Can't read or write on new partition i created from /root partition and now i can't do anything on that partition.
when i opens its properties it show you are not owner so you can not change these permissions.
i tried to change the permission of group to admin using
sudo chgrp adm /media/sandip/73b40bee-df86-4201-b60f-6e4b6d60ee0e chgrp: cannot access '/media/sandip/73b40bee-df86-4201-b60f-6e4b6d60ee0e' : No such file or directory
i first installed ubuntu recommendly but that created three partition and /root has many of the disk space than i partition /root using bootable cd, and then i created ext4 partition and now i can't copy or paste in the new partition or i can't do anything in it.
sandip@sandip-Lenovo-G580:~$ sudo lsblk -o name,mountpoint,label,size,fstype;sudo parted -l NAME MOUNTPOINT LABEL SIZE FSTYPE sda 465.8G ├─sda1 /boot/efi 512M vfat ├─sda2 / 80.4G ext4 ├─sda3 [SWAP] 1.9G swap └─sda4 /media/sandip/Mishra Mishra 383G ext4 sr0 1024M Model: ATA ST500LT012-9WS14 (scsi) Disk /dev/sda: 500GB Sector size (logical/physical): 512B/4096B Partition Table: gpt Number Start End Size File system Name Flags 1 1049kB 538MB 537MB fat32 boot 2 538MB 86.9GB 86.4GB ext4 4 86.9GB 498GB 411GB ext4 3 498GB 500GB 2006MB linux-swap(v1)