[SME@search-10 ~]$ df -Th
Filesystem Type Size Used Avail Use% Mounted on
devtmpfs devtmpfs 94G 0 94G 0% /dev
tmpfs tmpfs 94G 0 94G 0% /dev/shm
tmpfs tmpfs 94G 18M 94G 1% /run
tmpfs tmpfs 94G 0 94G 0% /sys/fs/cgroup
/dev/sda3 ext4 7.6G 2.6G 4.6G 36% /
/dev/sda2 ext4 2.0G 389M 1.5G 22% /boot
/dev/sda4 ext4 1.7T 60K 1.6T 1% /home/search
tmpfs tmpfs 19G 0 19G 0% /run/user/0
tmpfs tmpfs 19G 0 19G 0% /run/user/1006
[SME@search-10 ~]$ sudo fdisk -l
Disk /dev/sda: 2.6 TiB, 2876997894144 bytes, 5619136512 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 262144 bytes / 786432 bytes
Disklabel type: gpt
Disk identifier: 40992439-8FB1-4EF3-AF5D-0B180C07EA05
Device Start End Sectors Size Type
/dev/sda1 2048 4095 2048 1M BIOS boot
/dev/sda2 4096 4198399 4194304 2G Linux filesystem
/dev/sda3 4198400 2101350399 2097152000 1000G Linux filesystem
/dev/sda4 2101350400 5619003391 3517652992 1.7T Microsoft basic data
/dev/sda5 5619003392 5619136478 133087 65M Linux filesystem
由于是根分区，无法重新格式化，且重新通过分配之后，重启也无法获得扩展，如下所示：
[SME@search-10 ~]$ sudo fdisk /dev/sda
Welcome to fdisk (util-linux 2.32.1).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): p
Disk /dev/sda: 2.6 TiB, 2876997894144 bytes, 5619136512 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 262144 bytes / 786432 bytes
Disklabel type: gpt
Disk identifier: 40992439-8FB1-4EF3-AF5D-0B180C07EA05
Device Start End Sectors Size Type
/dev/sda1 2048 4095 2048 1M BIOS boot
/dev/sda2 4096 4198399 4194304 2G Linux filesystem
/dev/sda3 4198400 2101350399 2097152000 1000G Linux filesystem
/dev/sda4 2101350400 5619003391 3517652992 1.7T Microsoft basic data
/dev/sda5 5619003392 5619136478 133087 65M Linux filesystem
Command (m for help): d
Partition number (1-5, default 5): 3
Partition 3 has been deleted.
Command (m for help): p
Disk /dev/sda: 2.6 TiB, 2876997894144 bytes, 5619136512 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 262144 bytes / 786432 bytes
Disklabel type: gpt
Disk identifier: 40992439-8FB1-4EF3-AF5D-0B180C07EA05
Device Start End Sectors Size Type
/dev/sda1 2048 4095 2048 1M BIOS boot
/dev/sda2 4096 4198399 4194304 2G Linux filesystem
/dev/sda4 2101350400 5619003391 3517652992 1.7T Microsoft basic data
/dev/sda5 5619003392 5619136478 133087 65M Linux filesystem
Command (m for help): n
Partition number (3,6-128, default 3):
First sector (4198400-2101350399, default 4198400):
Last sector, +sectors or +size{K,M,G,T,P} (4198400-2101350399, default 2101350399):
Created a new partition 3 of type 'Linux filesystem' and of size 1000 GiB.
Partition #3 contains a ext4 signature.
Do you want to remove the signature? [Y]es/[N]o: Y
The signature will be removed by a write command.
Command (m for help): p
Disk /dev/sda: 2.6 TiB, 2876997894144 bytes, 5619136512 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 262144 bytes / 786432 bytes
Disklabel type: gpt
Disk identifier: 40992439-8FB1-4EF3-AF5D-0B180C07EA05
Device Start End Sectors Size Type
/dev/sda1 2048 4095 2048 1M BIOS boot
/dev/sda2 4096 4198399 4194304 2G Linux filesystem
/dev/sda3 4198400 2101350399 2097152000 1000G Linux filesystem
/dev/sda4 2101350400 5619003391 3517652992 1.7T Microsoft basic data
/dev/sda5 5619003392 5619136478 133087 65M Linux filesystem
Filesystem/RAID signature on partition 3 will be wiped.
Command (m for help): w
The partition table has been altered.
Syncing disks.
[SME@search-10 ~]$ sudo partprobe /dev/sda
Warning: The disk CHS geometry (11017914,255,2) reported by the operating system does not match the geometry stored on the disk label (22095,255,63).
Error: Can't have overlapping partitions.
于是，尝试使用resize2fs，如下所示：
[SME@search-10 ~]$ sudo resize2fs /dev/sda3
resize2fs 1.45.6 (20-Mar-2020)
Filesystem at /dev/sda3 is mounted on /; on-line resizing required
old_desc_blocks = 1, new_desc_blocks = 125
The filesystem on /dev/sda3 is now 262144000 (4k) blocks long.
[SME@search-10 ~]$ df -Th
Filesystem Type Size Used Avail Use% Mounted on
devtmpfs devtmpfs 94G 0 94G 0% /dev
tmpfs tmpfs 94G 0 94G 0% /dev/shm
tmpfs tmpfs 94G 18M 94G 1% /run
tmpfs tmpfs 94G 0 94G 0% /sys/fs/cgroup
/dev/sda3 ext4 985G 2.6G 942G 1% /
/dev/sda2 ext4 2.0G 389M 1.5G 22% /boot
/dev/sda4 ext4 1.7T 60K 1.6T 1% /home/search
tmpfs tmpfs 19G 0 19G 0% /run/user/0
