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1. I installed this image on my R-Pi 4: ubuntu-20.04-preinstalled-
server-arm64+raspi.img. It booted with no issues including SSH
connection.
2. I then edited the boot/firmware/usercfg.txt and added dtoverlay=uart4
to allow access to an alternate UART. This has been working fine for me
with 19.10.1 on the same hardware setup.
3. The RPi would not boot and nothing was sent out the serial console.
4. I placed the SD card back in my PC and removed the added line. Boot
of the 20.04 image worked again.
Release info:
ubuntu@ubuntu:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04 LTS
Release: 20.04
Codename: focal
Output of serial console with Stock 20.04 image(only password changed at
initial boot)
MMC: emmc2@7e340000: 0, mmcnr@7e300000: 1
Loading Environment from FAT... *** Warning - bad CRC, using default environment
In: serial
Out: serial
Err: serial
Net: No ethernet found.
starting USB...
No working controllers found
## Info: input data size = 6 = 0x6
Hit any key to stop autoboot: 0
switch to partitions #0, OK
mmc0 is current device
Scanning mmc 0:1...
Found U-Boot script /boot.scr
2569 bytes read in 17 ms (147.5 KiB/s)
## Executing script at 02400000
8377273 bytes read in 621 ms (12.9 MiB/s)
Total of 1 halfword(s) were the same
Decompressing kernel...
Uncompressed size: 25905664 = 0x18B4A00
29417535 bytes read in 2117 ms (13.3 MiB/s)
Booting Ubuntu (with booti) from mmc 0:...
## Flattened Device Tree blob at 02600000
Booting using the fdt blob at 0x2600000
Using Device Tree in place at 0000000002600000, end 000000000260e415
Starting kernel ...
[ 0.940739] bcm2708_fb soc:fb: Unable to determine number of FB's. Assuming 1
[ 0.941825] raspberrypi-firmware soc:firmware: Request 0x00048003 returned
status 0x80000001
[ 0.941850] bcm2708_fb soc:fb: Failed to allocate GPU framebuffer (-22)
[ 0.941898] bcm2708_fb soc:fb: probe failed, err -22
[ 1.343885] spi-bcm2835 fe204000.spi: could not get clk: -517
ln: /tmp/mountroot-fail-hooks.d//scripts/init-premount/lvm2: No such file or
directory
ext4
Thu Jan 1 00:00:05 UTC 1970
date: invalid date ' Wed Apr 1 17:23:43 2020'
-.mount
dev-mqueue.mount
sys-kernel-debug.mount
sys-kernel-tracing.mount
kmod-static-nodes.service
systemd-modules-load.service
systemd-remount-fs.service
ufw.service
sys-fs-fuse-connections.mount
sys-kernel-config.mount
systemd-random-seed.service
systemd-sysusers.service
systemd-sysctl.service
systemd-tmpfiles-setup-dev.service
keyboard-setup.service
lvm2-monitor.service
systemd-udevd.service
systemd-journald.service
systemd-udev-trigger.service
systemd-journal-flush.service
[ 7.989412] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio
for chip BCM4345/6
[ 8.249348] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio
for chip BCM4345/6
[ 8.269839] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6 wl0: Feb 27
2018 03:15:32 version 7.45.154 (r684107 CY) FWID 01-4fbe0b04
systemd-rfkill.service
systemd-udev-settle.service
multipathd.service
systemd-fsckd.service
snap-core18-1708.mount
snap-lxd-14808.mount
snap-snapd-7267.mount
systemd-fsck@dev-disk-by\x2dlabel-system\x2dboot.service
boot-firmware.mount
console-setup.service
finalrd.service
[ OK ] Finished Tell Plymouth To Write Out Runtime Data.
[ OK ] Finished Create Volatile Files and Directories.
systemd-tmpfiles-setup.service
Starting Network Time Synchronization...
Starting Update UTMP about System Boot/Shutdown...
[ OK ] Finished Update UTMP about System Boot/Shutdown.
systemd-update-utmp.service
apparmor.service
[ OK ] Finished Load AppArmor profiles.
Starting Load AppArmor pro…managed internally by snapd...
[ OK ] Finished Load AppArmor pro…s managed internally by snapd.
snapd.apparmor.service
[ OK ] Started Network Time Synchronization.
systemd-timesyncd.service
[ OK ] Reached target System Time Set.
[ OK ] Reached target System Time Synchronized.
[ 11.747964] cloud-init[1151]: Cloud-init v. 20.1-10-g71af48df-0ubuntu5
running 'init-local' at Sun, 26 Apr 2020 21:59:25 +0000. Up 11.30 seconds.
[ OK ] Finished Initial cloud-init job (pre-networking).
cloud-init-local.service
[ OK ] Reached target Network (Pre).
Starting Network Service...
systemd-networkd.service
[ OK ] Started Network Service.
Starting Wait for Network to be Configured...
Starting Network Name Resolution...
[ OK ] Finished Wait for Network to be Configured.
systemd-networkd-wait-online.service
Starting Initial cloud-ini… (metadata service crawler)...
[ OK ] Started Network Name Resolution.
systemd-resolved.service
[ OK ] Reached target Host and Network Name Lookups.
[ 13.857611] cloud-init[1172]: Cloud-init v. 20.1-10-g71af48df-0ubuntu5
running 'init' at Sun, 26 Apr 2020 21:59:27 +0000. Up 13.44 seconds.
[ 13.857972] cloud-init[1172]: ci-info: +++++++++++++++++++++++++++Net device
info++++++++++++++++++++++++++++
[ 13.858180] cloud-init[1172]: ci-info:
+--------+-------+-----------+-----------+-------+-------------------+
[ 13.858360] cloud-init[1172]: ci-info: | Device | Up | Address |
Mask | Scope | Hw-Address |
[ 13.858532] cloud-init[1172]: ci-info:
+--------+-------+-----------+-----------+-------+-------------------+
[ 13.858682] cloud-init[1172]: ci-info: | eth0 | False | . | .
| . | dc:a6:32:68:e2:e4 |
[ 13.858852] cloud-init[1172]: ci-info: | lo | True | 127.0.0.1 |
255.0.0.0 | host | . |
[ 13.859005] cloud-init[1172]: ci-info: | lo | True | ::1/128 | .
| host | . |
[ 13.859157] cloud-init[1172]: ci-info: | wlan0 | False | . | .
| . | dc:a6:32:68:e2:e5 |
[ 13.859308] cloud-init[1172]: ci-info:
+--------+-------+-----------+-----------+-------+-------------------+
[ 13.859459] cloud-init[1172]: ci-info: +++++++++++++++++++Route IPv6
info+++++++++++++++++++
[ 13.859613] cloud-init[1172]: ci-info:
+-------+-------------+---------+-----------+-------+
[ 13.859770] cloud-init[1172]: ci-info: | Route | Destination | Gateway |
Interface | Flags |
[ 13.859933] cloud-init[1172]: ci-info:
+-------+-------------+---------+-----------+-------+
[ 13.860132] cloud-init[1172]: ci-info:
+-------+-------------+---------+-----------+-------+
[ OK ] Finished Initial cloud-ini…ob (metadata service crawler).
cloud-init.service
[ OK ] Reached target Cloud-config availability.
[ OK ] Reached target System Initialization.
[ OK ] Started Daily apt download activities.
[ OK ] Started Daily apt upgrade and clean activities.
[ OK ] Started Periodic ext4 Onli…ata Check for All Filesystems.
[ OK ] Started Discard unused blocks once a week.
[ OK ] Started Refresh fwupd metadata regularly.
[ OK ] Started Daily rotation of log files.
[ OK ] Started Daily man-db regeneration.
[ OK ] Started Message of the Day.
[ OK ] Started Daily Cleanup of Temporary Directories.
[ OK ] Reached target Paths.
[ OK ] Reached target Timers.
[ OK ] Listening on D-Bus System Message Bus Socket.
[ OK ] Listening on Open-iSCSI iscsid Socket.
[ OK ] Listening on Socket unix for snap application lxd.daemon.
Starting Socket activation for snappy daemon.
[ OK ] Listening on UUID daemon activation socket.
[ OK ] Listening on Socket activation for snappy daemon.
[ OK ] Reached target Sockets.
[ OK ] Reached target Basic System.
Starting Accounts Service...
[ OK ] Started D-Bus System Message Bus.
dbus.service
[ OK ] Started Save initial kernel messages after boot.
dmesg.service
Starting Remove Stale Onli…t4 Metadata Check Snapshots...
[ OK ] Started irqbalance daemon.
irqbalance.service
Starting Dispatcher daemon for systemd-networkd...
[ OK ] Started Set the CPU Frequency Scaling governor.
ondemand.service
Starting System Logging Service...
Starting Snap Daemon...
Starting Login Service...
Starting WPA supplicant...
[ OK ] Finished Remove Stale Onli…ext4 Metadata Check Snapshots.
[ OK ] Started System Logging Service.
rsyslog.service
[ OK ] Started WPA supplicant.
wpa_supplicant.service
[ OK ] Reached target Network.
[ OK ] Reached target Network is Online.
[ OK ] Reached target Remote File Systems (Pre).
[ OK ] Reached target Remote File Systems.
Starting LSB: automatic crash report generation...
Starting Deferred execution scheduler...
Starting Availability of block devices...
[ OK ] Started Regular background program processing daemon.
cron.service
Starting Service for snap application lxd.activate...
Starting OpenBSD Secure Shell server...
Starting Permit User Sessions...
[ OK ] Started Deferred execution scheduler.
atd.service
[ OK ] Finished Availability of block devices.
blk-availability.service
[ OK ] Started Login Service.
systemd-logind.service
[ OK ] Started Unattended Upgrades Shutdown.
unattended-upgrades.service
[ OK ] Finished Permit User Sessions.
systemd-user-sessions.service
Starting Hold until boot process finishes up...
Starting Terminate Plymouth Boot Screen...
Ubuntu 20.04 LTS ubuntu ttyS0
ubuntu login:
** Affects: linux-raspi (Ubuntu)
Importance: Undecided
Status: New
** Tags: bot-comment
--
New ubuntu-20.04-preinstalled-server-arm64+raspi.img installed on R-Pi 4 does
not boot if usercfg.txt is edited
https://bugs.launchpad.net/bugs/1875454
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