I have been bashing my head against the wall, regretting ever having opted into using LVM.
I need to shrink the 75GB /dev/sda2/ to make room for a new OS installation. To do this, I need to shrink the /dev/sd5 partition which is contained in sd2.
I first attempted to use GParted, but my version says it does not support LVM. I downloaded the latest .iso for GParted Live into a CD, but the results were similar.
So I have already taken all the steps to shrink the filesystem, volume group, physical volume, and so on.
user@computer:~$ sudo pvs PV VG Fmt Attr PSize PFree /dev/sda5 ubuntu lvm2 a- 56.00g 1020.00m user@computer:~$ sudo lvdisplay --- Logical volume --- LV Name /dev/ubuntu/root VG Name ubuntu LV UUID blahblahblah LV Write Access read/write LV Status available # open 0 LV Size 55.00 GiB Current LE 14080 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 252:0
I have even removed the swap_1 volume.
When I run the latest GParted from the LiveCD, it does show the used 56GB volume group, then some 18GB unallocated space. However, it still does not let me resize /dev/sda5 or /dev/sda2. How can I resize /dev/sda2, given that the volume group and physical volumes are already 55GB, while is 18GB less than the size of the containing extended partition /dev/sd2?