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Questions tagged [embedded-linux]

For questions related to Linux on embedded systems (e.g. mobile, consumer electronics, networking) or single-board computers (e.g Raspberry Pi)

For questions related to Linux on embedded systems (e.g. mobile, consumer electronics, networking) or single-board computers (e.g Raspberry Pi)

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You find more information about embedded linux in this forum about Embedded Linux or by mere googling 'Embedded Linux'.

123 questions
23
votes
4 answers

Can unexpected power loss harm a Linux install?

I am developing an application on a Linux embedded board (runs Debian) e.g. Raspberry Pi, Beagle Board/Bone, or olimex. The boards works on an environment that the electricity is cut unexpectedly (it is far complicated to place PSU, etc.) and it…
user208554
6
votes
2 answers

How do I boot [embedded] linux from sd card?

I am hacking together a quick embedded linux system on a DM816x evm board. Previously I have been using TFTP and NFS to load my kernel and root filesystem to the board. I am now trying to switch over to loading everything from an SD card. I have my…
Brandon Yates
  • 173
6
votes
5 answers

Telnet or SSH to Embedded Linux based NAS?

Do you happen to know whether it is possible to telnet or SSH to LG N1A1DD1 NAS? It seems to have lots of features that I don't need (including FTP) but I couldn't find any mention of the ability to telnet or SSH to it. If telneting or SSH-ing to it…
ef2011
  • 409
5
votes
1 answer

mounted filesystem without journal. Opts: (null) while mounting ext4 fs

I am using Beaglebone black with NFS, I have formatted internal eMMC with ext4 filesystem, when i mount the file system using following command message popups telling filesystem is mounted without journal, so how can i mount the filesystem with…
ART
  • 395
5
votes
2 answers

Automatically load kernel module at boot. (Angstrom)

i know how to load your module automatically in ubuntu. you put your module in /etc/modules But, i compile a kernel and filesystem for an embedded system which i am working on it. but there is no "modules" file in /etc directory. (i am using…
thehilmisu
  • 173
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5
votes
4 answers

Unmounting Detachable devices (eSATA,USB storage) in Linux

A detachable device like eSATA, USB drive can be abruptly removed (by simply pulling the plug). If there are open file handles on a partition, then this partitions won't unmount, i.e. the Linux umount command will fail, even AFTER the drive is…
solidstate
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4
votes
1 answer

Which Linux distribution for vehicle LCD instrument panel

I will be designing an instrument panel for a vehicle to display the common gauges that you would find in a car - (speedometer, rpm, fuel level, oil pressure, etc.). We have selected a 7" LCD and are in the process of narrowing down the hardware…
Brent
  • 143
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3
votes
0 answers

Chipsee 7 inch LCD support in Linux kernel 3.14

Has anybody ported Chipsee 7 inch LCD on Linux kernel 3.14 or later ? Is there any patch available for the same ? If no patches any suggestion porting Chipsee LCD support from Linux kernel 3.8 to Linux kernel 3.14 ?
ART
  • 395
3
votes
3 answers

Cannot access device over network interface. Now what?

I made a really dumb mistake today. I bought a network camera a few days ago from some reseller on eBay, and it's running embedded Linux. I'm not sure what I did, but I edited /etc/network/interfaces, rebooted, and now the device is no longer taking…
Kevin Evans
  • 85
3
votes
2 answers

ssh & ping to target works from desktop but not from laptop?

Now where is the problem if ssh & ping to target works from desktop but not from laptop ? I have been able to ssh to my target from my DESKTOP using following command :--- Target IP is fixed in /etc/network/interfaces 1> target ip - 192.168.0.202 …
Allan
  • 131
3
votes
1 answer

buildroot rootfs on arm board

After building buildroot with Kernelimage and rootfs (jffs2) i flashed them to my board. bootargs set to: mem=64M console=ttyS0,115200 root=/dev/mtdblock1 rw rootfstype=jffs2 Now when i boot i get the following error: VFS: Cannot open root device…
Gobliins
  • 135
3
votes
0 answers

How to monitor file changes on a Linux device using inotify and cpp?

I have cpp application running on an embedded-linux device. Now, I want the application to report if there is a change in a file on the device. I came across std::filesystem library and inotify(recommended) but couldn't fully understand how to…
Preeti
  • 141
3
votes
1 answer

Screen issue: getpwuid can't identify your account

I am trying to run the static binary screen. I have created /etc/passwd and /etc/group. When I did ls -la /etc/passwd /etc/group I didn't get any errors, but when I am trying to run ./screen I get: Getpwuid() can't identify your account! This is on…
Евгений Камнев
  • 31
3
votes
1 answer

Missing TUN/TAP driver on embedded Linux

I came a long way to encounter this problem, so several dead end steps will be omitted. I was trying to create a TAP interface. The first step taken was to check if I have the needed tool (which I seemingly have): root@analog:~# ip tuntap…
KateOleneva
  • 41
3
votes
2 answers

how to read CSD register from eMMC using mmc-utils

We have beaglebone black based custom board with 512MB RAM and 4GB eMMC. I was trying to read CSD register from the board however I am getting following error. # mmc csd read /dev/mmcblk0 MMC/SD information directory '/dev/mmcblk0' does not…
ART
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