Filesystem structure not working.

[laidlaws]

{I must be getting too old. The answer to this question should be obvious, but I cannot see it.}

I am running a standard installation of Mageia 9. It has the usual top-level "/" directory containing only the main folders. iT is normally a few GB but is only 14 MB.

But that isn't my problem. Every file in each of those subdirectories, including /home, is counted as being in /, which fills up very quickly. This seems to be a natural consequence of the directory structure, but it has worked that way for years. What am I missing?

[doktor5000]

Some more information would be necessary. How do you measure the size for / ? How do you check if a file/subdirectory is located in / filesystem ?
The output of

Code: Select all

df -PhT

would be helpful

[laidlaws]

df -PhT:
The size of / is the same. /dev/sdc is a USB key.

Code: Select all

# df -PhT
Filesystem     Type      Size  Used Avail Use% Mounted on
devtmpfs       devtmpfs  3.9G     0  3.9G   0% /dev
tmpfs          tmpfs     3.9G     0  3.9G   0% /dev/shm
tmpfs          tmpfs     3.9G  1.6M  3.9G   1% /run
/dev/sda14     ext4       48G   46G     0 100% /
/dev/sda9      ext4       20G  6.1G   13G  33% /usr
efivarfs       efivarfs  256K   60K  192K  24% /sys/firmware/efi/efivars
/dev/sda11     ext4      260G  258G  1.5G 100% /home
/dev/sda13     ext4       20G  288K   19G   1% /tmp
/dev/sda12     ext4       15G  4.6G  9.4G  33% /var
tmpfs          tmpfs     790M   88K  790M   1% /run/user/1000
/dev/sr0       iso9660    14M   14M     0 100% /run/media/doug/rEFInd_0.12.0
/dev/sdc1      vfat      512M  266M  247M  52% /run/media/doug/LIBREELEC
/dev/sdc2      ext4       28G  3.5G   24G  13% /run/media/doug/STORAGE

added code tags ~Germ

[doktor5000]

Seems you missed one question.

How do you check if a file/subdirectory is located in / filesystem ?

Apart from that your / and /home is 100% full. Not sure you you cam to that 14 MB but / is currently 46GB in size.
On an unrelated note, any particular reason why you have separate filesystems for /usr, /tmp and /var ?

[laidlaws]

I still can't give a mechanism for this, but I cansee now why it happened when it did. A few months ago, I bought and added to my machine a drive in M.2 format to hold backups. In the M.2 format, it was a rather tiny PCB rather like a stick of RAM. Ther is a place on the motherboard to mount it physically. Because there were no cables involved, I had to accept thed rive letter the BIOS gave it, which was /dev/sda. Both Windows and Linux saw it as the first drive, and that was where Mageia installer put the installation, noton thje hard drive, which was now /dev/sdb That caused the confusion. I eventually forced the installer to use the original partitions on the hard disk, and it all came together
Sho mark this thread as SOLVED or INVALID, following Bugzilla classification?

[doktor5000]

Just mark it as DONE as there is no real solution.

Hint: you can use lsblk to more easily see the disk/partition hierarchy including the filesystem mounts.