[dolphin] [Bug 432762] New: Corrupted Filesystem and Missing Documents Directory

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https://bugs.kde.org/show_bug.cgi?id=432762

            Bug ID: 432762
           Summary: Corrupted Filesystem and Missing Documents Directory
           Product: dolphin
           Version: 19.12.3
          Platform: Kubuntu Packages
                OS: Linux
            Status: REPORTED
          Severity: major
          Priority: NOR
         Component: general
          Assignee: dolphin-bugs-null at kde.org
          Reporter: martrwcl at yahoo.com
                CC: kfm-devel at kde.org
  Target Milestone: ---

SUMMARY
Organizing and backing up files.  Rebooted computer into Win7 OS and then
returned to Kubuntu 20.04.  The directory /home/user/Documents could not be
found.  This is approximately 6 GiB of data missing.  Immediately shut down
computer and started attempts at date recovery from spare HDD with R-Linux,
testdisk, fsck. R-Linux and testdisk show intentionally deleted files from
weeks before.  fsck indicate no faults. No trace of the directory or files it
contained can be located.

Made read only image of partition and saved to external drive. Already had 2
week old image on identical HDD  in same computer.  Could compare the size of
the 2 week old image with the corrupt directory structure.  Two week image(with
Documents folder intact via Dolphin properties: 51.5 GiB, 62,283 files and 5836
subfolders.  Corrupted home directory(missing Documents folder) via Dolphin
properties: 34.2 GiB, 85,234 files and 8279 subfolders.

Using grep, I can find indications of the missing documents on the corrupt home
directory, explaining some of the +23000 files and +2500 subfolders.  The data
is still in place but there is no index into the file structure.

STEPS TO REPRODUCE
Never seen before, hope to never see again.


SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 20.04
(available in About System)
KDE Plasma Version: 5.18.5
KDE Frameworks Version: 5.68.0
Qt Version:5.12.8

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