我有一个 encfs 加密文件夹，我刚刚剪切了其中一个子文件夹的内容并将其粘贴到 encfs 加密文件夹之外的另一个文件夹中。执行此操作时，我收到一条错误消息，提示无法删除一个子文件夹，因为它不为空。
问题是，每个文件曾是粘贴到新文件夹中，旧文件夹中没有留下任何文件，我ls -ll -a在子文件夹中进行了检查：
total 8
drwxrwx--- 1 root plugdev 4096 Nov 9 16:19 .
drwxrwx--- 1 root plugdev 4096 Nov 9 16:19 ..
我不知道total 8这里应该提供哪些信息。如果我尝试，sudo ls -ll -a系统会提示我没有权限执行此操作。
基本上也是一样rm。如果我这样做rm -rf foldername，它会说文件夹不是空的。如果我这样做sudo rm -rf foldername，它会说我没有权限这样做。
更新（11月19日）：
的输出sudo smartctl --all /dev/sda是
smartctl 6.4 2014-10-07 r4002 [x86_64-linux-4.2.0-040200-generic] (local build)
Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Device Model: LITEONIT LMT-256M6M mSATA 256GB
Serial Number: TW0XXM30550853571923
Firmware Version: DM8110C
User Capacity: 256.060.514.304 bytes [256 GB]
Sector Size: 512 bytes logical/physical
Rotation Rate: Solid State Device
Device is: Not in smartctl database [for details use: -P showall]
ATA Version is: ATA8-ACS, ATA/ATAPI-7 T13/1532D revision 4a
SATA Version is: SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Thu Nov 19 10:20:30 2015 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
General SMART Values:
Offline data collection status: (0x00) Offline data collection activity
was never started.
Auto Offline Data Collection: Disabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: ( 10) seconds.
Offline data collection
capabilities: (0x15) SMART execute Offline immediate.
No Auto Offline data collection support.
Abort Offline collection upon new
command.
No Offline surface scan supported.
Self-test supported.
No Conveyance Self-test supported.
No Selective Self-test supported.
SMART capabilities: (0x0002) Does not save SMART data before
entering power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x00) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 1) minutes.
Extended self-test routine
recommended polling time: ( 10) minutes.
SCT capabilities: (0x003d) SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control supported.
SCT Data Table supported.
SMART Attributes Data Structure revision number: 1
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
5 Reallocated_Sector_Ct 0x0003 100 100 000 Pre-fail Always - 0
12 Power_Cycle_Count 0x0003 100 100 000 Pre-fail Always - 3655
175 Program_Fail_Count_Chip 0x0003 100 100 000 Pre-fail Always - 0
176 Erase_Fail_Count_Chip 0x0003 100 100 000 Pre-fail Always - 0
177 Wear_Leveling_Count 0x0003 100 100 000 Pre-fail Always - 222113
178 Used_Rsvd_Blk_Cnt_Chip 0x0003 100 100 000 Pre-fail Always - 0
179 Used_Rsvd_Blk_Cnt_Tot 0x0003 100 100 000 Pre-fail Always - 0
180 Unused_Rsvd_Blk_Cnt_Tot 0x0003 100 100 005 Pre-fail Always - 1664
181 Program_Fail_Cnt_Total 0x0003 100 100 000 Pre-fail Always - 0
182 Erase_Fail_Count_Total 0x0003 100 100 000 Pre-fail Always - 0
187 Reported_Uncorrect 0x0003 100 100 000 Pre-fail Always - 0
195 Hardware_ECC_Recovered 0x0003 100 100 000 Pre-fail Always - 0
241 Total_LBAs_Written 0x0003 100 100 000 Pre-fail Always - 286617
242 Total_LBAs_Read 0x0003 100 100 000 Pre-fail Always - 414678
SMART Error Log Version: 0
No Errors Logged
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Short offline Completed without error 00% 44292 -
# 2 Short offline Completed without error 00% 56577 -
# 3 Short offline Completed without error 00% 56321 -
# 4 Short offline Completed without error 00% 56321 -
# 5 Short offline Completed without error 00% 1024 -
# 6 Short offline Completed without error 00% 1024 -
# 7 Short offline Completed without error 00% 256 -
# 8 Extended offline Completed without error 00% 0 -
Selective Self-tests/Logging not supported
答案1
该文件夹可能是您加密卷的挂载点。输入mount终端，看看加密驱动器（虽然是空的）是否仍挂载到此文件夹中。您可以使用sudo umount /path/to/folder它来卸载它（可以说是“关闭加密系统”）。一旦文件夹不再是活动挂载点，您就应该能够删除它。