Help - Copying root partition increased used size by 80MB

[TheMisterC]

Is this typical?

Ok. I've been using Gentoo for several years, and yes I this is my first post.

I decided to start using jfs on my laptop instead for reiserfs and resize the root partition from 4 gb to 16 gb. Here is what I did to convert it.

1. Boot the system using a different root partition (actually I used a ubuntu partition running coLinux)

2. Create an image file of the old partition - dd if=/dev/hda(the Gentoo Partition) of=/(a place with 4 gb free)

3. Delete and create a 16 gb partition (while resizing the other partitions on the harddrive)

4. Boot the system in ubuntu under coLinux again

5. mkfs -t jfs /dev/hda(gentoo)

6. mount /dev/hda(gentoo) as /mnt/gentoo

7. mount the old gentoo image file using loop0

8. cp -ax (the img file) /mnt/gentoo

After doing all that there is a size increase of 80 MB.

Did I do something wrong? Does jfs allocate space differently than reiserfs? Did /dev get copied?

Help

Thanks

--MrC

[nixnut]

reiserfs uses allocates space differently from jfs. And if you increased the size of the partition jfs may have chosen a larger blocksize as well (but probably not in this case).
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[TheMisterC]

Thanks,

MrC