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pedda
Asked: 2025-02-24 21:45:27 +0800 CST

在 2 个微型 SD 卡单元上进行 Rsync，组合为 luks 加密的 LVM，在 fscrypt 之上：Fscrypt 似乎会不时锁定，如何避免？

  • 772

希望有人能提供提示，如果 fscrypt 可以替代我备份主文件夹（位于不同的 PV 组中，luks 加密，ecryptfs 主文件夹）中容易出错的 ecyryptfs，那么可以帮我解决这个问题：

   +-----------------------------------+        +-----------------------------------+
   |          Source: Home             |        |         Destination: Backup       |
   |     (eCryptfs on Home Partition)  |        |     (fscrypt on Backup Partition) |
   +-----------------------------------+        +-----------------------------------+
                \|/               |                   ^         \|/
                 |                |___________________|          |
                 |              (rsync from Home to Backup)      | 
                 v                                               v
   +-----------------------------------+        +-----------------------------------+
   |   eCryptfs Layer (Home Folder)    |        | fscrypt Layer (BackupHome)        |
   +-----------------------------------+        +-----------------------------------+
   |       Home Partition              |        |       BackupHome Partition        |
   +-----------------------------------+        +-----------------------------------+   
   |   LVM Volume (Home)               |        |   LVM Volume (BackupHome)         |
   +-----------------------------------+        +-----------------------------------+ 
   |   LVM: PV Group (Main SSD)        |        |   LVM: PV Group (USB Stick)       |
   +-----------------------------------+        +-----------------------------------+   
   |   LUKS Encrypted (Main SSD)       |        |   LUKS Encrypted (µSD Slot 1)     |
   +-----------------------------------+        +-----------------------------------+ 
   |   Physical Layer (Main SSD)       |        |   LUKS Encrypted (µSD Slot 2)     |
   +-----------------------------------+        +-----------------------------------+
                 \|/                            |           Physical Layer          |
                  |                             +-----------------------------------+
                  |                                             \|/
   +-----------------------------------+        +-----------------------------------+
   | Physical Layer (4 TB SSD)         |        |   Physical Layer (USB Stick)      |
   | Dual Boot Windows/Linux (LVM)     |        |   Combined 2 x 1.5TB µSD with     |
   | LUKS LVM in part.6, part.5 /boot  |        |                                   |
   | (root, home, swap)in 3.1TB Volume |        |   LVM into 2.8TB Volume           |
   +-----------------------------------+        +-----------------------------------+

现在我想使用以下命令备份我的数据：

rsync -avvh --inplace --size-only --info=progress2 /home/userXXX/  /backupHome/userXXX/

我时不时会随机收到不同的错误消息，例如这些（日志下方的侧面信息）：

[..]
testdaten/shrinkMpegxxDB.log
          9,02G   0%  117,23MB/s    0:01:13 (xfr#915, to-chk=655/497427)
testdaten/yyy.zzz/
testdaten/scripts/
rsync: [receiver] open "/backupHome/userXXX/testdaten/shrinkMpegxxDB.log" failed: Required key not available (126)
          9,02G   0%  117,23MB/s    0:01:13 (xfr#915, to-chk=0/497427)  

sent 9,04G bytes  received 42,04K bytes  121,37M bytes/sec
total size is 1,75T  speedup is 194,06
rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1338) [sender=3.2.7]


[..]

rsync: [generator] recv_generator: mkdir "/backupHome/userXXX/.config/menus" failed: Required key not available (126)
*** Skipping any contents from this failed directory ***
rsync: [generator] recv_generator: mkdir "/backupHome/xxxx/.config/mpv" failed: Required key not available (126)
*** Skipping any contents from this failed directory ***
rsync: [generator] recv_generator: mkdir "/backupHome/userXXX/.config/nautilus" failed: Required key not available (126)
*** Skipping any contents from this failed directory ***
rsync: [generator] recv_generator: mkdir "/backupHome/userXXX/.config/nemo" failed: Required key not available (126)
*** Skipping any contents from this failed directory ***
rsync: [generator] recv_generator: mkdir "/backupHome/userXXX/.config/nomacs" failed: Required key not available (126)
*** Skipping any contents from this failed directory ***
rsync: [generator] recv_generator: mkdir "/backupHome/userXXX/.config/procps" failed: Required key not available (126)
*** Skipping any contents from this failed directory ***
rsync: [generator] recv_generator: mkdir "/backupHome/userXXX/.config/pulse" failed: Required key not available (126)
*** Skipping any contents from this failed directory ***
rsync: [generator] recv_generator: mkdir "/backupHome/userXXX/.config/qimgv" failed: Required key not available (126)
*** Skipping any contents from this failed directory ***
rsync: [generator] recv_generator: mkdir "/backupHome/userXXX/.config/remmina" failed: Required key not available (126)
*** Skipping any contents from this failed directory ***
rsync: [generator] recv_generator: mkdir "/backupHome/userXXX/.config/simple-scan" failed: Required key not available (126)
*** Skipping any contents from this failed directory ***
rsync: [generator] recv_generator: mkdir "/backupHome/userXXX/.config/systemd" failed: Required key not available (126)
*** Skipping any contents from this failed directory ***
rsync: [generator] recv_generator: mkdir "/backupHome/userXXX/.config/teamviewer" failed: Required key not available (126)

[..]

        103,23M   0%    2,26MB/s    0:00:43 (xfr#1034, ir-chk=1028/476659)
[sender] expand file_list pointer array to 1024 bytes, did move
[sender] expand file_list pointer array to 1024 bytes, did move
[sender] expand file_list pointer array to 1024 bytes, did move
[sender] expand file_list pointer array to 1024 bytes, did move
[sender] expand file_list pointer array to 4096 bytes, did not move
[sender] expand file_list pointer array to 16384 bytes, did not move
[sender] expand file_list pointer array to 32768 bytes, did move
        103,23M   0%    2,24MB/s    0:00:44 (xfr#1034, ir-chk=2841/479500)
[..]
total: matches=0  hash_hits=0  false_alarms=0 data=103226155

sent 124,32M bytes  received 46,81M bytes  3,20M bytes/sec
total size is 1,75T  speedup is 10.254,91
rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1338) [sender=3.2.7]

完整备份为 1.8 TB。加上传输的第一“块”数据（每次都因错误而中断），共计 747 GB。文件访问被禁止。我尝试使用 bash 命令，但同样失败，因此它与有关fscrypt。

每次我一次又一次地解锁房屋（每次取消后），它都会继续工作。因为 USB 棒变得非常热，所以我用冰箱里的一些冷却冰块给它降温：

fscrypt unlock /backupHome/userXXX

那么你的想法是什么？我对错误原因的建议是：

  • 设备过热（冷却并再次解锁后，一次传输 1TB 的数据）
  • 我是否在解锁 fscrypted backupHome 文件夹时意外犯了一个错误？
  • LUKS/LVM/2µSD 配置在 µSD 扩展 USB 模块中绑定在一起是否有问题？

我希望有人能帮忙！

[编辑] 根据@SteffenUlrich 和我自己的假设，这可能强烈指向硬件问题，因为

  • SD 可能与 ext4fs 兼容性不太好，主要仅支持 FAT/FAT32/exFat
  • 系统过热（因为冷却有助于完美地加载至少 1TB 的数据块。）（但这对我来说并没有得到证实，因为我无法正确评估其他错误来源，所以当天 dm-7 设备的日志显示了一些提示：
# journalctl -k | grep -Ei "excryptfs|error"
Oct 17 19:15:16 HP-ENVY-Laptop-13-aq1176ng kernel: pcieport 0000:00:1c.4: DPC: error containment capabilities: Int Msg #0, RPExt+ PoisonedTLP+ SwTrigger+ RP PIO Log 4, DL_ActiveErr+
Oct 17 19:15:16 HP-ENVY-Laptop-13-aq1176ng kernel: pcieport 0000:00:1d.4: DPC: error containment capabilities: Int Msg #0, RPExt+ PoisonedTLP+ SwTrigger+ RP PIO Log 4, DL_ActiveErr+
Oct 17 19:15:16 HP-ENVY-Laptop-13-aq1176ng kernel: RAS: Correctable Errors collector initialized.
Feb 20 00:05:30 HP-ENVY-Laptop-13-aq1176ng kernel: hp_wmi: query 0x4c returned error 0x6
Feb 20 00:05:36 HP-ENVY-Laptop-13-aq1176ng kernel: ACPI BIOS Error (bug): Could not resolve symbol [\_TZ.ETMD], AE_NOT_FOUND (20230628/psargs-332)
Feb 20 00:05:36 HP-ENVY-Laptop-13-aq1176ng kernel: ACPI Error: Aborting method \_SB.IETM._OSC due to previous error (AE_NOT_FOUND) (20230628/psparse-529)
Feb 20 09:41:07 HP-ENVY-Laptop-13-aq1176ng kernel: Buffer I/O error on dev dm-7, logical block 0, async page read
Feb 20 09:41:07 HP-ENVY-Laptop-13-aq1176ng kernel: Buffer I/O error on dev dm-7, logical block 0, async page read
Feb 20 09:41:07 HP-ENVY-Laptop-13-aq1176ng kernel: Buffer I/O error on dev dm-7, logical block 0, async page read

[.. many more ..]

Feb 20 09:41:52 HP-ENVY-Laptop-13-aq1176ng kernel: buffer_io_error: 6 callbacks suppressed

[.. many more ..]

Feb 20 09:42:01 HP-ENVY-Laptop-13-aq1176ng kernel: Buffer I/O error on dev dm-7, logical block 8192, async page read
Feb 20 09:42:01 HP-ENVY-Laptop-13-aq1176ng kernel: Buffer I/O error on dev dm-7, logical block 8192, async page read
Feb 20 09:42:01 HP-ENVY-Laptop-13-aq1176ng kernel: Buffer I/O error on dev dm-7, logical block 16384, async page read
Feb 20 09:42:01 HP-ENVY-Laptop-13-aq1176ng kernel: Buffer I/O error on dev dm-7, logical block 16384, async page read
Feb 20 09:42:01 HP-ENVY-Laptop-13-aq1176ng kernel: Buffer I/O error on 

[.. many more ..]

Feb 23 14:43:21 HP-ENVY-Laptop-13-aq1176ng kernel:  filemap_fdatawait_range_keep_errors+0x12/0x50
Feb 23 16:19:36 HP-ENVY-Laptop-13-aq1176ng kernel:  filemap_fdatawait_range_keep_errors+0x12/0x50
Feb 23 20:43:48 HP-ENVY-Laptop-13-aq1176ng kernel:  filemap_fdatawait_range_keep_errors+0x12/0x50
Feb 25 04:04:24 HP-ENVY-Laptop-13-aq1176ng kernel: ecryptfs_decrypt_page: Error attempting to read lower page; rc = [-4]
Feb 25 04:04:24 HP-ENVY-Laptop-13-aq1176ng kernel: ecryptfs_read_folio: Error decrypting page; rc = [-4]
ecryptfs_read_folio: Error decrypting page; rc = [-4]

[.. man more ..]
usb

1 个回答

  1. Best Answer

    事实证明，这很可能是过热问题，因为冷却后不会再发生这种情况。在它稳定发生之前，在我感觉到设备粘连之前。

    正如 @SteffenUllrich 在其评论中指出的那样，文件系统随后将变为只读，以防止进一步损坏。然后必须重新打开 fscrypt 系统，这就是我正在做的事情。在 1.8TB rsync 期间，将冰箱中的冷却元件放在它周围。未来的 rsync 只会覆盖几百 MB 或 GB，因此过热不会再次发生！

    所以这是一个简单的过热问题！

    • 0

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