A tragedy happened ...
I was actually testing a script that would separate the .h, .la, .a, etc. -dev files and man pages into -doc as separate tczs from a given tce (my laziness led me). In the clean up process of the script I included "rm -rf "$FILE"/*" and accidentally ran it without any args.
And guess what... my whole sda5 partition containing TC x64 (with a lot of tczs), my data backup(along with the bloody script that caused this destruction and my favourite developing submitqc patch) and dCore x64(only kernel and initrd, NP) was gone into ashes
. Thank God I did not mount my Windows 10 or Phoenix OS. To recover sda5, I need Scalpel.