how to update 7.0.2 to 8.2.1

hi,

I'm new in this forum.

I tryed to search for update but results a lot unrelated questions, so post a new thread.

I had a very old RPi 1B to be used mainly as media player with a 8 GB SD and remote controller:

SODIAL(TM) Mouse USB senza filo con telecomando per PC: Amazon.it: Elettronica

There is Noobs to dual boot Raspbian (fully updated) and LibreELEC 7.0.2 and Kodi 16.1 that I never updated as it work.

Yesterday I tryed to update LE, following the instruction at:

downloads – LibreELEC

1) first attempt I downloaded:

LibreELEC-RPi.arm-8.2.1-noobs.tar

untarred the file and copyed the directory 'LibreELEC_RPi' to /SETTINGS/os/ directory

On reboot it show the multiboot menù selection, but selecting LibreELEC start the old 7.0.2 and do not start the update process.

2) then I tried to copy the same .tar file to /LibreELEChome/.update/

on reboot it find the new file and start to uncompress, but it say no KERNEL or SYSTEM found,

and this seems OK as this is the update file for Noobs

3) then I downloaded:

LibreELEC-RPi.arm-8.2.1.img.gz

and copy the .gz file to /LibreELEChome/.update/

on reboot it find the new file and start to uncompress, but it say:

Uncompress failed, no space left on device.

So now:

I have not much space on the 8 GB SD, so I need to know what is the minimum space needed on LibreELEC partitions to successfully update.

My current SD partition table is:

sdb      7,3G
├─sdb1   1,1G fat32    RECOVERY      /media/efa/RECOVERY
├─sdb5   132M ext4     SETTINGS      /media/efa/SETTINGS
├─sdb6    63M fat16    boot          /media/efa/boot
├─sdb7   5,0G ext4     RaspbianRoot  /media/efa/RaspbianRoot
├─sdb8   512M fat16    LIBREELEC     /media/efa/LIBREELEC
└─sdb9   512M ext4     LibreELEChome /media/efa/LibreELEChome

somewhere I read to size the partitions to 512 MB that is my case, but apparently doesn't work.

As alternative, how to force the update using Noobs?

Quote from Klojum

Solution #1: It's admirable and expected, but just let LibreELEC do the untarring and subsequent updating

expected as instructions for NOOBS at:

downloads – LibreELEC

explicitly say to "unpack it to the /os folder".

Anyway I just copied 'LibreELEC-RPi.arm-8.2.1-noobs.tar' to '/SETTINGS/os/' directory.

On reboot it show the multiboot menù selection, but selecting LibreELEC start the old 7.0.2 and do not start the update process.

How to force the update using Noobs?

for completeness here the available space on the partitions:

Partition  Size Avail Use% FS     Label         Mounted on
sdb        7,3G
+-sdb1     1,1G   92M  92% fat32  RECOVERY      /media/efa/RECOVERY
+-sdb2     6,2G            extend
+-sdb5     131M  2,2M  99% ext4   SETTINGS      /media/efa/SETTINGS
+-sdb6      63M   42M  34% fat16  boot          /media/efa/boot
+-sdb7     5,0G  494M  90% ext4   RaspbianRoot  /media/efa/RaspbianRoot
+-sdb8     512M  384M  26% fat16  LIBREELEC     /media/efa/LIBREELEC
+-sdb9     512M  427M   3% ext4   LibreELEChome /media/efa/LibreELEChome

now I figured out that '/os' directory is present on both NOOBS partitions:

/RECOVERY/os   /dev/mmcblk0p1
/SETTINGS/os   /dev/mmcblk0p5

and install instruction at:

downloads – LibreELEC

does not clarify which is to be used.

Apparently RECOVERY is for OS images to be installed, while SETTINGS contain the already installed OS.

So I tryed to copy the untarred file 'LibreELEC-RPi.arm-8.2.1-noobs.tar' directory 'LibreELEC_RPi' to '/RECOVERY/os/' directory.

On reboot it show the multiboot menù selection, but selecting LibreELEC start the old 7.0.2 and do not start the update process.

As I had a very old NOOBS version (first one after BerryBoot), I also updated it to last version (2.4), following instructions at:

Updating Raspbian on your microSD for the Raspberry Pi 2 – The Pi Hut

same results.

Seems remain only option 3) to update LibreELEC from itself.

I need to know what is the minimum space needed on LibreELEC partitions to successfully update.

thanks, yesterday I already downloaded 8.2.1 .img.gz file, so I uncompress it, it is sized 575 MB.

I enlarget a little the LibreELEC home partition:

$ lsblk
NAME     SIZE FSTYPE   LABEL         MOUNTPOINT
sdc8   512M vfat     LIBREELEC     /media/efa/LIBREELEC
sdc9   668M ext4     LibreELEChome /media/efa/LibreELEChome

$ df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sdc8       512M  142M  370M  28% /media/efa/LIBREELEC/dev/sdc9       625M   12M  567M   2% /media/efa/LibreELEChome

copy the .img file there by my PC, on next reboot it can skip the uncompress stage, and go directly to update kernel and system.

Worked, thank you for he hint.

It's a pity that is just released 8.2.2

I just discovered that NOOBS recovery Install option will wipe all the SD card OSs, and not Re-Install LibreELEC only.

So instructions at:

downloads – LibreELEC

speaking how to update LibreELEC when NOOBS and dual-boot is present, MUST mention that: will erase and reinstall Raspbian too!

PINN 2.4.4 boot loader has the ability to upgrade only LibreELEC:

STICKY: PINN - An enhanced version of NOOBS. - Raspberry Pi Forums