root@mars-ubuntu:~# fdisk -l
Disk /dev/loop0: 97.9 MiB, 102637568 bytes, 200464 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/loop1: 98.36 MiB, 103129088 bytes, 201424 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/loop2: 55.39 MiB, 58073088 bytes, 113424 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/loop3: 125.87 MiB, 131960832 bytes, 257736 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/loop4: 55.48 MiB, 58159104 bytes, 113592 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/loop5: 69.78 MiB, 73150464 bytes, 142872 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/loop6: 131.61 MiB, 137990144 bytes, 269512 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/loop7: 65.32 MiB, 68489216 bytes, 133768 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/sda: 50 GiB, 53687091200 bytes, 104857600 sectors
Disk model: QEMU HARDDISK
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 99B3632F-7AE4-464E-85EE-481926392CD0
Device Start End Sectors Size Type
/dev/sda1 2048 4095 2048 1M BIOS boot
/dev/sda2 4096 2101247 2097152 1G Linux filesystem
/dev/sda3 2101248 104855551 102754304 49G Linux filesystem
Disk /dev/mapper/ubuntu--vg-ubuntu--lv: 24.51 GiB, 26306674688 bytes, 51380224 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/loop8: 65.32 MiB, 68485120 bytes, 133760 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/loop9: 69.9 MiB, 73277440 bytes, 143120 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/loop10: 31.9 MiB, 32595968 bytes, 63664 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/loop11: 31.9 MiB, 32600064 bytes, 63672 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/sdb: 100 GiB, 107374182400 bytes, 209715200 sectors
Disk model: QEMU HARDDISK
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
root@mars-ubuntu:~# fdisk /dev/sdb
Welcome to fdisk (util-linux 2.34).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Device does not contain a recognized partition table.
Created a new DOS disklabel with disk identifier 0x23fb8269.
Command (m for help): n
Partition type
p primary (0 primary, 0 extended, 4 free)
e extended (container for logical partitions)
Select (default p):
Using default response p.
Partition number (1-4, default 1):
First sector (2048-209715199, default 2048):
Last sector, +/-sectors or +/-size{K,M,G,T,P} (2048-209715199, default 209715199): +100G
Value out of range.
Last sector, +/-sectors or +/-size{K,M,G,T,P} (2048-209715199, default 209715199):
Created a new partition 1 of type 'Linux' and of size 100 GiB.
Command (m for help): w
The partition table has been altered.
Calling ioctl() to re-read partition table.
Syncing disks.
root@mars-ubuntu:~# mkfs.ext4 /dev/sdb
mke2fs 1.45.5 (07-Jan-2020)
Found a dos partition table in /dev/sdb
Proceed anyway? (y,N) y
Discarding device blocks: done
Creating filesystem with 26214400 4k blocks and 6553600 inodes
Filesystem UUID: 25403f3a-42ec-4d88-b4f1-0b06df7972cb
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872
Allocating group tables: done
Writing inode tables: done
Creating journal (131072 blocks): done
Writing superblocks and filesystem accounting information: done
root@mars-ubuntu:~# mkdir /data
root@mars-ubuntu:~# mount /dev/sdb /data
root@mars-ubuntu:~# df -k
Filesystem 1K-blocks Used Available Use% Mounted on
udev 24810680 0 24810680 0% /dev
tmpfs 4971412 1560 4969852 1% /run
/dev/mapper/ubuntu--vg-ubuntu--lv 25155844 13155264 10699692 56% /
tmpfs 24857044 8 24857036 1% /dev/shm
tmpfs 5120 0 5120 0% /run/lock
tmpfs 24857044 0 24857044 0% /sys/fs/cgroup
/dev/sda2 999320 313520 616988 34% /boot
/dev/loop0 100352 100352 0 100% /snap/core/10583
/dev/loop1 100736 100736 0 100% /snap/core/10823
/dev/loop2 56832 56832 0 100% /snap/core18/1944
/dev/loop4 56832 56832 0 100% /snap/core18/1988
/dev/loop5 71552 71552 0 100% /snap/lxd/19032
/dev/loop3 128896 128896 0 100% /snap/docker/471
/dev/loop6 134784 134784 0 100% /snap/docker/796
/dev/loop7 66944 66944 0 100% /snap/powershell/158
/dev/loop8 66944 66944 0 100% /snap/powershell/154
/dev/loop9 71680 71680 0 100% /snap/lxd/19188
/dev/loop10 31872 31872 0 100% /snap/snapd/11036
/dev/loop11 31872 31872 0 100% /snap/snapd/10707
tmpfs 4971408 40 4971368 1% /run/user/1001
/dev/sr0 935936 935936 0 100% /media/minecraft/Ubuntu-Server 20.04.1 LTS amd64
/dev/sdb 102687672 61464 97366944 1% /data
root@mars-ubuntu:~# vi /etc/fstab
