raspberry pi 4: Both Raspberry Pi OS and ubuntu boot with just a USB hard disk
And now I'm changing to xfce4, which has multiple workspaces
| This xfce4 change is https://qiita.com/tyokai/items/20e3fd2ebf36be6d0f7f |
|---|
By the way, the startup scenery of only USB is as follows
At the beginning of the video, you can see that the micro SD card is not stuck. https://www.youtube.com/watch?v=hN6YwbfSHOw
Raspberry Pi 4 Raspberry Pi 4 is connected to ** ngff attached to SATA adapter ** through USB3 port.
In this USB3.0 + ngff environment
# hdparm -t /dev/sda2
/dev/sda2:
Timing buffered disk reads: 972 MB in 3.00 seconds = 323.86 MB/sec
I get a great number
# fdisk -l /dev/sda
Disk /dev/sda: 59.6 GiB, 64023257088 bytes, 125045424 sectors
Device Start End Sectors Size Type
/dev/sda1 **2048** 526335 524288 256M Microsoft basic data
/dev/sda2 526336 115869695 115343360 55G Linux filesystem
/dev/sda3 115869696 125045390 9175695 4.4G Linux swap
# free
total used free shared buff/cache available
Mem: 1858340 432344 760548 201936 665448 1129788
Swap: 4587840 0 4587840
And memory 2G Raspberry Pi 4
# ./comment-out.bat /etc/dphys-swapfile
CONF_SWAPSIZE=0
so
# ps ax| grep dphys-swapfile
1229 pts/0 S+ 0:00 grep dphys-swapfile
So dphys-swapfile is not working
| I saw https://www.youtube.com/watch?v=o5DeLXaYNZM |
|---|
| The theme of Darwin's arrival is that animals are their own, even if they fall down.seedI will do my best to protect |
| Therefore, one day the human species must escape the Earth and migrate to another Earth-like planet X somewhere in this universe. |
| For that purpose, the current science will not do anything. |
| Engineering makes the idea of physics a substance |
| However, even if only humans are on Planet X, it is not like being on a rocky island in the sea. Human cannot live unless both animals and plants are entangled with bacteria. The earth is the life form https://www.youtube.com/watch?v=I8Np1s86qLA |
Below is the main topic
| 2020-08-20-raspios-buster-armhf.Burn in img to micro SD card and start from now on |
|---|
| After that |
The rest is just
https://www.tomshardware.com/how-to/boot-raspberry-pi-4-usb It's a malt whiskey that just follows and doesn't add anything
sudo apt update
sudo apt full-upgrade
sudo rpi-update
Reboot
sudo rpi-eeprom-update -d -a
Reboot
sudo raspi-config
After this**Original text**Please follow the
If you are not sure about the original text, please refer to the following as well.
What about this result?
# df
Filesys 1K-Block can be used can be used%Mount position
/dev/root 76136324 4160332 68065384 6% /
devtmpfs 823384 0 823384 0% /dev
tmpfs 955480 0 955480 0% /dev/shm
tmpfs 955480 16940 938540 2% /run
tmpfs 5120 4 5116 1% /run/lock
tmpfs 955480 0 955480 0% /sys/fs/cgroup
/dev/sda1 258095 55024 203072 22% /boot
tmpfs 191096 0 191096 0% /run/user/1000
# cat /etc/fstab
proc /proc proc defaults 0 0
PARTUUID=44bd4930-01 /boot vfat defaults 0 2
PARTUUID=44bd4930-02 / ext4 defaults,noatime 0 1
# a swapfile is not a swap partition, no line here
# use dphys-swapfile swap[on|off] for that
root@raspberrypi:/home/pi# blkid /dev/sda1
/dev/sda1: LABEL_FATBOOT="boot" LABEL="boot" UUID="6284-658D" TYPE="vfat" PARTUUID="44bd4930-01"
root@raspberrypi:/home/pi# blkid /dev/sda2
/dev/sda2: LABEL="rootfs" UUID="3a324232-335f-4617-84c3-d4889840dc93" TYPE="ext4" PARTUUID="44bd4930-02"
root@raspberrypi:/home/pi# ls -l /
76 in total
drwxr-xr-x 2 root root 4096 August 20 19:36 bin
drwxr-xr-x 3 root root 3584 January 1 1970 boot
drwxr-xr-x 3 root root 4096 January 1 1970 boot.bak
drwxr-xr-x 18 root root 3880 October 14 18:57 dev
drwxr-xr-x 109 root root 4096 October 14 18:51 etc
drwxr-xr-x 3 root root 4096 August 20 19:31 home
drwxr-xr-x 17 root root 4096 October 14 18:39 lib
drwx------2 root root 16384 August 20 19:53 lost+found
drwxr-xr-x 3 root root 4096 October 14 18:56 media
drwxr-xr-x 2 root root 4096 August 20 19:26 mnt
drwxr-xr-x 4 root root 4096 August 20 19:38 opt
dr-xr-xr-x 172 root root 0 January 1 1970 proc
drwx------4 root root 4096 October 14 18:54 root
drwxr-xr-x 28 root root 840 October 14 19:11 run
drwxr-xr-x 2 root root 4096 August 20 19:36 sbin
drwxr-xr-x 2 root root 4096 August 20 19:26 srv
dr-xr-xr-x 12 root root 0 January 1 1970 sys
drwxrwxrwt 11 root root 4096 October 14 19:11 tmp
drwxr-xr-x 11 root root 4096 August 20 19:38 usr
drwxr-xr-x 11 root root 4096 August 20 19:54 var
root@raspberrypi:/home/pi# cat /boot/cmdline.txt
console=serial0,115200 console=tty1 root=PARTUUID=44bd4930-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait quiet splash plymouth.ignore-serial-consoles
Everything is a nod result
What I did after this
1) Clone 80GB to 160GB with duplicator
2) Inflate with gparted
３）
systemctl stop dphys-swapfile
systemctl disable dphys-swapfile
cat /etc/fstab
proc /proc proc defaults 0 0
PARTUUID=44bd4930-01 /boot vfat defaults 0 2
PARTUUID=44bd4930-02 / ext4 defaults,noatime 0 1
# a swapfile is not a swap partition, no line here
# use dphys-swapfile swap[on|off] for that
/dev/sda3 swap swap defaults,noatime 0 2
４）apt install xfce4
５）
apt install sddm
sddm --example-config > /etc/sddm.conf
systemctl enable sddm
head /etc/sddm.conf
[Autologin]
# Whether sddm should automatically log back into sessions when they exit
Relogin=false
# Name of session file for autologin session (if empty try last logged in)
Session=
# Username for autologin session
User=pi
When making a clone, it will not work if it is UUID
# ./comment-out.bat /boot/cmdline.txt
console=serial0,115200 console=tty1 root=/dev/sda2 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait quiet splash plymouth.ignore-serial-consoles
# ./comment-out.bat /etc/fstab
proc /proc proc defaults 0 0
/dev/sda1 /boot vfat defaults 0 2
/dev/sda2 / ext4 defaults,noatime 0 1
/dev/sda3 swap swap defaults,noatime 0 2
Only those who understand ** Dangerous ** sdb to sdc clone script
./comment-out.bat ./rpi4-douki.bat-shuusei
-------------------
umount /mb1
umount /mb2
umount /mc1
umount /mc2
fdisk -l
echo '----------------'
echo '----------------'
echo '----------------'
mkdir -p /mb1
mkdir -p /mb2
mkdir -p /mc1
mkdir -p /mc2
mount /dev/sdb1 /mb1
mount /dev/sdb2 /mb2
mount /dev/sdc1 /mc1
mount /dev/sdc2 /mc2
echo '----------------'
echo '----------------'
echo '----------------'
df
read X
echo $X
rsync -avHx --delete /mb1/ /mc1/
rsync -avHx --delete /mb2/ /mc2/
echo '----------------'
echo '----------------'
echo '----------------'
df
cat /mc1/cmdline.txt
cat /mc2/etc/fstab
rpi4 has no room to connect to HDMI on the monitor (already occupied by manjarolinux)
In ** vnc over ssh ** below
In other words, ** xfce4 Raspberry Pi 4 ** is coming in manjar linux.
ubuntu (USB hard disk only)
| Much better than Raspberry Pi OS |
The instrument is as follows https://raspberry-akita.blogspot.com/2020/10/raspberry-pi-4-sdusb.html
How it works without a micro SD card ** https://youtu.be/DmvVvbR0oAA
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