How to determine why "target is busy" (why it won't unmount)?
64006
umount: device is busy. Why?
52379
Why would a partition be in use by the system if it isn't mounted?
34064
how to tell whats eating my harddrive space?
4906
Silencing "Your disk is almost full" notification
110676
How can I figure out why Suspend sometimes fails?
10004
How to understand what's taking up disk space?
11544
How to get rid of "defer (-52): Retry time not yet reached" exim4 logs?
150655
How do I debug an out-of-control "kernel_task" process?
22256
Disk storage graphic and usage amount inconsistent?
148701
How to kill a unresponsive program from terminal?
75500
system mounts /dev/loop0 on /snap/core/3604 and it's 100% full, where is it coming from?
119509
How to check whether systemd is unmounting my device? (and why?)
33041
How can I diagnose/debug "maximum number of clients reached" X errors?
95953
RAM not clearing, alway in standby
146688
Why load is high despite the fact that neither CPU or disk is overused
1657
What is Disk Active Time and how do I decrease it?
139431
How to work around "Release file expired" problem on a local mirror