我使用 Ubuntu 20.04 和两个外部硬盘，均安装在 Sabrent EC-DFFN USB3 机箱中。我可以安装它们并访问 Caja 中的文件，但磁盘只能看到一个驱动器。如果我一次安装一个，序列号会有所不同，大小是正确的 1TB 或 2TB。
如果同时安装，则只显示一个，且大小为最后安装的 HDD 的大小。
fdisk-l输出：
Disk /dev/loop0: 9.7 MiB, 9510912 bytes, 18576 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 /dev/loop2: 96.52 MiB, 101191680 bytes, 197640 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 /dev/loop3: 54.98 MiB, 57626624 bytes, 112552 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 /dev/loop4: 54.97 MiB, 57618432 bytes, 112536 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 /dev/loop5: 160.16 MiB, 167931904 bytes, 327992 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 /dev/loop6: 161.42 MiB, 169254912 bytes, 330576 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 /dev/loop7: 105.3 MiB, 110403584 bytes, 215632 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 /dev/sda: 111.81 GiB, 120034123776 bytes, 234441648 sectors
Disk model: Corsair Force LS
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: 0xa7c40be5
Device Boot Start End Sectors Size Id Type
/dev/sda1 * 2048 234440703 234438656 111.8G 83 Linux
Disk /dev/loop8: 105.29 MiB, 110399488 bytes, 215624 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 /dev/loop9: 62.9 MiB, 65105920 bytes, 127160 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 /dev/loop10: 62.3 MiB, 65323008 bytes, 127584 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 /dev/loop11: 16 KiB, 16384 bytes, 32 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 /dev/loop12: 14.89 MiB, 15589376 bytes, 30448 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 /dev/loop13: 14.89 MiB, 15589376 bytes, 30448 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 /dev/loop14: 7.95 MiB, 8310784 bytes, 16232 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 /dev/loop15: 7.94 MiB, 8306688 bytes, 16224 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 /dev/loop16: 54.84 MiB, 57479168 bytes, 112264 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 /dev/loop17: 16 KiB, 16384 bytes, 32 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 /dev/loop18: 88.28 MiB, 92565504 bytes, 180792 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 /dev/loop19: 96.101 MiB, 101695488 bytes, 198624 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 /dev/sdb: 931.53 GiB, 1000204886016 bytes, 1953525168 sectors
Disk model:
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: C14A5E6C-471D-44D6-9D94-0D004B39BB0B
Device Start End Sectors Size Type
/dev/sdb1 2048 1953523711 1953521664 931.5G Linux filesystem
Disk /dev/sdc: 1.84 TiB, 2000398934016 bytes, 3907029168 sectors
Disk model:
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: AC20240E-7621-4A27-8DBE-8CF8F0F51715
Device Start End Sectors Size Type
/dev/sdc1 2048 3907028991 3907026944 1.8T Linux filesystem
lsblk -f输出：
NAME FSTYPE LABEL UUID FSAVAIL FSUSE% MOUNTPOINT
loop0
squash 0 100% /snap/cano
loop2
squash 0 100% /snap/core
loop3
squash 0 100% /snap/core
loop4
squash 0 100% /snap/core
loop5
squash 0 100% /snap/gnom
loop6
squash 0 100% /snap/gnom
loop7
squash 0 100% /snap/plex
loop8
squash 0 100% /snap/plex
loop9
squash 0 100% /snap/gtk-
loop10
squash 0 100% /snap/smar
loop11
squash 0 100% /snap/soft
loop12
squash 0 100% /snap/ubun
loop13
squash 0 100% /snap/ubun
loop14
squash 0 100% /snap/puls
loop15
squash 0 100% /snap/puls
loop16
squash 0 100% /snap/gtk-
loop17
squash 0 100% /snap/soft
loop18
squash 0 100% /snap/mcom
loop19
squash 0 100% /snap/core
sda
└─sda1
ext4 68230819-5a81-43ea-a3cf-3211626b2c94 67G 34% /
sdb
└─sdb1
ext4 1TB faeae341-9f6d-4642-aeeb-580dd6667fc0 869.2G 0% /media/awa
sdc
└─sdc1
ext4 b5ac84e0-5f7d-44a0-8f52-3034ffa0d404
sr0