unallocating or freeing some space to install another OS
1734
How do I resize my current ubuntu partition?
146890
Clone only space in use from hard disk
148020
No space left on device -- but there is space
117233
How to wipe free disk space in Linux?
125782
How do I give Ubuntu more space (when installed inside Windows 7 (via wubi))?
7070
How to shrink Windows 7 boot partition with unmovable files
68897
GParted merge unallocated space to ext4 partition
132267
How can I shrink a Logical Volume, and re-allocate the freed space into a new partition on the same drive?
24194
How to delete the other Windows Operating System when I have two
123685
What is safe to exclude for a full system backup?
55378
How do I partition a drive so that the data is separate from the operating system?
109851
how to remove other linux os and stay with ubuntu only
155512
Hide Total Size and Free Space on Network Drives
9991
If I delete a Windows Drive, Can I use that space to Install Ubuntu?
100806
How to remove ubuntu partitions and use them to install windows
7268
Move some free space to Macintosh HD (Startup Disk)
44982
How to install with separate home partition (home partition already created in previous installation)?