/dev/mapper: Difference between revisions
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Revision as of 23:34, 31 October 2019
The /dev/mapper/distro--vg-root in place of a traditional /dev/sdxN block device just indicates that you chose to install the system using LVM2 logical volume management.
The devices in /dev/mapper are Logical Volumes. Logical Volume Manager (LVM) uses /dev/mapper and is considered a vastly superior way to manage storage space compared to just creating regular partitions with file systems on various disks.
The subfolders under /dev/mapper are the names of Volume Groups with the device nodes in those subfolders representing Logical Volumes.
cache directory full
with the command
df -h|grep mapper
To find out if it is full. Look for something like:
/dev/mapper/mint--vg-root 101G 61G 36G 64% /
to find out whats filling it up. A big cache file from gimp or something like that
sudo du -a /home | sort -n -r | head -n 10
Shows the top 10 files taking up the most space.