organelle-m-sd-card-resize.md

organelle-m resize SD card

• get a shell on the organelle-m, and become root

  sudo su -
  

• check what filesystem is mounted at /sdcard (e.g. /dev/mmcblk0p3)

  df -h
  

• remount writeable

  scripts/remount-rw.sh
  

• launch fdisk interactively

  fdisk /dev/mmcblk0
  

• in fdisk shell:

  • list partitions

    p
    

  • copy Start of the partition with the device we saw in df -h

  • delete partition

    d
    

  • choose partition to delete. we want the one with the device we saw in df -h

    3
    

  • new partition

    n
    

  • select partition type. we want "primary"

    p
    

  • accept default for partition number (partition 3)

  • paste the Start number we copied for first sector

  • accept default for last sector

  At this point I got a warning: Partition #3 contains a ext4 signature. and was prompted to remove it or not. I selected yes.

  • write the changes

    w
    

  I got a warning here: Re-reading the partition table failed.: Device or resource busy, and fdisk exited. Things still worked fine though, YMMV

  • quit fdisk (if that above stuff didn't happen)

    q
    

• reboot (but we're not finished)

  reboot
  

• get a shell back, become root, and remount rw again

  sudo su -
  scripts/remount-rw.sh
  

• run resize2fs on the /sdcard device (maybe check df -h again)

  resize2fs /dev/mmcblk0p3 # /sdcard from df
  

• reboot and you're all set

  reboot