Resize-rootfs

Resizing a root-filesystem

1. Increasing the size of a root-filesystem:

 > 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. Downsizing a root-filesystem:
• 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    # Change the filesystem type to your needs (ext3, etc)

• 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