Friday, May 1, 2020
Raspi Backup Ubuntu
straightforward approach with:
https://hobbyblogging.de/raspberry-pi-vollautomatisch-sichern
incremental file copy:
sudo rsync -avu --progress /media/BilderArchiv/ /media/Raid1_2/BilderArchiv/
dd if=/dev/mmcblk0 |gzip > /media/backup/2020_02_16_gzip_backup.gz
|
https://hobbyblogging.de/raspberry-pi-vollautomatisch-sichern
incremental file copy:
sudo rsync -avu --progress /media/BilderArchiv/ /media/Raid1_2/BilderArchiv/
Raspi3 change to usb boot
If the device fails to respond after this maximum timeout, it is possible to increase the timeout to five seconds using program_usb_boot_timeout=1 in config.txt
enable usb:
insert in cmdline.txt und boot up twice:
#enable usb boot
program_usb_boot_mode=1
Check for correct setting:
enable usb:
insert in cmdline.txt und boot up twice:
#enable usb boot
program_usb_boot_mode=1
Check for correct setting:
$ vcgencmd otp_dump | grep 17:
17:3020000aRaspi3 Ubuntu vcgencmd missing
Following guide here:
https://wiki.ubuntu.com/ARM/RaspberryPi
Optional PPAs
While the official image includes compatible firmware, bootloader and kernel, there are a few packages available in an unofficial PPA (ppa:ubuntu-raspi2/ppa) which are useful on the Raspberry Pi, including:
libraspberrypi-bin - VideoCore utilities from https://github.com/raspberrypi/userland such as vcgencmd, raspistill, etc.
libraspberrypi-bin-nonfree - Binary VideoCore utilities not provided in the open source userland repository, currently vcdbg and edidparser.
xserver-xorg-video-fbturbo - An accelerated x.org video driver, though this is limited to hardware accelerated window moving/scrolling on the Raspberry Pi.
hello-dkms - Not strictly to do with the Raspberry Pi, but a small example DKMS project to test building kernel DKMS modules.
To install:
sudo add-apt-repository ppa:ubuntu-raspi2/ppa
sudo apt-get update
Further/updated Raspberry Pi packages can be found in the Ubuntu Pi Flavour Maker PPA. Many of these packages rely on the user being a member of groups:
sudo groupadd -f --system gpio
sudo groupadd -f --system i2c
sudo groupadd -f --system input
sudo groupadd -f --system spi
https://wiki.ubuntu.com/ARM/RaspberryPi
Optional PPAs
While the official image includes compatible firmware, bootloader and kernel, there are a few packages available in an unofficial PPA (ppa:ubuntu-raspi2/ppa) which are useful on the Raspberry Pi, including:
libraspberrypi-bin - VideoCore utilities from https://github.com/raspberrypi/userland such as vcgencmd, raspistill, etc.
libraspberrypi-bin-nonfree - Binary VideoCore utilities not provided in the open source userland repository, currently vcdbg and edidparser.
xserver-xorg-video-fbturbo - An accelerated x.org video driver, though this is limited to hardware accelerated window moving/scrolling on the Raspberry Pi.
hello-dkms - Not strictly to do with the Raspberry Pi, but a small example DKMS project to test building kernel DKMS modules.
To install:
sudo add-apt-repository ppa:ubuntu-raspi2/ppa
sudo apt-get update
Further/updated Raspberry Pi packages can be found in the Ubuntu Pi Flavour Maker PPA. Many of these packages rely on the user being a member of groups:
sudo groupadd -f --system gpio
sudo groupadd -f --system i2c
sudo groupadd -f --system input
sudo groupadd -f --system spi
Raspi Ubuntu Debugging
Let dmesg -w run
Let run top to see heavy loads
Let vgencmd
https://medium.com/@kevalpatel2106/monitor-the-core-temperature-of-your-raspberry-pi-3ddfdf82989f
nano monitor-temp.py
import os
import time
def measure_temp():
temp = os.popen("vcgencmd measure_temp").readline()
return (temp.replace("temp=",""))
while True:
print(measure_temp())
time.sleep(1)
python monitor-temp.py
Let run top to see heavy loads
Let vgencmd
https://medium.com/@kevalpatel2106/monitor-the-core-temperature-of-your-raspberry-pi-3ddfdf82989f
nano monitor-temp.py
import os
import time
def measure_temp():
temp = os.popen("vcgencmd measure_temp").readline()
return (temp.replace("temp=",""))
while True:
print(measure_temp())
time.sleep(1)
python monitor-temp.py
Raspi3 B+ external SSD USB freezes and hangs
For some time I've tried to get my Raspi3+ext SSD Setup working. Currently I do a complete Backup via dd towards a NAS drive. The Image sizes are rougly about 100 GB.
between 2GB und 100 GB the Backup always crashes.
The SSD ist connected directly to the USB Port without additional Powersupply.
So far I've had the following errors:
So far I've tested the following:
External Power Supply for ssd
Differen connector for SSD
USB Stick instead SSD
Backup from SSD to USB Stick
Backup from SSD to SD Card
Backup from USB Stick to SD Card
Everytime I get some kind of Kernel error, cpufreq error aso.
Next Step ist to test Raspbian instead of ubuntu.
Till now, raspbian was able to do a successfull backup to sd card in the same pi.
Next Step ist Backup to Network NAS.
If that works as well I'll try my ssd with Raspbian an Backup to NAS.
between 2GB und 100 GB the Backup always crashes.
The SSD ist connected directly to the USB Port without additional Powersupply.
So far I've had the following errors:
<pre class="brush: csharp">// Comment
watchdog: BUG: soft lockup - CPU#2 stuck fpr 23s: [kworker/2:0:3391]
....
watchdog: BUG: soft lockup - CPU#2 stuck fpr 23s: [ksoftirqd/1:18]
...
watchdog: BUG: soft lockup - CPU#2 stuck fpr 23s: [swapper/2:0]
....
rcu: $1-...0: (2ticks this >GP) idle=......02 softirq=12313/123123 fqs=18361
...
cpufrq: __target_index: failed to change cpu frequency: -22
....
watchdog: BUG: soft lockup - CPU#2 stuck for 22s! [(d-logind):5635]
....
rcu sched kthread starved for 1233 jiffies
RCU grace period k-thread stack dump
</pre>
So far I've tested the following:
External Power Supply for ssd
Differen connector for SSD
USB Stick instead SSD
Backup from SSD to USB Stick
Backup from SSD to SD Card
Backup from USB Stick to SD Card
Everytime I get some kind of Kernel error, cpufreq error aso.
Next Step ist to test Raspbian instead of ubuntu.
Till now, raspbian was able to do a successfull backup to sd card in the same pi.
Next Step ist Backup to Network NAS.
If that works as well I'll try my ssd with Raspbian an Backup to NAS.
Friday, April 3, 2020
Saturday, March 21, 2020
Raspi Ubuntu Raid 1
Raid 1 on ubuntu setup
https://ourcodeworld.com/articles/read/736/how-to-implement-a-software-raid-1-array-mirror-in-ubuntu-16-04
:/home/shares$ sudo mdadm --detail --scan
ARRAY /dev/md0 metadata=1.2 name=iOBroker1:0 UUID=ae338e6c:87421f87:56adea0f:e4e066c0
:/home/shares$ sudo mdadm --detail --scan | sudo tee -a /etc/mdadm/mdadm.conf
ARRAY /dev/md0 metadata=1.2 name=iOBroker1:0 UUID=ae338e6c:87421f87:56adea0f:e4e066c0
debugging and getting info:
~$ sudo mdadm -E /dev/sdc
/dev/sdc:
MBR Magic : aa55
Partition[0] : 4294967295 sectors at 1 (type ee)
:~$ cat /proc/mdstat
Personalities : [raid1] [linear] [multipath] [raid0] [raid6] [raid5] [raid4] [raid10]
md0 : active raid1 sdb[1] sda[0]
244066432 blocks super 1.2 [2/2] [UU]
bitmap: 0/2 pages [0KB], 65536KB chunk
Statusanzeige des Software-RAIDs
~# mdadm -D /dev/mdN
sudo mdadm -D /dev/md0
sudo cat /etc/mdadm/mdadm.conf
regular error with mount.cifs -2 can relate to version being
Try options vers=1.0 or vers=2.0
https://ourcodeworld.com/articles/read/736/how-to-implement-a-software-raid-1-array-mirror-in-ubuntu-16-04
:/home/shares$ sudo mdadm --detail --scan
ARRAY /dev/md0 metadata=1.2 name=iOBroker1:0 UUID=ae338e6c:87421f87:56adea0f:e4e066c0
:/home/shares$ sudo mdadm --detail --scan | sudo tee -a /etc/mdadm/mdadm.conf
ARRAY /dev/md0 metadata=1.2 name=iOBroker1:0 UUID=ae338e6c:87421f87:56adea0f:e4e066c0
debugging and getting info:
~$ sudo mdadm -E /dev/sdc
/dev/sdc:
MBR Magic : aa55
Partition[0] : 4294967295 sectors at 1 (type ee)
:~$ cat /proc/mdstat
Personalities : [raid1] [linear] [multipath] [raid0] [raid6] [raid5] [raid4] [raid10]
md0 : active raid1 sdb[1] sda[0]
244066432 blocks super 1.2 [2/2] [UU]
bitmap: 0/2 pages [0KB], 65536KB chunk
Statusanzeige des Software-RAIDs
~# mdadm -D /dev/mdN
sudo mdadm -D /dev/md0
sudo cat /etc/mdadm/mdadm.conf
regular error with mount.cifs -2 can relate to version being
Try options vers=1.0 or vers=2.0
Monday, March 9, 2020
Raspi 4GB problem Ubuntu
https://askubuntu.com/questions/94542/how-can-i-repair-my-installation
In the meantime, developers can use a temporary workaround to enable USB on the 4GB RAM version. The temporary solution will consist in editing the file /boot/firmware/usercfg.txt to limit RAM to 3GB, as follows:
https://ubuntu.com/blog/roadmap-for-official-support-for-the-raspberry-pi-4
In the meantime, developers can use a temporary workaround to enable USB on the 4GB RAM version. The temporary solution will consist in editing the file /boot/firmware/usercfg.txt to limit RAM to 3GB, as follows:
https://ubuntu.com/blog/roadmap-for-official-support-for-the-raspberry-pi-4
total_mem=3072
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