All Questions
32
questions
1
vote
0
answers
36
views
Need to modify OS of a device which use Embeded linux with u-boot
I have a Congatec device running Linux with U-Boot (U-Boot SPL 2015.10+fslc+g4e28939_).
I need to modify certain settings within this embedded Linux environment.
The challenge lies in the fact that ...
- 11
0
votes
0
answers
163
views
Clone of a functional 32GB SD card doesn't boot
I have a Pine64 from the original Kickstarter (2016.) It boots from a 32GB SD card, which I've imaged from an Ubuntu16 Pine64 image file.
I've created a full disk backup of this 32GB SD card using ...
- 238
1
vote
1
answer
354
views
How to write "Magic Number" boot block to the first sector of my flash drive
I want to try and see how the BIOS detects boot device using the magic number (0xaa55) by writing
e9 fd ff 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
*
00 ...
- 11
1
vote
1
answer
856
views
"systemd-tmpfiles-setup.service" slow on read-only filesystem
On a headless embedded computer (booting on a read-only filesystem), I see that systemd-tmpfiles-setup.service is rather slow, and prevents other services to start earlier (I checked with systemctl ...
- 2,549
0
votes
1
answer
35
views
Moving the third partition might prevent the boot of os
I have a wokring image file for an ARM embedded Linux system.
The rootfs partition is way too big and I want to shrink it.
Initial scenario:
Disk /dev/loop0: 7,22 GiB, 7744782336 bytes, 15126528 ...
- 733
1
vote
0
answers
692
views
Running Linux Live OS on ARM embedded device
I own an embedded device with ARM920T SoC (https://pdf.dzsc.com/ARM/ARM920T.pdf)
The device is in good shape but the OS (Windows Embedded CE 6.0) was corrupted and does not start anymore (actually it ...
- 111
1
vote
1
answer
219
views
The host machine doesn't recognize BeagleBone device with SD card inserted
I am trying to boot BeagleBone Black (BBB) off the SD card that contains boot images and rootfs files, but when I have it inserted into the BBB, I don't see any device being detected by the host ...
- 141
2
votes
0
answers
824
views
rngd is running with /dev/hwrng; boot hangs long at "Initalizing entropy source hwrng"
My i.MX6 machine with yocto linux takes horribly long to boot. On the console I can see that it's hanging at initializing the hardware random number generator:
Starting system message bus:
[ 8....
- 13.5k
-1
votes
1
answer
7k
views
u-boot stuck at Starting Kernel
My Target Setup:
SOC: STM32H743 (Cortex m7 single core)
Internal Flash: 2MB
Board: Waveshare CoreH7XXI
On-board DRAM: 8MB, Start_Address: 0xd0000000, Size_in_bytes: 0x7A1200
SDCARD: 1GB
Bootloader: ...
0
votes
1
answer
898
views
UBI layout volume not found
I am following Bootlin's embedded Linux training which aims to put an embedded Linux system on an Atmel SAMA5D4 Xplained board (theory slides, practical lab instructions) and I am stuck a putting the ...
- 103
3
votes
3
answers
2k
views
Reduce Boot time
I would be interested in finding ways to reduce the boot time, specially in embedded-related environments.
I've read somewhere of a method to avoid the kernel to load some drivers or modules but I'm ...
- 179
0
votes
0
answers
112
views
Linux kernel update
I'm trying to update the kernel version from 3.14 to 4.0.9 of Debian distribution.
For boot I'm using U-Boot, and my microcontroller is imx6 (ARM architecture).
I have the sources for the 4.0.9 ...
- 1
1
vote
2
answers
619
views
How to see debug logs from Raspberry pi 3 during boot process?
I am currently trying to debug a "black screen" on a Raspberry Pi.
The Pi is plugged to an in-house PCB using connector of the Pi and the LCD screen is connected on this in-house board.
Now, ...
user240177
5
votes
1
answer
81
views
How to force the execution of a script when / is not mounted?
I have bricked a linux embedded device.
I was experimenting with it, and added my own path to /etc/ld.so.conf. The libc I included in my path is not compatible with this particular device, so I lost ...
- 161
0
votes
1
answer
501
views
How can I boot alpine-linux from CF card (in Soekris net4801)?
I've installed according to https://wiki.alpinelinux.org/wiki/Create_a_Bootable_Compact_Flash#Automated and successfully activated serial console as outlined in https://wiki.alpinelinux.org/wiki/...
- 517