How can I extend the logical size of the "main" disk so that it spans over four disks instead of one"?I would like to have a single disk sized as the sum of the four disks.
df -h
Filesystem Size Used Avail Use% Mounted on tmpfs 19G 2.5M 19G 1% /run /dev/nvme1n1p2 3.6T 14G 3.4T 1% / tmpfs 95G 0 95G 0% /dev/shm tmpfs 5.0M 4.0K 5.0M 1% /run/lock efivarfs 192K 157K 31K 84% /sys/firmware/efi/efivars /dev/nvme1n1p1 511M 6.1M 505M 2% /boot/efi tmpfs 19G 1.7M 19G 1% /run/user/1000lsblk -f
NAME FSTYPE FSVER LABEL UUID FSAVAIL FSUSE% MOUNTPOINTS loop0 squash 4.0 0 100% /snap/bare/5 loop1 squash 4.0 0 100% /snap/core22/1122 loop2 squash 4.0 0 100% /snap/firefox/3836 loop3 squash 4.0 0 100% /snap/gnome-42-2204/141 loop4 squash 4.0 0 100% /snap/gtk-common-themes/1535 loop5 squash 4.0 0 100% /snap/snap-store/959 loop6 squash 4.0 0 100% /snap/snapd/20671 loop7 squash 4.0 0 100% /snap/snapd-desktop-integration/83 loop8 0 100% /snap/snapd/21759 loop9 0 100% /snap/core22/1380 nvme1n1│├─nvme1n1p1│ vfat FAT32 5961-C8C7 504.9M 1% /boot/efi└─nvme1n1p2 ext4 1.0 9a8f36f5-1ad7-48f7-b11a-789edee1ae07 3.4T 0% /var/snap/firefox/common/host-hunspell / nvme0n1│├─nvme0n1p1│ vfat FAT32 40D7-F3A0 └─nvme0n1p2 ext4 1.0 fac61036-c0e7-4088-a72f-a1f5aea52699 nvme3n1│ isw_ra 1.3.0 └─nvme3n1p1 ext4 1.0 7685f9c3-89a5-4d36-8a4e-6c8b8f4236f6 nvme2n1│ isw_ra 1.3.0 └─nvme2n1p1 ext4 1.0 8ad1a088-5483-4a35-b870-b829dfb4e732 I am an end user of Ubuntu and I don't know anything about disk management.Thank you very much for your help.