuperSpeed USB device number 3 using xhci_hcd
[   92.381049] usb 2-2: New USB device found, idVendor=0bda, idProduct=9210, bcdDevice=20.01
[   92.381060] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[   92.381064] usb 2-2: Product: RTL9210
[   92.381068] usb 2-2: Manufacturer: Realtek
[   92.381071] usb 2-2: SerialNumber: 012345678904
[   92.386529] usb 2-2: Enable of device-initiated U1 failed.
[   92.387180] usb 2-2: Enable of device-initiated U2 failed.
[   92.396633] usb 2-2: Enable of device-initiated U1 failed.
[   92.397227] usb 2-2: Enable of device-initiated U2 failed.
[   92.400265] scsi host1: uas
[   92.403800] scsi 1:0:0:0: Direct-Access     Realtek  RTL9210 NVME     1.00 PQ: 0 ANSI: 6
[   92.434380] sd 1:0:0:0: Attached scsi generic sg0 type 0
[   92.439587] sd 1:0:0:0: [sdb] 250069680 512-byte logical blocks: (128 GB/119 GiB)
[   92.441039] sd 1:0:0:0: [sdb] Write Protect is off
[   92.441052] sd 1:0:0:0: [sdb] Mode Sense: 37 00 00 08
[   92.444215] sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[   92.445600] sd 1:0:0:0: [sdb] Preferred minimum I/O size 512 bytes
[   92.445610] sd 1:0:0:0: [sdb] Optimal transfer size 33553920 bytes
[   92.456256]  sdb: sdb1 sdb2
[   92.456687] sd 1:0:0:0: [sdb] Attached SCSI disk
[   93.009059] EXT4-fs warning: 152 callbacks suppressed
[   93.009080] EXT4-fs warning (device sda2): dx_probe:822: inode #4194305: lblock 0: comm gmain: error -5 reading directory block
[   93.946572] EXT4-fs warning (device sda2): dx_probe:822: inode #4194305: lblock 0: comm wf-panel-pi: error -5 reading directory block
[   93.946708] EXT4-fs warning (device sda2): dx_probe:822: inode #11752: lblock 0: comm wf-panel-pi: error -5 reading directory block
[   93.946748] EXT4-fs warning (device sda2): dx_probe:822: inode #11752: lblock 0: comm wf-panel-pi: error -5 reading directory block
[   93.996856] usb 1-1.4: new high-speed USB device number 3 using xhci_hcd
[   94.097995] usb 1-1.4: New USB device found, idVendor=13fd, idProduct=1040, bcdDevice= 1.06
[   94.098020] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[   94.098032] usb 1-1.4: Product: UJDA755 DVD/CDRW
[   94.098042] usb 1-1.4: Manufacturer: Initio
[   94.098050] usb 1-1.4: SerialNumber: 0000000000000000W
[   94.102518] usb-storage 1-1.4:1.0: USB Mass Storage device detected
[   94.104036] scsi host2: usb-storage 1-1.4:1.0
[   94.947221] EXT4-fs warning (device sda2): dx_probe:822: inode #4194305: lblock 0: comm wf-panel-pi: error -5 reading directory block
[   94.947358] EXT4-fs warning (device sda2): dx_probe:822: inode #11752: lblock 0: comm wf-panel-pi: error -5 reading directory block
[   94.947400] EXT4-fs warning (device sda2): dx_probe:822: inode #11752: lblock 0: comm wf-panel-pi: error -5 reading directory block
[   95.009150] EXT4-fs warning (device sda2): dx_probe:822: inode #4194305: lblock 0: comm gmain: error -5 reading directory block
[   95.197299] scsi 2:0:0:0: CD-ROM            MATSHITA UJDA755 DVD/CDRW 1.00 PQ: 0 ANSI: 0
[   95.198097] scsi 2:0:0:0: Attached scsi generic sg1 type 5
[   95.198889] EXT4-fs warning (device sda2): htree_dirblock_to_tree:1082: inode #4195975: lblock 0: comm systemd-udevd: error -5 reading directory block
[   95.199149] EXT4-fs warning (device sda2): htree_dirblock_to_tree:1082: inode #11102: lblock 0: comm systemd-udevd: error -5 reading directory block
[   96.695423] usb usb2-port1: over-current change #3
[   96.909249] usb usb2-port2: over-current change #3
[   97.126132] usb 2-2: USB disconnect, device number 3
[   97.156984] sd 1:0:0:0: [sdb] Synchronizing SCSI cache
[   97.384973] sd 1:0:0:0: [sdb] Synchronize Cache(10) failed: Result: hostbyte=0x07 driverbyte=DRIVER_OK
[   97.685449] usb 2-2: new SuperSpeed USB device number 4 using xhci_hcd
[   97.713108] usb 2-2: New USB device found, idVendor=0bda, idProduct=9210, bcdDevice=20.01
[   97.713134] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[   97.713147] usb 2-2: Product: RTL9210
[   97.713157] usb 2-2: Manufacturer: Realtek
[   97.713166] usb 2-2: SerialNumber: 012345678904
[   97.716723] usb 2-2: Enable of device-initiated U1 failed.
[   97.717440] usb 2-2: Enable of device-initiated U2 failed.
[   98.256005] usb 2-2: Enable of device-initiated U1 failed.
[   98.256581] usb 2-2: Enable of device-initiated U2 failed.
[   98.262045] EXT4-fs warning: 73 callbacks suppressed
[   98.262062] EXT4-fs warning (device sda2): htree_dirblock_to_tree:1082: inode #4195975: lblock 0: comm systemd-udevd: error -5 reading directory block
[   98.262332] EXT4-fs warning (device sda2): htree_dirblock_to_tree:1082: inode #11102: lblock 0: comm systemd-udevd: error -5 reading directory block
[   98.262441] EXT4-fs warning (device sda2): dx_probe:822: inode #4194305: lblock 0: comm systemd-udevd: error -5 reading directory block
[   98.262888] scsi host1: uas