mount options shown in /proc/mounts
IIRC then the mount options shown in /proc/mounts have changed. Some time ago acl and user_xattr were shown, now it seems that only noacl and nouser_xattr are shown if these features are turned off.
filesystems
How to safely turn off swap permanently and reclaim the space? (on Debian Jessie)
I installed Debian Jessie with default partitioning on my SSD drive. My current disk partitioning looks like this:
Why is ‘.’ a hard link in Unix?
I’ve seen many explanations for why the link count for an empty directory in Unix based OSes is 2 instead of 1. They all say that it’s because of the ‘.’ directory, which every directory has pointing back to itself. I understand why having some concept of ‘.’ is useful for specifying relative paths, but what is gained by implementing it at the filesystem level? Why not just have shells or the system calls that take paths know how to interpret it?
Check if folder is a mounted remote filesystem
What is the best way (reliable, portable, etc.) to check if a given folder is on a mounted remote (nfs) filesystem within a shell script?
Why do the directories /home, /usr, /var, etc. all have the same inode number (2)?
I find that under my root directory, there are some directories that have the same inode number:
mount info for current directory
I can do df . to get some of the info on the mount that the current directory is in, and I can get all the info I want from mount. However I get to much info (info about other mounts). I can grep it down, but am wondering if there is a better way.
How to set permissions in /sys/ permanent?
I’m starting X as a user and need to set my keyboard brightness in /sys/class/leds/asus::kbd_backlight/brightness. The /sys/ directory gets recreated after reboot, so the permissions will reset too. How do I set it up so I don’t need to make the file writable by all users after every boot?
How to clean up unnecessary files
Please suggest me any particular unnecessary file that I can clean to back everything to normal condition(temporarily). (i.e. any log or archieve or anything ). My var/log has only 40MB and Home directory has 3GB of space(so I believe that’s not a problem). Other than that what I can clean up to make space.
Why is df missing 500MB of available space?
I’ve just had a message today from Ubuntu 11.04 that I have only 100 MB left, so I cleaned up some files, and I got 200 MB. Then, after a couple of hours, suddenly I have only 26 MB?! I tried df, du via mount –bind, /forcefsck with reboot – nothing could should what the … Read more
How can I delete a folder with lots of subfolders fast?
I have a folder with 266778 subfolders. How can I delete it?