Circlean/resize_img.md

Add empty space to the image
============================

* Add 2Gb

```
    > dd if=/dev/zero bs=1024k count=2048 >> 2015-02-16-raspbian-wheezy.img
```

Expand partition size
=====================

```
    > fdisk 2015-02-16-raspbian-wheezy.img

    Command (m for help): *p*

    Disk 2013-02-09-wheezy-raspbian.img: 4087 MB, 4087349248 bytes
    255 heads, 63 sectors/track, 496 cylinders, total 7983104 sectors
    Units = sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0x00014d34

                             Device Boot      Start         End      Blocks   Id  System
    2015-02-16-raspbian-wheezy.img1            8192      122879       57344    c  W95 FAT32 (LBA)
    2015-02-16-raspbian-wheezy.img2          *122880*     3788799     1832960   83  Linux

    Command (m for help): *d*
    Partition number (1-4): *2*

    Command (m for help): *n*
    Partition type:
       p   primary (1 primary, 0 extended, 3 free)
       e   extended
    Select (default p):
    Partition number (1-4, default 2):
    First sector (2048-7983103, default 2048): *122880*
    Last sector, +sectors or +size{K,M,G} (122880-7983103, default 7983103):
    Using default value 7983103

    Command (m for help): *w*
    The partition table has been altered!

    Syncing disks.
```

Resize partition
================

* Chroot in the image

```
    sudo ./proper_chroot.sh
```

* Resize the partition (not from the chroot)

```
    > df | grep /mnt/arm

    /dev/loop0                3927752   1955672   1794172  53% /mnt/arm_rPi
    /dev/loop1                  57288     18960     38328  34% /mnt/arm_rPi/boot

    > sudo resize2fs /dev/loop0
```