Resize-rootfs

Resizyng a root-file-system

1. Increasing the size of a root-file-system:

 > e2fsck -f root_fs_tutorial-0.31
 > dd if=/dev/zero of=root_fs_tutorial-0.31 bs=1 count=1 seek=550M conv=notrunc
 > resize2fs -p root_fs_tutorial-0.31
 > e2fsck -f root_fs_tutorial-0.31




2. Downsizyng a rootfilesystem:
   • Create a new rootfilesystem with the size you want your filesystem to have:

   > dd if=/dev/zero of=newfs bs=1 count=1 seek=1200M conv=notrunc > mkfs -t ext2 newfs

   • Copy the old filesystem content to the new one:

   > mount -o loop oldfs /mnt/old/ > mount -o loop newfs /mnt/new

          > cp -a /mnt/old/* /mnt/new/
   

   > umount /mnt/old > umount /mnt/new