Hi juani:
See the following installation process for pi3b + to boot from usb-hdd...
This process was written by me. The first time I operated on these steps, usb-hdd could boot normally without prompting sda1. device... error.
But when I did it again.. Sda1. device came out again.. And wlan0. device will follow.. I spent a night repeating the following steps many times. I still couldn't succeed.. I don't know why.
Let Rune 0.5bata boot from usb-hdd:
Hardware:
A. PI3B + x1 (If you use PI3B, you must make sure that you have turned on USB Boot Mode and not all U disks are compatible. It is recommended to use 3B + and its compatibility mode is better than 3B!)
B. 4GB or 8GB SD cards
C. 2.5 inch USB-HDD hard disk
D. HDMI display (if you need)
Installation:
Step 1 Download img:
runeaudio-0-5-beta-for-all-raspberry-pi-models-t6532.html #p25819
Step 2 decompresses the downloaded 20180903_runeaudio_rpiB2.img.gz file to 20180903_runeaudio_rpiB2.img
Step 3: Open your Win32 Disk Image program on Windows - > Device option, select your SD card - > Image File option, and find the 20180903_runeaudio_rpiB2.img file
Step 4 Click on -> Write in Win 32 Disk Image
Step 5 of HDD opens your Win32 Disk Image program on Windows - > Device option, select your usb-hdd hard disk - > Image File option, and find the 20180903_runeaudio_rpiB2.img file
Step 6 Click on -> Write in Win 32 Disk Image
Step 7 Open the cmdline. TXT file in the usb-hdd folder on Windows. It should be "root=/dev/mmcblk0p2" and make it "root=/dev/sda2" (no number) - > save.
Step 8: Prepare your PI3B + to plug in SD card and RJ-45 network (Important: Do not plug in usb-hdd. Otherwise, the system will fail)
Step 9 Open PI3B + Power Supply
Step 10 Log in to Rune with SSH (id: root password: rune)
After login, type shutdown now and wait 10 seconds to turn off PI power
Pi plug in usb-hdd to boot
Step 11
Type in the following order:
Mount/dev/sda2/mnt
Nano/mnt/etc/fstab
Change line 5 / dev / mmcblk0p1 to / dev / sda1 - > Operate your keyboard CTRL + X and press "Y" < - ENTER to exit
Step 11 Input shutdown now and wait 5 seconds to turn off PI3B + power supply
Step 12 Unplug your SD card - > Turn on the PI3B + power supply
If you use the HDMI monitor, you will find that the boot speed is very slow... Yes. This is the reading speed of HDD - please wait patiently and prompt sda1. device... error.
Please wait patiently for the boot to complete.
Step 13 After booting up, type in the background of Rune with ssh.
Cp/etc/udev/rules.d/rune_usb-stor.rules/home/rune_usb-stor.rules
Nano/etc/udev/rules.d/rune_usb-stor.rules
Clear everything out of it
Post all the following
# KERNEL= "sd*", SUBSYSTEM= "usb", RUN+="/var/www/command/ui_notify.php'Usb Storage'event simplemessage"
# KERNEL="sd?1", "ACTION="add","RUN+="/ var/www/command/ui_notify.php'Usb Storage'connected simplemessage"
KERNEL= "sdb1", ACTION= "add", RUN+="/ var/www/command/ui_notify.php'Usb Storage'connected simplemessage"
KERNEL= "sdc1", ACTION= "add", RUN+="/ var/www/command/ui_notify.php'Usb Storage'connected simplemessage"
KERNEL= "sdd1", ACTION= "add", RUN+="/ var/www/command/ui_notify.php'Usb Storage'connected simplemessage"
KERNEL= "sde1", ACTION= "add", RUN+="/ var/www/command/ui_notify.php'Usb Storage'connected simplemessage"
KERNEL= "sdf1", ACTION= "add", RUN+="/ var/www/command/ui_notify.php'Usb Storage'connected simplemessage"
KERNEL="sd?1", "ACTION="remove","RUN+="/ var/www/command/ui_notify.php'Usb Storage'disconnected simplemessage"
Operate your keyboard CTRL + X and press "Y" <--ENTER to exit
Step 14 Type reboot on SSH to restart the system
Sda1. device error still occurs...