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Difference between File system created by fdisk and file system created by mkfs - linux

file size returned from ls - Linux vs OS XVMWare performance difference between using physical disk and virtual disk (VMFS)What's the difference between mounted file system and active file system?What is the difference between Ubuntu, Xubuntu, and LubuntuCreating a FAT file system and save it into a file in GNU/linux?Is there a difference between Windows-created NTFS and Gparted-created NTFS?What is the difference between partitioning and formatting a disk?huge difference between the filesystem size and the data size in a .image data. And I cannot shrink itWhy the new hard drive has to be partitioned if I don't need any logical partitions?Difference between UEFI USB Boot and UEFI Hard disk Boot

6

2

I'm a little bit confused with partitioning the filesystem in Linux.

Please tell me the difference between creating the file system with fdisk and mkfs (when formatting the disk).

I can't clearly tell my problem, so please look at this picture:

linux partitioning filesystems

share|improve this question

edited Aug 1 '11 at 16:58

Lance Roberts

6,98684175

asked Aug 1 '11 at 16:50

Hieu M. NguyenHieu M. Nguyen

4502613

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Honestly, just use gparted and save yourself the confusion.
  
  – user606723
  Aug 1 '11 at 17:00
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Well, there're so many tools that I can use to handle these problems. But here I just wanna understand a bit more about the inside =)))
  
  – Hieu M. Nguyen
  Aug 1 '11 at 17:24
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  In that case, you should've said that in your question. Currently it sounds you're having an issue setting up your partitions.. not that you want to understand whats going on. There is a difference.
  
  – user606723
  Aug 1 '11 at 17:27
  

  
  
  
  

add a comment | 

6

2

I'm a little bit confused with partitioning the filesystem in Linux.

Please tell me the difference between creating the file system with fdisk and mkfs (when formatting the disk).

I can't clearly tell my problem, so please look at this picture:

linux partitioning filesystems

share|improve this question

edited Aug 1 '11 at 16:58

Lance Roberts

6,98684175

asked Aug 1 '11 at 16:50

Hieu M. NguyenHieu M. Nguyen

4502613

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Honestly, just use gparted and save yourself the confusion.
  
  – user606723
  Aug 1 '11 at 17:00
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Well, there're so many tools that I can use to handle these problems. But here I just wanna understand a bit more about the inside =)))
  
  – Hieu M. Nguyen
  Aug 1 '11 at 17:24
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  In that case, you should've said that in your question. Currently it sounds you're having an issue setting up your partitions.. not that you want to understand whats going on. There is a difference.
  
  – user606723
  Aug 1 '11 at 17:27
  

  
  
  
  

add a comment | 

I'm a little bit confused with partitioning the filesystem in Linux.

Please tell me the difference between creating the file system with fdisk and mkfs (when formatting the disk).

I can't clearly tell my problem, so please look at this picture:

linux partitioning filesystems

share|improve this question

edited Aug 1 '11 at 16:58

Lance Roberts

6,98684175

asked Aug 1 '11 at 16:50

Hieu M. NguyenHieu M. Nguyen

4502613

share|improve this question

edited Aug 1 '11 at 16:58

Lance Roberts

6,98684175

asked Aug 1 '11 at 16:50

Hieu M. NguyenHieu M. Nguyen

4502613

share|improve this question

edited Aug 1 '11 at 16:58

Lance Roberts

6,98684175

asked Aug 1 '11 at 16:50

Hieu M. NguyenHieu M. Nguyen

4502613

edited Aug 1 '11 at 16:58

Lance Roberts

6,98684175

edited Aug 1 '11 at 16:58

Lance Roberts

6,98684175

asked Aug 1 '11 at 16:50

Hieu M. NguyenHieu M. Nguyen

4502613

asked Aug 1 '11 at 16:50

Hieu M. NguyenHieu M. Nguyen

4502613

3 Answers
3

active

oldest

votes

14

Fdisk partitions your hard drive. It sets up partitions on the disk by creating a partition table.

mkfs formats the partition after it has been created. It formats it based on a specific filesystem like NTFS, FAT32, Unix ext2 & ext2.

So fdisk isn't really creating a filesystem, it's setting up the hard drive so that a filesystem can be created on it. I'm not sure I see a problem in your picture, did you not want NTFS?

share|improve this answer

edited Aug 1 '11 at 17:34

Mike Insch

2,263118

answered Aug 1 '11 at 17:04

Lance RobertsLance Roberts

6,98684175

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  So fdisk does not create the file system, right? I use fdisk to create a partition with ext4, ext2,.. types and I use mkfs.ntfs to format the disk. I wonder, which is actually the file system? ext4 or ntfs?
  
  – Hieu M. Nguyen
  Aug 1 '11 at 17:27
  
  
  

  
  
  
  


• 
  
  
  

  
  3
  

  
  
  
  
  
  

  
  
  NTFS is the filesystem.
  
  – Lance Roberts
  Aug 1 '11 at 17:32
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @Hieusun2011: if you're familiar with DOS, mkfs in Linux is like FORMAT in DOS, and fdisk in Linux is like FDISK in DOS. If you're familiar with the Disk Mgmt tool in Windows, it has one GUI for both but partitioning a disk and formatting a partition are still separate steps there. The basic concepts are the same, and this was intentional, to support dual-booting.
  
  – gatkin
  Aug 1 '11 at 17:53
  

  
  
  
  

add a comment | 

11

To use an analogy, think of fdisk as setting up the fences around your garden with small fences separating the areas that you want to have for grass, fruit trees and vegetables. While it sets up these walls (partitons) for you it does not actually put anything in those spaces.

Then you use mkfs to format those areas into the ways that you are wanting, you choose your filesystem (be it grass, fruit or vegetable) and mkfs puts it all in place and makes it usable.

What you are seeing in "partition type" is a legacy identifier that tells the system what type of operating system is likely to be able to read the contents, this is mainly so that an operating system such as Windows can quickly look at the partition type and (if it is a type it does not understand) then it can quickly move to the next partition to check that for filesystems. This does not stop the operating system from going further and actually checking the filesystem itself to see if it can read it, it just gives the OS an idea what to expect.

You can still put a Windows filesystem (NTFS) in a Linux (type 83) partition as you have done but whether or not any operating system chooses to read or ignore it is up to the designers of that operating system.

share|improve this answer

edited Aug 1 '11 at 17:41

answered Aug 1 '11 at 17:26

Mokubai♦Mokubai

58.1k16139157

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Does and can an operating system such as Windows only the partition type and not proceed further? If yes, does this mean that the contents would remain inaccessible until the partition type is updated?
  
  – Motivated
  Dec 27 '18 at 17:45
  

  
  
  
  

add a comment | 

0

sdb--fdisk--(sdb1,sdb2)--vg--lv--mkfs (partition,lvm)

sdb--fdisk--(sdb1,sdb2)--mkfs (partition,no lvm)

sdb--pvcreate--sdb1--vg--lv--mkfs (no partition,lvm)

sdb--pvcreate--sdb1--mkfs (no partition,no lvm)

share

answered 4 mins ago

zhi qiang weizhi qiang wei

1

New contributor

zhi qiang wei is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

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14

Fdisk partitions your hard drive. It sets up partitions on the disk by creating a partition table.

mkfs formats the partition after it has been created. It formats it based on a specific filesystem like NTFS, FAT32, Unix ext2 & ext2.

So fdisk isn't really creating a filesystem, it's setting up the hard drive so that a filesystem can be created on it. I'm not sure I see a problem in your picture, did you not want NTFS?

share|improve this answer

edited Aug 1 '11 at 17:34

Mike Insch

2,263118

answered Aug 1 '11 at 17:04

Lance RobertsLance Roberts

6,98684175

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  So fdisk does not create the file system, right? I use fdisk to create a partition with ext4, ext2,.. types and I use mkfs.ntfs to format the disk. I wonder, which is actually the file system? ext4 or ntfs?
  
  – Hieu M. Nguyen
  Aug 1 '11 at 17:27
  
  
  

  
  
  
  


• 
  
  
  

  
  3
  

  
  
  
  
  
  

  
  
  NTFS is the filesystem.
  
  – Lance Roberts
  Aug 1 '11 at 17:32
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @Hieusun2011: if you're familiar with DOS, mkfs in Linux is like FORMAT in DOS, and fdisk in Linux is like FDISK in DOS. If you're familiar with the Disk Mgmt tool in Windows, it has one GUI for both but partitioning a disk and formatting a partition are still separate steps there. The basic concepts are the same, and this was intentional, to support dual-booting.
  
  – gatkin
  Aug 1 '11 at 17:53
  

  
  
  
  

add a comment | 

14

Fdisk partitions your hard drive. It sets up partitions on the disk by creating a partition table.

mkfs formats the partition after it has been created. It formats it based on a specific filesystem like NTFS, FAT32, Unix ext2 & ext2.

So fdisk isn't really creating a filesystem, it's setting up the hard drive so that a filesystem can be created on it. I'm not sure I see a problem in your picture, did you not want NTFS?

share|improve this answer

edited Aug 1 '11 at 17:34

Mike Insch

2,263118

answered Aug 1 '11 at 17:04

Lance RobertsLance Roberts

6,98684175

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  So fdisk does not create the file system, right? I use fdisk to create a partition with ext4, ext2,.. types and I use mkfs.ntfs to format the disk. I wonder, which is actually the file system? ext4 or ntfs?
  
  – Hieu M. Nguyen
  Aug 1 '11 at 17:27
  
  
  

  
  
  
  


• 
  
  
  

  
  3
  

  
  
  
  
  
  

  
  
  NTFS is the filesystem.
  
  – Lance Roberts
  Aug 1 '11 at 17:32
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @Hieusun2011: if you're familiar with DOS, mkfs in Linux is like FORMAT in DOS, and fdisk in Linux is like FDISK in DOS. If you're familiar with the Disk Mgmt tool in Windows, it has one GUI for both but partitioning a disk and formatting a partition are still separate steps there. The basic concepts are the same, and this was intentional, to support dual-booting.
  
  – gatkin
  Aug 1 '11 at 17:53
  

  
  
  
  

add a comment | 

Fdisk partitions your hard drive. It sets up partitions on the disk by creating a partition table.

mkfs formats the partition after it has been created. It formats it based on a specific filesystem like NTFS, FAT32, Unix ext2 & ext2.

So fdisk isn't really creating a filesystem, it's setting up the hard drive so that a filesystem can be created on it. I'm not sure I see a problem in your picture, did you not want NTFS?

share|improve this answer

edited Aug 1 '11 at 17:34

Mike Insch

2,263118

answered Aug 1 '11 at 17:04

Lance RobertsLance Roberts

6,98684175

share|improve this answer

edited Aug 1 '11 at 17:34

Mike Insch

2,263118

answered Aug 1 '11 at 17:04

Lance RobertsLance Roberts

6,98684175

edited Aug 1 '11 at 17:34

Mike Insch

2,263118

edited Aug 1 '11 at 17:34

Mike Insch

2,263118

answered Aug 1 '11 at 17:04

Lance RobertsLance Roberts

6,98684175

answered Aug 1 '11 at 17:04

Lance RobertsLance Roberts

6,98684175

11

To use an analogy, think of fdisk as setting up the fences around your garden with small fences separating the areas that you want to have for grass, fruit trees and vegetables. While it sets up these walls (partitons) for you it does not actually put anything in those spaces.

Then you use mkfs to format those areas into the ways that you are wanting, you choose your filesystem (be it grass, fruit or vegetable) and mkfs puts it all in place and makes it usable.

What you are seeing in "partition type" is a legacy identifier that tells the system what type of operating system is likely to be able to read the contents, this is mainly so that an operating system such as Windows can quickly look at the partition type and (if it is a type it does not understand) then it can quickly move to the next partition to check that for filesystems. This does not stop the operating system from going further and actually checking the filesystem itself to see if it can read it, it just gives the OS an idea what to expect.

You can still put a Windows filesystem (NTFS) in a Linux (type 83) partition as you have done but whether or not any operating system chooses to read or ignore it is up to the designers of that operating system.

share|improve this answer

edited Aug 1 '11 at 17:41

answered Aug 1 '11 at 17:26

Mokubai♦Mokubai

58.1k16139157

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Does and can an operating system such as Windows only the partition type and not proceed further? If yes, does this mean that the contents would remain inaccessible until the partition type is updated?
  
  – Motivated
  Dec 27 '18 at 17:45
  

  
  
  
  

add a comment | 

11

To use an analogy, think of fdisk as setting up the fences around your garden with small fences separating the areas that you want to have for grass, fruit trees and vegetables. While it sets up these walls (partitons) for you it does not actually put anything in those spaces.

Then you use mkfs to format those areas into the ways that you are wanting, you choose your filesystem (be it grass, fruit or vegetable) and mkfs puts it all in place and makes it usable.

What you are seeing in "partition type" is a legacy identifier that tells the system what type of operating system is likely to be able to read the contents, this is mainly so that an operating system such as Windows can quickly look at the partition type and (if it is a type it does not understand) then it can quickly move to the next partition to check that for filesystems. This does not stop the operating system from going further and actually checking the filesystem itself to see if it can read it, it just gives the OS an idea what to expect.

You can still put a Windows filesystem (NTFS) in a Linux (type 83) partition as you have done but whether or not any operating system chooses to read or ignore it is up to the designers of that operating system.

share|improve this answer

edited Aug 1 '11 at 17:41

answered Aug 1 '11 at 17:26

Mokubai♦Mokubai

58.1k16139157

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Does and can an operating system such as Windows only the partition type and not proceed further? If yes, does this mean that the contents would remain inaccessible until the partition type is updated?
  
  – Motivated
  Dec 27 '18 at 17:45
  

  
  
  
  

add a comment | 

To use an analogy, think of fdisk as setting up the fences around your garden with small fences separating the areas that you want to have for grass, fruit trees and vegetables. While it sets up these walls (partitons) for you it does not actually put anything in those spaces.

Then you use mkfs to format those areas into the ways that you are wanting, you choose your filesystem (be it grass, fruit or vegetable) and mkfs puts it all in place and makes it usable.

What you are seeing in "partition type" is a legacy identifier that tells the system what type of operating system is likely to be able to read the contents, this is mainly so that an operating system such as Windows can quickly look at the partition type and (if it is a type it does not understand) then it can quickly move to the next partition to check that for filesystems. This does not stop the operating system from going further and actually checking the filesystem itself to see if it can read it, it just gives the OS an idea what to expect.

You can still put a Windows filesystem (NTFS) in a Linux (type 83) partition as you have done but whether or not any operating system chooses to read or ignore it is up to the designers of that operating system.

share|improve this answer

edited Aug 1 '11 at 17:41

answered Aug 1 '11 at 17:26

Mokubai♦Mokubai

58.1k16139157

share|improve this answer

edited Aug 1 '11 at 17:41

answered Aug 1 '11 at 17:26

Mokubai♦Mokubai

58.1k16139157

answered Aug 1 '11 at 17:26

Mokubai♦Mokubai

58.1k16139157

answered Aug 1 '11 at 17:26

Mokubai♦Mokubai

58.1k16139157

0

sdb--fdisk--(sdb1,sdb2)--vg--lv--mkfs (partition,lvm)

sdb--fdisk--(sdb1,sdb2)--mkfs (partition,no lvm)

sdb--pvcreate--sdb1--vg--lv--mkfs (no partition,lvm)

sdb--pvcreate--sdb1--mkfs (no partition,no lvm)

share

answered 4 mins ago

zhi qiang weizhi qiang wei

1

New contributor

zhi qiang wei is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

0

sdb--fdisk--(sdb1,sdb2)--vg--lv--mkfs (partition,lvm)

sdb--fdisk--(sdb1,sdb2)--mkfs (partition,no lvm)

sdb--pvcreate--sdb1--vg--lv--mkfs (no partition,lvm)

sdb--pvcreate--sdb1--mkfs (no partition,no lvm)

share

answered 4 mins ago

zhi qiang weizhi qiang wei

1

New contributor

zhi qiang wei is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

sdb--fdisk--(sdb1,sdb2)--vg--lv--mkfs (partition,lvm)

sdb--fdisk--(sdb1,sdb2)--mkfs (partition,no lvm)

sdb--pvcreate--sdb1--vg--lv--mkfs (no partition,lvm)

sdb--pvcreate--sdb1--mkfs (no partition,no lvm)

share

answered 4 mins ago

zhi qiang weizhi qiang wei

1

New contributor

zhi qiang wei is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share

answered 4 mins ago

zhi qiang weizhi qiang wei

1

New contributor

zhi qiang wei is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

answered 4 mins ago

zhi qiang weizhi qiang wei

1

New contributor

zhi qiang wei is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

answered 4 mins ago

zhi qiang weizhi qiang wei

1