Directories Show Up with the Same Name

gw1500se · 05-21-2020, 05:23 PM

I have discovered something I thought was impossible:

Code:

pi@raspberrypi:~ $ ls -l /mnt/1wire
total 0
drwxrwxrwx 1 root root 4096 May 21 18:16 3A.0BE14D000000
drwxrwxrwx 1 root root 4096 May 21 18:16 3A.0BE14D000000
drwxr-xr-x 1 root root 4096 May 21 13:24 bus.0
drwxr-xr-x 1 root root 4096 May 21 13:24 bus.1
drwxr-xr-x 1 root root 4096 May 21 13:24 settings
drwxr-xr-x 1 root root 4096 May 21 13:24 statistics
drwxr-xr-x 1 root root 4096 May 21 13:24 structure
drwxr-xr-x 1 root root 4096 May 21 13:24 system
drwxr-xr-x 1 root root 4096 May 21 13:24 uncached

Can someone explain those 2 directories to me? TIA.

GPGAgent · 05-21-2020, 05:32 PM

Spaces at the end of the names maybe?

gw1500se · 05-21-2020, 05:38 PM

Thanks but no, I checked that.

rnturn · 05-21-2020, 05:51 PM

Quote:

Originally Posted by gw1500se

I have discovered something I thought was impossible:

Code:

pi@raspberrypi:~ $ ls -l /mnt/1wire
total 0
drwxrwxrwx 1 root root 4096 May 21 18:16 3A.0BE14D000000
drwxrwxrwx 1 root root 4096 May 21 18:16 3A.0BE14D000000
drwxr-xr-x 1 root root 4096 May 21 13:24 bus.0
drwxr-xr-x 1 root root 4096 May 21 13:24 bus.1
drwxr-xr-x 1 root root 4096 May 21 13:24 settings
drwxr-xr-x 1 root root 4096 May 21 13:24 statistics
drwxr-xr-x 1 root root 4096 May 21 13:24 structure
drwxr-xr-x 1 root root 4096 May 21 13:24 system
drwxr-xr-x 1 root root 4096 May 21 13:24 uncached

Can someone explain those 2 directories to me? TIA.

What does "ls -i" show when you issue it in that directory? (Surely they don't have the same inode listed...)

Looks like another filesystem mounted on "/mnt/lwire". What's supposed to be there?

ehartman · 05-21-2020, 10:15 PM

Quote:

Originally Posted by gw1500se

Code:

pi@raspberrypi:~ $ ls -l /mnt/1wire
total 0
drwxrwxrwx 1 root root 4096 May 21 18:16 3A.0BE14D000000
drwxrwxrwx 1 root root 4096 May 21 18:16 3A.0BE14D000000
drwxr-xr-x 1 root root 4096 May 21 13:24 bus.0
drwxr-xr-x 1 root root 4096 May 21 13:24 bus.1
drwxr-xr-x 1 root root 4096 May 21 13:24 settings
drwxr-xr-x 1 root root 4096 May 21 13:24 statistics
drwxr-xr-x 1 root root 4096 May 21 13:24 structure
drwxr-xr-x 1 root root 4096 May 21 13:24 system
drwxr-xr-x 1 root root 4096 May 21 13:24 uncached

Another strange thing: all directories have a link count of only 1, which is impossible on a Linux filesystem as they have at least 2 (the name and the . entry IN it).
So whatever is mounted on /mnt/wire is some unknown file system without linked . (and possible ..) entries.
This may, or may not, have something to do with the problem.

What IS the kind of FS mounted onto that dir?

gw1500se · 05-22-2020, 08:31 AM

Thanks for the replies. There is nothing specifically "mounted" on that directory but it is an OWFS created and managed file system. Here is the output from ls -i:

9 3A.0BE14D000000 3 bus.0 5 settings 8 structure 4 uncached
9 3A.0BE14D000000 2 bus.1 7 statistics 6 system

I suppose it is normal for that type file system but it sure seems difficult, to me, to achieve given Linux file system management.