I have this Xiaomi Redmi Note 9S device, and I decided to install Ubuntu Touch on it.

Many install attempts later, I can't even tell when things started looking messy. Little did I know but I was then playing with fire, and it's been two weeks without succeeding.

The point is now I have apparently removed MIUI, but UT is not there. There are three booting options left:

i) an eternal loop, showing me the Redmi Powered by Android screen;
ii) Fastboot; or
iii) UBports Recovery.

And that's it. I'm not making further progress from that point.

Reproducing the problem goes like this: when Curtana boots to Fastboot, if I run the UBports installer 0.8.8-beta, it does not yike, reporting then a successful install. For a while, Curtana keeps showing the orange robot in a dark gray background, with the message:

Installing update
Installing system update

As the update procedure ends, the device loads the UBports Recovery screen, and the following message is shown at the botton:

Executing Ubuntu update script...
Error installing Ubuntu update, exit code: 256
Please go to Advanced -> View recovery logs -> /cache/ubuntuupdater.log

I go to View recovery logs but it's empty.

What about the logs left in ~/.cache/ubports/ubports-installer.log?

The 94‑line output follows:

{"level":"info","message":"Welcome to the UBports Installer version 0.8.8-beta!"}
{"level":"command","message":"exec: {\"cmd\":[\"heimdall\",\"detect\"],\"error\":{\"message\":\"Command failed: heimdall detect\\nERROR: Failed to detect compatible download-mode device.\",\"code\":1},\"stderr\":\"ERROR: Failed to detect compatible download-mode device.\"}"}
{"level":"command","message":"exec: {\"cmd\":[\"adb\",\"-P\",5037,\"kill-server\"],\"stderr\":\"cannot connect to daemon at tcp:5037: Connection refused\"}"}
{"level":"command","message":"exec: {\"cmd\":[\"adb\",\"-P\",5037,\"start-server\"],\"stderr\":\"* daemon not running; starting now at tcp:5037\\n* daemon started successfully\"}"}
{"level":"command","message":"exec: {\"cmd\":[\"heimdall\",\"detect\"],\"error\":{\"message\":\"Command failed: heimdall detect\\nERROR: Failed to detect compatible download-mode device.\",\"code\":1},\"stderr\":\"ERROR: Failed to detect compatible download-mode device.\"}"}
{"level":"command","message":"exec: {\"cmd\":[\"fastboot\",\"devices\"],\"stdout\":\"1ee98c46\\tfastboot\"}"}
{"level":"command","message":"exec: {\"cmd\":[\"fastboot\",\"devices\"],\"stdout\":\"1ee98c46\\tfastboot\"}"}
{"level":"command","message":"exec: {\"cmd\":[\"fastboot\",\"getvar\",\"product\"],\"stderr\":\"product: curtana\\nFinished. Total time: 0.000s\"}"}
{"level":"command","message":"exec: {\"cmd\":[\"adb\",\"-P\",5037,\"wait-for-any-any\"],\"error\":{\"message\":\"Command failed: adb -P 5037 wait-for-any-any\",\"signal\":\"SIGTERM\",\"killed\":true}}"}
{"level":"info","message":"device detected: miatoll"}
{"level":"info","message":"Installing Ubuntu Touch on your Xiaomi Redmi Note 9 Pro/Pro Max/9S - Poco M2 Pro (miatoll)"}
{"level":"info","message":"configuring..."}
{"level":"info","message":"settings: {\"channel\":\"16.04/arm64/android9/stable\",\"wipe\":true,\"bootstrap\":true}"}
{"level":"verbose","message":"running step {\"actions\":[{\"core:download\":{\"group\":\"firmware\",\"files\":[{\"url\":\"https://github.com/ubuntu-touch-miatoll/ubuntu-touch-miatoll/releases/download/stable-installer-fix/recovery.img\",\"name\":\"recovery.img\",\"checksum\":{\"sum\":\"461259015c4bdd0e8fb36c7412454f9c8c9e8ae6b1413e79598bd1c6ec0095ea\",\"algorithm\":\"sha256\"}},{\"url\":\"https://github.com/ubuntu-touch-miatoll/ubuntu-touch-miatoll/releases/download/stable-installer-fix/dtbo.img\",\"name\":\"dtbo.img\",\"checksum\":{\"sum\":\"d408a9ecd7d2c6098cc06ec7dab03f69a532741f3626e6188d57b7557f421eb8\",\"algorithm\":\"sha256\"}}]}}],\"condition\":{\"var\":\"bootstrap\",\"value\":true}}"}
{"level":"verbose","message":"running core action download"}
{"level":"debug","message":"checking previously downloaded firmware files"}
{"level":"verbose","message":"running step {\"actions\":[{\"adb:reboot\":{\"to_state\":\"bootloader\"}}],\"fallback\":[{\"core:user_action\":{\"action\":\"bootloader\"}}],\"condition\":{\"var\":\"bootstrap\",\"value\":true}}"}
{"level":"verbose","message":"running adb action reboot"}
{"level":"command","message":"exec: {\"cmd\":[\"adb\",\"-P\",5037,\"reboot\",\"bootloader\"],\"error\":{\"message\":\"Command failed: adb -P 5037 reboot bootloader\\nerror: no devices/emulators found\",\"code\":1},\"stderr\":\"error: no devices/emulators found\"}"}
{"level":"debug","message":"attempting to handle Error: no device"}
{"level":"verbose","message":"running core action user_action"}
{"level":"verbose","message":"running step {\"actions\":[{\"fastboot:wait\":null}]}"}
{"level":"verbose","message":"running fastboot action wait"}
{"level":"command","message":"exec: {\"cmd\":[\"fastboot\",\"devices\"],\"stdout\":\"1ee98c46\\tfastboot\"}"}
{"level":"verbose","message":"running step {\"actions\":[{\"fastboot:format\":{\"partition\":\"cache\"}}],\"condition\":{\"var\":\"bootstrap\",\"value\":true}}"}
{"level":"verbose","message":"running fastboot action format"}
{"level":"command","message":"exec: {\"cmd\":[\"fastboot\",\"format\",\"cache\"],\"error\":{\"message\":\"Command failed: fastboot format cache\\nFAILED (remote: 'Fastboot HAL not found')\\nfastboot: error: Command failed\",\"code\":1},\"stderr\":\"FAILED (remote: 'Fastboot HAL not found')\\nfastboot: error: Command failed\"}"}
{"level":"debug","message":"attempting to handle Error: formatting failed: Error: {\"error\":{\"code\":1,\"cmd\":\"fastboot format cache\"},\"stderr\":\"FAILED (remote: 'Fastboot HAL not found')\\nfastboot: error: Command failed\"}"}
{"level":"error","message":"Error: fastboot:format: Error: formatting failed: Error: {\"error\":{\"code\":1,\"cmd\":\"fastboot format cache\"},\"stderr\":\"FAILED (remote: 'Fastboot HAL not found')\\nfastboot: error: Command failed\"}\nstack trace: Error: formatting failed: Error: {\"error\":{\"code\":1,\"cmd\":\"fastboot format cache\"},\"stderr\":\"FAILED (remote: 'Fastboot HAL not found')\\nfastboot: error: Command failed\"}\n    at /opt/ubports-installer/resources/app.asar.unpacked/node_modules/promise-android-tools/lib/module.cjs:1200:15\n    at /opt/ubports-installer/resources/app.asar.unpacked/node_modules/cancelable-promise/dist/CancelablePromise.js:27:18\n    at runMicrotasks (<anonymous>)\n    at processTicksAndRejections (internal/process/task_queues.js:97:5)"}
{"level":"warn","message":"error ignored"}
{"level":"verbose","message":"running step {\"actions\":[{\"fastboot:format\":{\"partition\":\"userdata\",\"type\":\"ext4\"}}],\"condition\":{\"var\":\"wipe\",\"value\":true}}"}
{"level":"verbose","message":"running fastboot action format"}
{"level":"command","message":"exec: {\"cmd\":[\"fastboot\",\"format:ext4\",\"userdata\"],\"error\":{\"message\":\"Command failed: fastboot format:ext4 userdata\\nFAILED (remote: 'Fastboot HAL not found')\\nfastboot: error: Command failed\",\"code\":1},\"stderr\":\"FAILED (remote: 'Fastboot HAL not found')\\nfastboot: error: Command failed\"}"}
{"level":"debug","message":"attempting to handle Error: formatting failed: Error: {\"error\":{\"code\":1,\"cmd\":\"fastboot format:ext4 userdata\"},\"stderr\":\"FAILED (remote: 'Fastboot HAL not found')\\nfastboot: error: Command failed\"}"}
{"level":"error","message":"Error: fastboot:format: Error: formatting failed: Error: {\"error\":{\"code\":1,\"cmd\":\"fastboot format:ext4 userdata\"},\"stderr\":\"FAILED (remote: 'Fastboot HAL not found')\\nfastboot: error: Command failed\"}\nstack trace: Error: formatting failed: Error: {\"error\":{\"code\":1,\"cmd\":\"fastboot format:ext4 userdata\"},\"stderr\":\"FAILED (remote: 'Fastboot HAL not found')\\nfastboot: error: Command failed\"}\n    at /opt/ubports-installer/resources/app.asar.unpacked/node_modules/promise-android-tools/lib/module.cjs:1200:15\n    at /opt/ubports-installer/resources/app.asar.unpacked/node_modules/cancelable-promise/dist/CancelablePromise.js:27:18\n    at runMicrotasks (<anonymous>)\n    at processTicksAndRejections (internal/process/task_queues.js:97:5)"}
{"level":"warn","message":"error ignored"}
{"level":"verbose","message":"running step {\"actions\":[{\"fastboot:flash\":{\"partitions\":[{\"partition\":\"recovery\",\"file\":\"recovery.img\",\"group\":\"firmware\"},{\"partition\":\"dtbo\",\"file\":\"dtbo.img\",\"group\":\"firmware\"}]}}],\"condition\":{\"var\":\"bootstrap\",\"value\":true}}"}
{"level":"verbose","message":"running fastboot action flash"}
{"level":"command","message":"exec: {\"cmd\":[\"fastboot\",\"devices\"],\"stdout\":\"1ee98c46\\tfastboot\"}"}
{"level":"command","message":"exec: {\"cmd\":[\"fastboot\",\"devices\"],\"stdout\":\"1ee98c46\\tfastboot\"}"}
{"level":"command","message":"spawn:start: {\"cmd\":[\"fastboot\",\"flash\",\"recovery\",\"/home/mbarbado/.cache/ubports/miatoll/firmware/recovery.img\"]}"}
{"level":"command","message":"spawn:exit: {\"cmd\":[\"fastboot\",\"flash\",\"recovery\",\"/home/mbarbado/.cache/ubports/miatoll/firmware/recovery.img\"]}"}
{"level":"command","message":"spawn:start: {\"cmd\":[\"fastboot\",\"flash\",\"dtbo\",\"/home/mbarbado/.cache/ubports/miatoll/firmware/dtbo.img\"]}"}
{"level":"command","message":"spawn:exit: {\"cmd\":[\"fastboot\",\"flash\",\"dtbo\",\"/home/mbarbado/.cache/ubports/miatoll/firmware/dtbo.img\"]}"}
{"level":"verbose","message":"running step {\"actions\":[{\"fastboot:reboot_bootloader\":null}],\"fallback\":[{\"core:user_action\":{\"action\":\"recovery\"}}],\"condition\":{\"var\":\"bootstrap\",\"value\":true}}"}
{"level":"verbose","message":"running fastboot action reboot_bootloader"}
{"level":"command","message":"exec: {\"cmd\":[\"fastboot\",\"reboot-bootloader\"],\"stderr\":\"Rebooting into bootloader                          OKAY [  0.000s]\\nFinished. Total time: 0.050s\"}"}
{"level":"verbose","message":"running step {\"actions\":[{\"fastboot:boot\":{\"file\":\"recovery.img\",\"group\":\"firmware\"}}],\"fallback\":[{\"core:user_action\":{\"action\":\"recovery\"}}]}"}
{"level":"verbose","message":"running fastboot action boot"}
{"level":"command","message":"exec: {\"cmd\":[\"fastboot\",\"boot\",\"/home/mbarbado/.cache/ubports/miatoll/firmware/recovery.img\"],\"stderr\":\"< waiting for any device >\\nSending 'boot.img' (131072 KB)                     OKAY [  3.288s]\\nBooting                                            OKAY [  5.098s]\\nFinished. Total time: 8.486s\"}"}
{"level":"verbose","message":"running step {\"actions\":[{\"systemimage:install\":null}]}"}
{"level":"verbose","message":"running systemimage action install"}
{"level":"verbose","message":"running step {\"actions\":[{\"core:download\":{\"group\":\"Ubuntu Touch\",\"files\":[{\"url\":\"https://system-image.ubports.com//pool/ubports-227e5edffd603396044dea1dee123edb4b695539a26712b4815a33561fc6ea43.tar.xz\",\"checksum\":{\"sum\":\"4b309fd284a988e63eb150ce032d731c0371dec5520beb999bc0af7b2dd0df20\",\"algorithm\":\"sha256\"}},{\"url\":\"https://system-image.ubports.com//pool/ubports-227e5edffd603396044dea1dee123edb4b695539a26712b4815a33561fc6ea43.tar.xz.asc\"},{\"url\":\"https://system-image.ubports.com//pool/device-6afac5871a5c3b0c831b0371c978f7350251da0bc580e108b72f660c8dae992a.tar.xz\",\"checksum\":{\"sum\":\"709348eaadbe66cddb775fcddf860a697623cb7a9eb3c66040f72ef3fe4137a0\",\"algorithm\":\"sha256\"}},{\"url\":\"https://system-image.ubports.com//pool/device-6afac5871a5c3b0c831b0371c978f7350251da0bc580e108b72f660c8dae992a.tar.xz.asc\"},{\"url\":\"https://system-image.ubports.com//pool/boot-c0fa5e5e5b239a61e2c4c336234c4144bcf49bbb4b6bb819b8c7729cce7895a0.tar.xz\",\"checksum\":{\"sum\":\"7089aeb9907ad0d94f91b93a529a18942923b96fd79b002f78a08181fda4a6e0\",\"algorithm\":\"sha256\"}},{\"url\":\"https://system-image.ubports.com//pool/boot-c0fa5e5e5b239a61e2c4c336234c4144bcf49bbb4b6bb819b8c7729cce7895a0.tar.xz.asc\"},{\"url\":\"https://system-image.ubports.com//pool/keyring-28992f008be20d562ea06745f563d3abe00b08da1b16e5b92e448e2d4ba21e9f.tar.xz\",\"checksum\":{\"sum\":\"aa88fbf7d1aa6d9ab95a2a41cdf50b5b8da705a887cc34cde101c821ae7eb3d8\",\"algorithm\":\"sha256\"}},{\"url\":\"https://system-image.ubports.com//pool/keyring-28992f008be20d562ea06745f563d3abe00b08da1b16e5b92e448e2d4ba21e9f.tar.xz.asc\"},{\"url\":\"https://system-image.ubports.com//16.04/arm64/android9/stable/miatoll/version-3.tar.xz\",\"checksum\":{\"sum\":\"1fec0bdae3c78128a37f2a9fdcba9425d248c7859adff3bd6a999eaf453cb794\",\"algorithm\":\"sha256\"}},{\"url\":\"https://system-image.ubports.com//16.04/arm64/android9/stable/miatoll/version-3.tar.xz.asc\"},{\"url\":\"https://system-image.ubports.com/gpg/image-signing.tar.xz\"},{\"url\":\"https://system-image.ubports.com/gpg/image-signing.tar.xz.asc\"},{\"url\":\"https://system-image.ubports.com/gpg/image-master.tar.xz\"},{\"url\":\"https://system-image.ubports.com/gpg/image-master.tar.xz.asc\"}]}},{\"core:write\":{\"content\":\"format system\\nload_keyring image-master.tar.xz image-master.tar.xz.asc\\nload_keyring image-signing.tar.xz image-signing.tar.xz.asc\\nmount system\\nformat data\\nupdate ubports-227e5edffd603396044dea1dee123edb4b695539a26712b4815a33561fc6ea43.tar.xz ubports-227e5edffd603396044dea1dee123edb4b695539a26712b4815a33561fc6ea43.tar.xz.asc\\nupdate device-6afac5871a5c3b0c831b0371c978f7350251da0bc580e108b72f660c8dae992a.tar.xz device-6afac5871a5c3b0c831b0371c978f7350251da0bc580e108b72f660c8dae992a.tar.xz.asc\\nupdate boot-c0fa5e5e5b239a61e2c4c336234c4144bcf49bbb4b6bb819b8c7729cce7895a0.tar.xz boot-c0fa5e5e5b239a61e2c4c336234c4144bcf49bbb4b6bb819b8c7729cce7895a0.tar.xz.asc\\nupdate keyring-28992f008be20d562ea06745f563d3abe00b08da1b16e5b92e448e2d4ba21e9f.tar.xz keyring-28992f008be20d562ea06745f563d3abe00b08da1b16e5b92e448e2d4ba21e9f.tar.xz.asc\\nupdate version-3.tar.xz version-3.tar.xz.asc\\nunmount system\",\"group\":\"Ubuntu Touch\",\"file\":\"ubuntu_command\"}},{\"adb:wait\":null},{\"adb:preparesystemimage\":null},{\"adb:push\":{\"group\":\"Ubuntu Touch\",\"files\":[\"ubports-227e5edffd603396044dea1dee123edb4b695539a26712b4815a33561fc6ea43.tar.xz\",\"ubports-227e5edffd603396044dea1dee123edb4b695539a26712b4815a33561fc6ea43.tar.xz.asc\",\"device-6afac5871a5c3b0c831b0371c978f7350251da0bc580e108b72f660c8dae992a.tar.xz\",\"device-6afac5871a5c3b0c831b0371c978f7350251da0bc580e108b72f660c8dae992a.tar.xz.asc\",\"boot-c0fa5e5e5b239a61e2c4c336234c4144bcf49bbb4b6bb819b8c7729cce7895a0.tar.xz\",\"boot-c0fa5e5e5b239a61e2c4c336234c4144bcf49bbb4b6bb819b8c7729cce7895a0.tar.xz.asc\",\"keyring-28992f008be20d562ea06745f563d3abe00b08da1b16e5b92e448e2d4ba21e9f.tar.xz\",\"keyring-28992f008be20d562ea06745f563d3abe00b08da1b16e5b92e448e2d4ba21e9f.tar.xz.asc\",\"version-3.tar.xz\",\"version-3.
tar.xz.asc\",\"image-signing.tar.xz\",\"image-signing.tar.xz.asc\",\"image-master.tar.xz\",\"image-master.tar.xz.asc\",\"ubuntu_command\"],\"dest\":\"/cache/recovery/\"}}]}"}
{"level":"verbose","message":"running core action download"}
{"level":"debug","message":"checking previously downloaded Ubuntu Touch files"}
{"level":"info","message":"Downloading 9 files"}
{"level":"debug","message":"downloading Ubuntu Touch files"}
{"level":"info","message":"Downloaded file 1 of 9"}
{"level":"info","message":"Downloaded file 2 of 9"}
{"level":"info","message":"Downloaded file 3 of 9"}
{"level":"info","message":"Downloaded file 4 of 9"}
{"level":"info","message":"Downloaded file 5 of 9"}
{"level":"info","message":"Downloaded file 6 of 9"}
{"level":"info","message":"Downloaded file 7 of 9"}
{"level":"info","message":"Downloaded file 8 of 9"}
{"level":"info","message":"Downloaded file 9 of 9"}
{"level":"verbose","message":"running core action write"}
{"level":"verbose","message":"running adb action wait"}
{"level":"command","message":"exec: {\"cmd\":[\"adb\",\"-P\",5037,\"wait-for-any-any\"]}"}
{"level":"command","message":"exec: {\"cmd\":[\"adb\",\"-P\",5037,\"get-state\"],\"stdout\":\"recovery\"}"}
{"level":"verbose","message":"running adb action preparesystemimage"}
{"level":"command","message":"exec: {\"cmd\":[\"adb\",\"-P\",5037,\"shell\",\"mount -a\"],\"error\":{\"message\":\"Command failed: adb -P 5037 shell mount -a\\nmount: '/dev/block/dm-1'->'/product': Invalid argument\\nmount: '/dev/block/dm-2'->'/vendor': Invalid argument\\nmount: '/dev/block/bootdevice/by-name/boot'->'/boot': No such file or directory\\nmount: '/dev/block/bootdevice/by-name/modem'->'/vendor/firmware_mnt': No such file or directory\\nmount: '/dev/block/bootdevice/by-name/dsp'->'/vendor/dsp': No such file or directory\\nmount: '/dev/block/bootdevice/by-name/persist'->'/mnt/vendor/persist': No such file or directory\\nmount: '/dev/block/bootdevice/by-name/bluetooth'->'/vendor/bt_firmware': No such file or directory\\nmount: '/dev/block/bootdevice/by-name/misc'->'/misc': No such file or directory\",\"code\":1},\"stderr\":\"mount: '/dev/block/dm-1'->'/product': Invalid argument\\nmount: '/dev/block/dm-2'->'/vendor': Invalid argument\\nmount: '/dev/block/bootdevice/by-name/boot'->'/boot': No such file or directory\\nmount: '/dev/block/bootdevice/by-name/modem'->'/vendor/firmware_mnt': No such file or directory\\nmount: '/dev/block/bootdevice/by-name/dsp'->'/vendor/dsp': No such file or directory\\nmount: '/dev/block/bootdevice/by-name/persist'->'/mnt/vendor/persist': No such file or directory\\nmount: '/dev/block/bootdevice/by-name/bluetooth'->'/vendor/bt_firmware': No such file or directory\\nmount: '/dev/block/bootdevice/by-name/misc'->'/misc': No such file or directory\"}"}
{"level":"command","message":"exec: {\"cmd\":[\"adb\",\"-P\",5037,\"shell\",\"cat /etc/recovery.fstab\"],\"stdout\":\"# Copyright (c) 2018-2019, The Linux Foundation. All rights reserved.\\n#\\n# Redistribution and use in source and binary forms, with or without\\n# modification, are permitted provided that the following conditions are\\n# met:\\n#     * Redistributions of source code must retain the above copyright\\n#       notice, this list of conditions and the following disclaimer.\\n#     * Redistributions in binary form must reproduce the above\\n#       copyright notice, this list of conditions and the following\\n#       disclaimer in the documentation and/or other materials provided\\n#       with the distribution.\\n#     * Neither the name of The Linux Foundation nor the names of its\\n#       contributors may be used to endorse or promote products derived\\n#       from this software without specific prior written permission.\\n#\\n# THIS SOFTWARE IS PROVIDED \\\"AS IS\\\" AND ANY EXPRESS OR IMPLIED\\n# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF\\n# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT\\n# ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS\\n# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\\n# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\\n# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR\\n# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\\n# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE\\n# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN\\n# IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\\n\\n# Android fstab file.\\n# The filesystem that contains the filesystem checker binary (typically /system) cannot\\n# specify MF_CHECK, and must come before any filesystems that do specify MF_CHECK\\n\\n#TODO: Add 'check' as fs_mgr_flags with data partition.\\n# Currently we dont have e2fsck compiled. So fs check would failed.\\n\\n#<src>                                                 <mnt_point>               <type>  <mnt_flags and options>                            <fs_mgr_flags>\\nsystem                                                  /system_root             ext4    ro,barrier=1,discard                                 wait,logical,first_stage_mount,avb=vbmeta_system,avb_keys=/avb/q-gsi.avbpubkey:/avb/r-gsi.avbpubkey:/avb/s-gsi.avbpubkey\\nproduct                                                 /product                 ext4    ro,barrier=1,discard                                 wait,logical,first_stage_mount,avb=vbmeta_system\\nvendor                                                  /vendor                  ext4    ro,barrier=1,discard                                 wait,logical,first_stage_mount,avb\\n/dev/block/bootdevice/by-name/cache                     /cache                   ext4    nosuid,noatime,nodev,barrier=1                       wait\\n/dev/block/bootdevice/by-name/boot                      /boot                    emmc    defaults                                             defaults\\n/dev/block/by-name/metadata                             /metadata                ext4    noatime,nosuid,nodev,discard                         wait,formattable,wrappedkey,first_stage_mount\\n# Add fs_mgr flag - sysfs_path=/sys/devices/platform/soc/xxxx.[ufshc|sdhci] to userdata entry, based on UFS|eMMC device.\\n/dev/block/bootdevice/by-name/userdata                  /data                    ext4    noatime,nosuid,nodev,nodiscard,reserve_root=32768,resgid=1065,fsync_mode=nobarrier     latemount,wait,check,formattable,fileencryption=ice,wrappedkey,quota,reservedsize=128M,checkpoint=fs\\n/devices/platform/soc/8804000.sdhci/mmc_host*           /storage/sdcard1         vfat    nosuid,nodev                                         wait,voldmanaged=sdcard1:auto,encryptable=footer\\n/devices/platform/soc/1da4000.ufshc_card/host*          /storage/sdcard1         vfat    nosuid,nodev                                      
   wait,voldmanaged=sdcard1:auto,encryptable=footer\\n/dev/block/bootdevice/by-name/modem                     /vendor/firmware_mnt     vfat    ro,shortname=lower,uid=1000,gid=1000,dmask=227,fmask=337,context=u:object_r:firmware_file:s0 wait\\n/dev/block/bootdevice/by-name/dsp                       /vendor/dsp              ext4    ro,nosuid,nodev,barrier=1                            wait\\n/dev/block/bootdevice/by-name/persist                   /mnt/vendor/persist      ext4    noatime,nosuid,nodev,barrier=1                       wait\\n/dev/block/bootdevice/by-name/bluetooth                 /vendor/bt_firmware      vfat    ro,shortname=lower,uid=1002,gid=3002,dmask=227,fmask=337,context=u:object_r:bt_firmware_file:s0 wait\\n/devices/platform/soc/a600000.ssusb/a600000.dwc3/xhci-hcd.0.auto*     /storage/usbotg    vfat    nosuid,nodev         wait,voldmanaged=usbotg:auto\\n# Need to have this entry in here even though the mount point itself is no longer needed.\\n# The update_engine code looks for this entry in order to determine the boot device address\\n# and fails if it does not find it.\\n/dev/block/bootdevice/by-name/misc                      /misc              emmc    defaults                                             defaults\\n/dev/block/zram0                                        none               swap    defaults                                             zramsize=1073741824\"}"}
{"level":"command","message":"exec: {\"cmd\":[\"adb\",\"-P\",5037,\"shell\",\"umount /cache\"]}"}
{"level":"command","message":"exec: {\"cmd\":[\"adb\",\"-P\",5037,\"shell\",\"make_ext4fs /dev/block/bootdevice/by-name/cache\"],\"error\":{\"message\":\"Command failed: adb -P 5037 shell make_ext4fs /dev/block/bootdevice/by-name/cache\\n/system/bin/sh: make_ext4fs: inaccessible or not found\",\"code\":127},\"stderr\":\"/system/bin/sh: make_ext4fs: inaccessible or not found\"}"}
{"level":"command","message":"exec: {\"cmd\":[\"adb\",\"-P\",5037,\"shell\",\"rm -rf /cache/*\"]}"}
{"level":"command","message":"exec: {\"cmd\":[\"adb\",\"-P\",5037,\"shell\",\"mkdir -p /cache/recovery\"]}"}
{"level":"debug","message":"adb created /cache/recovery directory"}
{"level":"verbose","message":"running adb action push"}
{"level":"command","message":"spawn:start: {\"cmd\":[\"adb\",\"-P\",5037,\"push\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/ubports-227e5edffd603396044dea1dee123edb4b695539a26712b4815a33561fc6ea43.tar.xz\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/ubports-227e5edffd603396044dea1dee123edb4b695539a26712b4815a33561fc6ea43.tar.xz.asc\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/device-6afac5871a5c3b0c831b0371c978f7350251da0bc580e108b72f660c8dae992a.tar.xz\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/device-6afac5871a5c3b0c831b0371c978f7350251da0bc580e108b72f660c8dae992a.tar.xz.asc\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/boot-c0fa5e5e5b239a61e2c4c336234c4144bcf49bbb4b6bb819b8c7729cce7895a0.tar.xz\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/boot-c0fa5e5e5b239a61e2c4c336234c4144bcf49bbb4b6bb819b8c7729cce7895a0.tar.xz.asc\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/keyring-28992f008be20d562ea06745f563d3abe00b08da1b16e5b92e448e2d4ba21e9f.tar.xz\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/keyring-28992f008be20d562ea06745f563d3abe00b08da1b16e5b92e448e2d4ba21e9f.tar.xz.asc\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/version-3.tar.xz\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/version-3.tar.xz.asc\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/image-signing.tar.xz\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/image-signing.tar.xz.asc\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/image-master.tar.xz\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/image-master.tar.xz.asc\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/ubuntu_command\",\"/cache/recovery/\"]}"}
{"level":"command","message":"exec: {\"cmd\":[\"adb\",\"-P\",5037,\"shell\",\"mount\"],\"stdout\":\"rootfs on / type rootfs (rw,size=2213924k,nr_inodes=553481)\\ntmpfs on /dev type tmpfs (rw,nosuid,relatime,size=2849256k,nr_inodes=712314,mode=755)\\ndevpts on /dev/pts type devpts (rw,relatime,mode=600,ptmxmode=000)\\nproc on /proc type proc (rw,relatime,gid=3009,hidepid=2)\\nsysfs on /sys type sysfs (rw,relatime)\\ntmpfs on /mnt type tmpfs (rw,nosuid,nodev,noexec,relatime,size=2849256k,nr_inodes=712314,mode=755,gid=1000)\\ntmpfs on /apex type tmpfs (rw,nosuid,nodev,noexec,relatime,size=2849256k,nr_inodes=712314,mode=755)\\nnone on /acct type cgroup (rw,nosuid,nodev,noexec,relatime,cpuacct)\\ntmpfs on /tmp type tmpfs (rw,relatime,size=2849256k,nr_inodes=712314)\\ntmpfs on /storage type tmpfs (rw,relatime,size=2849256k,nr_inodes=712314,mode=050,gid=1028)\\npstore on /sys/fs/pstore type pstore (rw,relatime)\\nnone on /config type configfs (rw,relatime)\\nadb on /dev/usb-ffs/adb type functionfs (rw,relatime)\\nfastboot on /dev/usb-ffs/fastboot type functionfs (rw,relatime)\\n/dev/block/sda18 on /cache type ext4 (rw,relatime,resgid=1065,errors=remount-ro,stripe=2,data=ordered)\\n/dev/block/dm-0 on /system_root type ext4 (rw,relatime,discard,data=ordered)\\n/dev/block/sda12 on /metadata type ext4 (rw,relatime,discard,data=ordered)\\n/dev/block/sda18 on /data type ext4 (rw,relatime,resgid=1065,errors=remount-ro,stripe=2,data=ordered)\"}"}
{"level":"debug","message":"ext4 data partition ok"}
{"level":"command","message":"spawn:exit: {\"cmd\":[\"adb\",\"-P\",5037,\"push\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/ubports-227e5edffd603396044dea1dee123edb4b695539a26712b4815a33561fc6ea43.tar.xz\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/ubports-227e5edffd603396044dea1dee123edb4b695539a26712b4815a33561fc6ea43.tar.xz.asc\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/device-6afac5871a5c3b0c831b0371c978f7350251da0bc580e108b72f660c8dae992a.tar.xz\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/device-6afac5871a5c3b0c831b0371c978f7350251da0bc580e108b72f660c8dae992a.tar.xz.asc\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/boot-c0fa5e5e5b239a61e2c4c336234c4144bcf49bbb4b6bb819b8c7729cce7895a0.tar.xz\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/boot-c0fa5e5e5b239a61e2c4c336234c4144bcf49bbb4b6bb819b8c7729cce7895a0.tar.xz.asc\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/keyring-28992f008be20d562ea06745f563d3abe00b08da1b16e5b92e448e2d4ba21e9f.tar.xz\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/keyring-28992f008be20d562ea06745f563d3abe00b08da1b16e5b92e448e2d4ba21e9f.tar.xz.asc\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/version-3.tar.xz\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/version-3.tar.xz.asc\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/image-signing.tar.xz\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/image-signing.tar.xz.asc\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/image-master.tar.xz\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/image-master.tar.xz.asc\",\"/home/mbarbado/.cache/ubports/miatoll/Ubuntu Touch/ubuntu_command\",\"/cache/recovery/\"]}"}
{"level":"verbose","message":"running step {\"actions\":[{\"adb:reboot\":{\"to_state\":\"recovery\"}}],\"fallback\":[{\"core:user_action\":{\"action\":\"recovery\"}}]}"}
{"level":"verbose","message":"running adb action reboot"}
{"level":"command","message":"exec: {\"cmd\":[\"adb\",\"-P\",5037,\"reboot\",\"recovery\"]}"}
{"level":"verbose","message":"running step {\"actions\":[{\"core:end\":null}]}"}
{"level":"verbose","message":"running core action end"}
{"level":"info","message":"All done! Your device will now reboot and complete the installation. Enjoy exploring Ubuntu Touch!"}
{"level":"info","message":"Good bye!"}
{"level":"command","message":"exec: {\"cmd\":[\"adb\",\"-P\",5037,\"kill-server\"]}"}

If I reboot Curtana, the same Redmi screen loop is there again, so I'm not sure how to proceed now.

Help?