By default when Kali Linux for the Rapsberry Pi is installed the file system will only expand to occupy 3GB of storage, in my case I have a 16GB Micro SD card in my Raspberry Pi 2 with most of its capacity unused. One can easily expand the file system by making use of a script that automatically does the job for you.
File system after install.
root@kali:~# df -h Filesystem Size Used Avail Use% Mounted on rootfs 2.9G 1.5G 1.2G 56% / /dev/root 2.9G 1.5G 1.2G 56% / devtmpfs 460M 0 460M 0% /dev tmpfs 93M 468K 93M 1% /run tmpfs 5.0M 0 5.0M 0% /run/lock tmpfs 186M 0 186M 0% /run/shm
I should note I did not create the script and found it at the following address http://www.raspberryvi.org/wiki/doku.php/raspi-expand-rootfs but it has proven useful.
Download the script into the boot directory. Locally hosted.
root@kali:~# wget -O /boot/raspi-expand-rootfs.sh http://dl.linhost.info/file1/raspi-expand-rootfs.sh
Now we make the script executable.
root@kali:~# chmod +x /boot/raspi-expand-rootfs.sh
And execute the script. Don’t be scared by the output.
root@kali:~# sh /boot/raspi-expand-rootfs.sh
Command (m for help): Disk /dev/mmcblk0: 15.9 GB, 15931539456 bytes 4 heads, 16 sectors/track, 486192 cylinders, total 31116288 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: 0x000697c0 Device Boot Start End Blocks Id System /dev/mmcblk0p1 1 125000 62500 c W95 FAT32 (LBA) /dev/mmcblk0p2 125001 6143999 3009499+ 83 Linux Command (m for help): Partition number (1-4): Command (m for help): Partition type: p primary (1 primary, 0 extended, 3 free) e extended Select (default p): Partition number (1-4, default 2): First sector (125001-31116287, default 125001): Last sector, +sectors or +size{K,M,G} (125001-31116287, default 31116287): Using default value 31116287 Command (m for help): Disk /dev/mmcblk0: 15.9 GB, 15931539456 bytes 4 heads, 16 sectors/track, 486192 cylinders, total 31116288 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: 0x000697c0 Device Boot Start End Blocks Id System /dev/mmcblk0p1 1 125000 62500 c W95 FAT32 (LBA) /dev/mmcblk0p2 125001 31116287 15495643+ 83 Linux Command (m for help): The partition table has been altered! Calling ioctl() to re-read partition table. WARNING: Re-reading the partition table failed with error 16: Device or resource busy. The kernel still uses the old table. The new table will be used at the next reboot or after you run partprobe(8) or kpartx(8) Syncing disks. update-rc.d: using dependency based boot sequencing update-rc.d: warning: default start runlevel arguments (2 3 4 5) do not match resize2fs_once Default-Start values (2 3 4 5 S) update-rc.d: warning: default stop runlevel arguments (0 1 6) do not match resize2fs_once Default-Stop values (none) Root partition has been resized. The filesystem will be enlarged upon the next reboot
It is necessary to reboot the OS for the changes to take effect.
root@kali:~# reboot
Once again us the df command to verify the file system successfully expanded.
root@kali:~# df -h Filesystem Size Used Avail Use% Mounted on rootfs 15G 1.5G 13G 11% / /dev/root 15G 1.5G 13G 11% / devtmpfs 460M 0 460M 0% /dev tmpfs 93M 468K 93M 1% /run tmpfs 5.0M 4.0K 5.0M 1% /run/lock tmpfs 186M 0 186M 0% /run/shm
If you like you can remove the script from the /boot directory.
root@kali:~# rm /boot/raspi-expand-rootfs.sh
This post first appeared on Linhost.info - Notes And More Notes., please read the originial post: here