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# GNU/Linux mobile
Per prima cosa, nel caso fosse presente una versione superiore o inferiore, occorre installare Android alla versione 9.0.4 sull'OnePlus 6, questo per via di `Halium` ,
che consente alle distribuzioni Linux come Ubuntu Touch di utilizzare gli stessi driver hardware e altri componenti a basso livello sviluppati originariamente per i dispositivi Android. Ciò
rende più facile per gli sviluppatori creare ROM personalizzate e altri software per questi dispositivi, senza dover preoccuparsi di problemi di compatibilità hardware.
Maggiori informazioni:
- [https://devices.ubuntu-touch.io/device/enchilada/ ](https://devices.ubuntu-touch.io/device/enchilada/ )
- [https://ubports.com/nl/members/tag/halium-4 ](https://ubports.com/nl/members/tag/halium-4 )
- [https://en.wikipedia.org/wiki/Halium ](https://en.wikipedia.org/wiki/Halium )
- [https://halium.org/ ](https://halium.org/ )
## Downgrade ad Android 9.0.4
[https://forum.xda-developers.com/t/guide-rollback-downgrade-from-oos-android-10-q-to-stable-9-pie.4000645/ ](https://forum.xda-developers.com/t/guide-rollback-downgrade-from-oos-android-10-q-to-stable-9-pie.4000645/ )
1. Scaricare il seguente pacchetto:
```bash
wget -c https://oxygenos.oneplus.net/fulldowngrade_wipe_MSM_17819_181025_2315_user_MP1_release.zip
```
2. Aprire il file zip appena scaricato;
3. Copiare il file di appena estratto nella memoria interna del dispositivo;
4. Aprire Impostazioni sul telefono;
5. Selezionare Sistema e cliccare su Aggiornamenti di sistema;
6. Fare clic sull'icona dell'ingranaggio in alto a destra;
7. Sulla finestra pop-up, cliccare su Aggiornamento locale;
8. Trovare il file copiato al passaggio 3 e selezionarlo;
9. Cliccare su Conferma;
11. L'installazione richiederà alcuni minuti.
## Sblocco del bootloader
```bash
sudo apt install android-tools-adb android-tools-fastboot
```
1. Abilitare la *Modalità sviluppatore* sul OPO6;
2. Abilitare il *debug usb* ;
3. Riavviare il dispositivo in `fastboot mode`
Dare i seguenti comandi:
```bash
fastboot devices #restituisce i device collegati
fastboot oem unlock
fastboot reboot
```
## PostmarketOS
Da [https://postmarketos.org/download/ ](https://postmarketos.org/download/ ) scaricare la versione di interesse.
Esistono i seguenti DE:
```txt
gnome-mobile
phosh
plasma-mobile
sxmo-de-sway
```
1. Riavviare OPO6 in fastboot mode e collegarlo al pc;
2. Dopo aver scaricato l'archivio precedente, decomprimere l'archivio:
```bash
unxz 20230606-2346-postmarketOS-v23.06-phosh-22.2-oneplus-enchilada.img.xz
> ll
Permissions Size User Date Modified Name
.rw-r--r-- 13M davide 8 giu 21:07 20230606-2346-postmarketOS-v23.06-phosh-22.2-oneplus-enchilada-boot.img
.rw-r--r-- 1,9G davide 8 giu 21:11 20230606-2346-postmarketOS-v23.06-phosh-22.2-oneplus-enchilada.img
```
3. Procedere con l'installazione:
```bash
fastboot erase dtbo
fastboot flash boot [the file that ends in -boot.img]
fastboot flash userdata [the other file]
fastboot reboot
```
## Mobian
1. Similmente, da [https://images.mobian.org/sdm845/ ](https://images.mobian.org/sdm845/ ) scaricare la versione di interesse;
2. Dopo aver scompattato l'archivio:
```bash
> ll
Permissions Size User Date Modified Name
.rw-r--r-- 23M davide 6 giu 12:25 mobian-sdm845-phosh-12.0.boot-enchilada.img
.rw-r--r-- 41M davide 6 giu 12:25 mobian-sdm845-phosh-12.0.boot.img
.rw-r--r-- 3,3G davide 6 giu 12:27 mobian-sdm845-phosh-12.0.rootfs.img
```
3. Installare *Mobian* coi seguenti comandi:
```bash
fastboot flash boot mobian-< processor > -phosh-YYYYMMDD.boot-< model > .img
fastboot flash system mobian-< processor > -phosh-YYYYMMDD.boot.img
fastboot -S 100M flash userdata mobian-< processor > -phosh-YYYYMMDD.rootfs.img
fastboot erase dtbo
fastboot reboot
```
Siccome OPO6 ha due partizioni A/B, per selezionarne una oppure l'altra:
```bash
fastboot --set-active=[a|b]
```
È possibile cambiare DE seguendo questa guida: [https://wiki.mobian-project.org/doku.php?id=desktopenvironments ](https://wiki.mobian-project.org/doku.php?id=desktopenvironments )
## Operare da remoto
Sull'OPO6 installare ssh:
```bash
sudo apt install openssh-server
#abilitare la porta 22 nel file /etc/ssh/sshd_config
sudo systemctl restart sshd
```
### Installazione flatpak
[https://flatpak.org/setup/Debian ](https://flatpak.org/setup/Debian )
Collegarsi via ssh e dare i seguenti comandi:
```bash
sudo -i
apt install flatpak
apt install gnome-software-plugin-flatpak
flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
```
Installare i programmi necessari da [https://flathub.org/it ](https://flathub.org/it )
### Installazione app Android (Mobian)
[https://wiki.mobian-project.org/doku.php?id=waydroid ](https://wiki.mobian-project.org/doku.php?id=waydroid )
```bash
sudo apt install wget curl ca-certificates -y
curl https://repo.waydro.id | sudo bash
sudo apt install waydroid -y
sudo waydroid init
```
Quindi, al termine del download, avviare il container:
```bash
sudo waydroid container start
waydroid session start
```
#### Troubleshooting
```bash
waydroid show-full-ui
for i in ~/.local/share/applications/waydroid*desktop; do echo 'NoDisplay=true' >> $i; done #Hide launchers
#Disable suspend inside Waydroid
waydroid prop set persist.waydroid.no_suspend true
waydroid prop set persist.waydroid.suspend false
```
#### Installare app android
```bash
waydroid app install xyz.apk
```
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#### Cartella condivisa
```bash
sudo mount --bind ~/Documents ~/.local/share/waydroid/data/media/0/Documents
sudo mount --bind ~/Downloads ~/.local/share/waydroid/data/media/0/Download
sudo mount --bind ~/Music ~/.local/share/waydroid/data/media/0/Music
sudo mount --bind ~/Pictures ~/.local/share/waydroid/data/media/0/Pictures
sudo mount --bind ~/Videos ~/.local/share/waydroid/data/media/0/Movies
```
Per configurare una cartella condivisa tra Waydroid e il SO host: [https://docs.waydro.id/faq/setting-up-a-shared-folder ](https://docs.waydro.id/faq/setting-up-a-shared-folder )
## Ubuntu Touch
Per prima cosa, è necessario reinstallare l'ultima versione di Android 9 disponibile per il OP6. È possibile scaricare la ROM dal link seguente: [https://androidfilehost.com/?w=files&flid=271877 ](https://androidfilehost.com/?w=files&flid=271877 ).
Maggiori dettagli:
- [https://forum.xda-developers.com/t/how-to-update-return-to-stock-your-oneplus-6-6t-root-no-root-stock-based-others.3870795/ ](https://forum.xda-developers.com/t/how-to-update-return-to-stock-your-oneplus-6-6t-root-no-root-stock-based-others.3870795/ )
- [https://forum.xda-developers.com/t/rom-stock-fastboot-op6-stock-fastboot-roms-for-oneplus-6.3796665/ ](https://forum.xda-developers.com/t/rom-stock-fastboot-op6-stock-fastboot-roms-for-oneplus-6.3796665/ )
Quindi decomprimere il file scaricato col comando:
```bash
unzip 9.0.9-OnePlus6Oxygen_22_OTA_034_all_1909112343_dd26-FASTBOOT.zip
cd 9\ 0\ 9-OnePlus6Oxygen\ 22\ OTA\ 034\ all\ 1909112343\ dd26-FASTBOOT/
unzip images.zip
unzip Others_flashall.zip
cd images/
```
Collegare il dispositivo al pc e dalla cartella `images/` lanciare il seguente comando:
```bash
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fastboot flashall
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```
che si occuperà di flashare tutti le seguenti immagini:
```
fastboot flash aop_a aop.img
fastboot flash aop_b aop.img
fastboot flash bluetooth_a bluetooth.img
fastboot flash bluetooth_b bluetooth.img
fastboot flash boot_a boot.img
fastboot flash boot_b boot.img
fastboot flash dsp_a dsp.img
fastboot flash dsp_b dsp.img
fastboot flash dtbo_a dtbo.img
fastboot flash dtbo_b dtbo.img
fastboot flash modem_a modem.img
fastboot flash modem_b modem.img
fastboot flash oem_stanvbk oem_stanvbk.img
fastboot flash qupfw_a qupfw.img
fastboot flash qupfw_b qupfw.img
fastboot flash storsec_a storsec.img
fastboot flash storsec_b storsec.img
fastboot flash system_a system.img
fastboot flash system_b system.img
fastboot flash vbmeta_a vbmeta.img
fastboot flash vbmeta_b vbmeta.img
fastboot flash vendor_a vendor.img
fastboot flash vendor_b vendor.img
fastboot flash LOGO_a LOGO.img
fastboot flash LOGO_b LOGO.img
fastboot reboot bootloader
```
Il telefono si riavvierà e sarà installata l'ultima versione di Android 9, per la compatibilità con Halium.
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Nel caso di errore:
> You need to set ANDROID_PRODUCT_OUT in /etc/environment.
> You may have a folder with boot.img and system.img etc. in, this is the right folder. Example:
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> export ANDROID_PRODUCT_OUT=/path/to/folder/with/images/
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> After that you can call sudo fastboot flashall -w
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- [https://techpiezo.com/linux/fastboot-error-mke2fs-failed-cannot-generate-image-for-userdata/ ](https://techpiezo.com/linux/fastboot-error-mke2fs-failed-cannot-generate-image-for-userdata/ )
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### Installazione di Ubuntu Touch
Ora basta scaricare l'installer: [https://ubuntu-touch.io/it/get-ubuntu-touch ](https://ubuntu-touch.io/it/get-ubuntu-touch )
Quindi installarlo, collegare il cellulare e seguire le istruzioni a schermo.
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## Lista app Linux mobile
- [https://mglapps.frama.io/ ](https://mglapps.frama.io/ )
- [https://linuxphoneapps.org/apps/ ](https://linuxphoneapps.org/apps/ )
- [https://wiki.mobian.org/doku.php?id=apps ](https://wiki.mobian.org/doku.php?id=apps )
## Collegamenti
- [https://nerdschalk.com/how-to-roll-back-oneplus-6-6t-to-android-9-pie/ ](https://nerdschalk.com/how-to-roll-back-oneplus-6-6t-to-android-9-pie/ )
- [https://linuxconfig.org/how-to-install-android-debug-tools-on-debian-10-buster ](https://linuxconfig.org/how-to-install-android-debug-tools-on-debian-10-buster )
- [https://wiki.postmarketos.org/wiki/OnePlus_6_(oneplus-enchilada)#Pre-built_images ](https://wiki.postmarketos.org/wiki/OnePlus_6_(oneplus-enchilada )#Pre -built_images)
- [https://wiki.mobian-project.org/doku.php?id=install-android ](https://wiki.mobian-project.org/doku.php?id=install-android )
- [https://wiki.mobian-project.org/doku.php?id=waydroid ](https://wiki.mobian-project.org/doku.php?id=waydroid )
- [https://docs.waydro.id/usage/install-and-run-android-applications ](https://docs.waydro.id/usage/install-and-run-android-applications )
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- [https://www.droidviews.com/restore-oneplus-6-to-stock-oxygen-os-rom/ ](https://www.droidviews.com/restore-oneplus-6-to-stock-oxygen-os-rom/ )
- [https://droidwin.com/restore-oneplus-6-stock-via-fastboot-commands/ ](https://droidwin.com/restore-oneplus-6-stock-via-fastboot-commands/ )