Pi13 upgrade from Jessie 8 to Stretch 9 - performed 15/12/20

History

Upgraded my raspberry pi 13, which I think had a minimal install Raspbian, Debian i.e. has no desktop installed. The Pi had a PiFaceIO board installed, refer to my previous HPR episode Hpr2901

Backup process, in case something went wrong

I first moved all the unnecessary files to free up as much space as possible

Shrunk the Pi partition on the installed 128GB SD card down to 25106MB (24.52GB), (25708544K), 26,325,549,056 bytes using partition magic

I calculated that this would be 51,417,088 blocks of 512 bytes

I used dd to make an image file and grabbed some unallocated space after partition by using count=55417088, refer to the command below

sudo dd if=/dev/sdb of=/home/stuart/pi-13-img-backup.img bs=512 count=55417088

I used the following command to image files to a spare 64GB SD card

sudo dd if=/home/stuart/pi-13-img-backup.img of=/dev/sdb bs=512 status=progress

I then expanded the partition to fill the full 64GB of the card

Booted from the 64GB card to make sure that I had a backup in case anything went wrong

Removed the 64GB card which I can go back to if things don't work out

Booted from 128GB card and expanded the partition using Gparted to fill 128GB SD card

I used the 128GB SD card to perform the upgrade, remember I have 64GB card to fall back on if things go wrong

Upgrade process

Source of information below

Step 1: Check available disk space

In order to update to Raspbian Stretch, there must be enough space on the SD card. Therefore you should check the available and used disk space usage first:

$ df -h

Step 2: Check package status

You must also check that all packages are in a state that is suitable for upgrade. The following command displays all packages that have the status semi-installed or configuration failed, and those with error status:

$ sudo dpkg --audit

$ sudo dpkg --get-selections | grep hold

Step 3: Update system

Before upgrading, the Raspbian should be completely updated:

$ sudo apt-get update

$ sudo apt-get upgrade

$ sudo apt-get dist-upgrade

Step 4: Modify Release

For upgrading to the new Raspbian version, the package lists must be adapted to the "Stretch" release. To do this, only the word "jessie" has to be replaced by "stretch". In order not to overlook any position, we simply let the replacement be done by the following command:

$ sudo sed -i /deb/s/jessie/stretch/g /etc/apt/sources.list

$ sudo sed -i /deb/s/jessie/stretch/g /etc/apt/sources.list.d/*.list

Step 5: Updating package lists

The new package lists must then be updated and imported:

$ sudo apt-get update

Step 6: Update to "Stretch"

Now we are ready to start the upgrade:

$ sudo apt-get upgrade

$ sudo apt-get dist-upgrade

Step 7: Clean up installation

Old, unnecessary packages are removed after the system update with the following commands:

$ sudo apt-get autoremove

$ sudo apt-get autoclean

What was reported during upgrade

repo for get_iplayer no longer available so had to comment them out. On my Pi these were loca