Step 1 – Preparations
Check the current partition table (it should look similar to this depending on the model):
#fdisk -l /dev/sda
Result:
Disk /dev/sdb: 102.4 GB, 102399737856 bytes
255 heads, 63 sectors/track, 12449 cylinders, total 199999488 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 identifier: 0x00051eb3
Device Boot Start End Blocks Id System
/dev/sda1 2048 52426752 26212352+ 83 Linux
Step 2 – Checking the File System
Check the file system with:
# e2fsck -f -C0 /dev/sda1
Result:
e2fsck 1.42.5 (29-Jul-2012)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
/dev/sdb1: 26283/1638400 files (5.6% non-contiguous), 283813/6553088 blocks
Step 3 – Resizing the File System
Resize the file system with:
# resize2fs /dev/sda1
Result:
resize2fs 1.42.5 (29-Jul-2012)
Resizing the filesystem on /dev/sda1 to 24999680 (4k) blocks.
The filesystem on /dev/sda1 is now 24999680 blocks long.
Reboot and check if the disk is larger.
