Resizing a partition vs resizing a filesystem

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In a recent interview I was asked how can you resize a partition which is not a part of LVM?



For which I answer you can use GParted. Then the interviewer asked me how would you resize (extend) a file system and not the partition?



For which I said you can unmount the filesystem and resize the underlying partition and remount it, but he said I am wront.



I really thought that resizing a partition and resizing a filesystem is the same thing since filesystem sits on top of partition.



Can someone please help me understand what he meant by resizing the filesystem? I couldn't get my head around it






filesystems partition







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  • Check out the resize2fs tool in the case of ext2/3/4 filesystems. Also: askubuntu.com/a/115337/158442
    – muru
    2 hours ago















up vote
1
down vote

favorite












In a recent interview I was asked how can you resize a partition which is not a part of LVM?



For which I answer you can use GParted. Then the interviewer asked me how would you resize (extend) a file system and not the partition?



For which I said you can unmount the filesystem and resize the underlying partition and remount it, but he said I am wront.



I really thought that resizing a partition and resizing a filesystem is the same thing since filesystem sits on top of partition.



Can someone please help me understand what he meant by resizing the filesystem? I couldn't get my head around it






filesystems partition







share|improve this question





















  • Check out the resize2fs tool in the case of ext2/3/4 filesystems. Also: askubuntu.com/a/115337/158442
    – muru
    2 hours ago













up vote
1
down vote

favorite









up vote
1
down vote

favorite











In a recent interview I was asked how can you resize a partition which is not a part of LVM?



For which I answer you can use GParted. Then the interviewer asked me how would you resize (extend) a file system and not the partition?



For which I said you can unmount the filesystem and resize the underlying partition and remount it, but he said I am wront.



I really thought that resizing a partition and resizing a filesystem is the same thing since filesystem sits on top of partition.



Can someone please help me understand what he meant by resizing the filesystem? I couldn't get my head around it






filesystems partition







share|improve this question













In a recent interview I was asked how can you resize a partition which is not a part of LVM?



For which I answer you can use GParted. Then the interviewer asked me how would you resize (extend) a file system and not the partition?



For which I said you can unmount the filesystem and resize the underlying partition and remount it, but he said I am wront.



I really thought that resizing a partition and resizing a filesystem is the same thing since filesystem sits on top of partition.



Can someone please help me understand what he meant by resizing the filesystem? I couldn't get my head around it






filesystems partition




filesystems partition






share|improve this question













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asked 2 hours ago









MaverickD

484




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  • Check out the resize2fs tool in the case of ext2/3/4 filesystems. Also: askubuntu.com/a/115337/158442
    – muru
    2 hours ago

















  • Check out the resize2fs tool in the case of ext2/3/4 filesystems. Also: askubuntu.com/a/115337/158442
    – muru
    2 hours ago
















Check out the resize2fs tool in the case of ext2/3/4 filesystems. Also: askubuntu.com/a/115337/158442
– muru
2 hours ago





Check out the resize2fs tool in the case of ext2/3/4 filesystems. Also: askubuntu.com/a/115337/158442
– muru
2 hours ago











1 Answer
1






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up vote
2
down vote













A filesystem is on a partition/device/volume/some other container. It has a fixed size, usually the same as the container. You need to extend the filesystem size as well after extending the underlying container.






share|improve this answer




















  • If the partition is already resized why resize2fs is required? can you please explain with example. I want to actually see it happening in my centos. I mean what recreating a parition how can I see my filesystem is not resized and how can i see it effect after running resize2fs
    – MaverickD
    1 hour ago










  • RedHat documentation has good examples: How to Resize a Partition using fdisk and How to Grow an ext2/3/4 File System with resize2fs. If you resize the partition and then mount the filesystem, it should still report the old size (in du etc).
    – sebasth
    1 hour ago










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1 Answer
1






active

oldest

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1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes








up vote
2
down vote













A filesystem is on a partition/device/volume/some other container. It has a fixed size, usually the same as the container. You need to extend the filesystem size as well after extending the underlying container.






share|improve this answer




















  • If the partition is already resized why resize2fs is required? can you please explain with example. I want to actually see it happening in my centos. I mean what recreating a parition how can I see my filesystem is not resized and how can i see it effect after running resize2fs
    – MaverickD
    1 hour ago










  • RedHat documentation has good examples: How to Resize a Partition using fdisk and How to Grow an ext2/3/4 File System with resize2fs. If you resize the partition and then mount the filesystem, it should still report the old size (in du etc).
    – sebasth
    1 hour ago














up vote
2
down vote













A filesystem is on a partition/device/volume/some other container. It has a fixed size, usually the same as the container. You need to extend the filesystem size as well after extending the underlying container.






share|improve this answer




















  • If the partition is already resized why resize2fs is required? can you please explain with example. I want to actually see it happening in my centos. I mean what recreating a parition how can I see my filesystem is not resized and how can i see it effect after running resize2fs
    – MaverickD
    1 hour ago










  • RedHat documentation has good examples: How to Resize a Partition using fdisk and How to Grow an ext2/3/4 File System with resize2fs. If you resize the partition and then mount the filesystem, it should still report the old size (in du etc).
    – sebasth
    1 hour ago












up vote
2
down vote










up vote
2
down vote









A filesystem is on a partition/device/volume/some other container. It has a fixed size, usually the same as the container. You need to extend the filesystem size as well after extending the underlying container.






share|improve this answer












A filesystem is on a partition/device/volume/some other container. It has a fixed size, usually the same as the container. You need to extend the filesystem size as well after extending the underlying container.







share|improve this answer












share|improve this answer



share|improve this answer










answered 2 hours ago









sebasth

7,43131745




7,43131745











  • If the partition is already resized why resize2fs is required? can you please explain with example. I want to actually see it happening in my centos. I mean what recreating a parition how can I see my filesystem is not resized and how can i see it effect after running resize2fs
    – MaverickD
    1 hour ago










  • RedHat documentation has good examples: How to Resize a Partition using fdisk and How to Grow an ext2/3/4 File System with resize2fs. If you resize the partition and then mount the filesystem, it should still report the old size (in du etc).
    – sebasth
    1 hour ago
















  • If the partition is already resized why resize2fs is required? can you please explain with example. I want to actually see it happening in my centos. I mean what recreating a parition how can I see my filesystem is not resized and how can i see it effect after running resize2fs
    – MaverickD
    1 hour ago










  • RedHat documentation has good examples: How to Resize a Partition using fdisk and How to Grow an ext2/3/4 File System with resize2fs. If you resize the partition and then mount the filesystem, it should still report the old size (in du etc).
    – sebasth
    1 hour ago















If the partition is already resized why resize2fs is required? can you please explain with example. I want to actually see it happening in my centos. I mean what recreating a parition how can I see my filesystem is not resized and how can i see it effect after running resize2fs
– MaverickD
1 hour ago




If the partition is already resized why resize2fs is required? can you please explain with example. I want to actually see it happening in my centos. I mean what recreating a parition how can I see my filesystem is not resized and how can i see it effect after running resize2fs
– MaverickD
1 hour ago












RedHat documentation has good examples: How to Resize a Partition using fdisk and How to Grow an ext2/3/4 File System with resize2fs. If you resize the partition and then mount the filesystem, it should still report the old size (in du etc).
– sebasth
1 hour ago




RedHat documentation has good examples: How to Resize a Partition using fdisk and How to Grow an ext2/3/4 File System with resize2fs. If you resize the partition and then mount the filesystem, it should still report the old size (in du etc).
– sebasth
1 hour ago

















 

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