Using Ubuntu Mint here, 20.1 Cinnamon.
I'm trying to reduce a SD partition as much as possible, but when use resize2fs
sudo e2fsck -f /dev/sdb2
sudo resize2fs -M /dev/sdb2
it resizes the partition to around 7 GB rather than the expected around 5 GB. df confirms as much:
/dev/sdb2 6,4G 4,4G 1,7G 73%
It is the last partition (sdb1 is the system-boot partition).
Why is it showing that behavior? I would expect it to be a lot closer to the actual filesystem.
The result of the tune2fs command is the following:
Filesystem volume name: writable
Last mounted on: /
Filesystem UUID: b09bb4c8-de4d-4ce6-a93f-30c4c9241a58
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal ext_attr resize_inode dir_index filetype extent 64bit flex_bg sparse_super large_file huge_file dir_nlink extra_isize metadata_csum
Filesystem flags: unsigned_directory_hash
Default mount options: user_xattr acl
Filesystem state: clean
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 417664
Block count: 1688722
Reserved block count: 69406
Overhead blocks: 34024
Free blocks: 512908
Free inodes: 294800
First block: 0
Block size: 4096
Fragment size: 4096
Group descriptor size: 64
Reserved GDT blocks: 439
Blocks per group: 32768
Fragments per group: 32768
Inodes per group: 8032
Inode blocks per group: 502
Flex block group size: 16
Filesystem created: Tue Aug 9 14:05:18 2022
Last mount time: Mon Feb 13 23:27:27 2023
Last write time: Mon Feb 13 23:27:41 2023
Mount count: 2
Maximum mount count: -1
Last checked: Mon Feb 13 17:13:10 2023
Check interval: 0 (<none>)
Lifetime writes: 10 GB
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)
First inode: 11
Inode size: 256
Required extra isize: 32
Desired extra isize: 32
Journal inode: 8
Default directory hash: half_md4
Directory Hash Seed: 24701edc-0cdd-48cd-a0ff-573147f7acac
Journal backup: inode blocks
Checksum type: crc32c
Checksum: 0x174a0a99
