0
votes
0answers
41 views

Beaglebone: Backup image mounts root as Read-only

After I had completed creating applications for my BB white (running ubuntu), I created a backup of the SD card using-> sudo dd if=/dev/disk2 of=/Volumes/BONE/bone_custom.img Recently, I tried to ...
1
vote
1answer
214 views

Why isn't sda1 showing up in dev and how can I fix that?

I have an embedded Linux device and I was trying to copy some files to it. I plugged in a USB stick, the dmesg shows that it was recognized, but for some reason /dev/sda1 never showed up. I'm trying ...
1
vote
2answers
85 views

live dd over a mounted read-only root partiton

I'm trying to conceive a firmware update mechanism for a Linux-based embedded system without an additional initrd/initramfs/whatever. From within the running system which has a read-only mounted root ...
13
votes
4answers
468 views

Corruption-proof SD card filesystem for embedded Linux?

Recently we had a rather unpleasant situation with our customer - Raspberry Pi based "kiosk" used to display remote sensing data (nothing more fancy than a kiosk mode browser displaying a ...
3
votes
1answer
311 views

Booting using initramfs instead of uramdisk

I am working on Zynq Microzed board. It is booting perfectly with uramdisk.image.gz but I trying to boot it with initramfs.cpio. In this regard I have made following changes in header files of ...
1
vote
0answers
140 views

Replacing default initramfs with my own

I followed this article to develop my own sample intramfs.cpio Now I have to put this in my kernel and compile. The procedure that I follw for petlinux is that I first run petalinux-config (and ...
0
votes
0answers
316 views

No filesystem could mount root, tried: jffs2

CPU: ARM Cortex A-9 This is the kernel command line that I appears in configuration menu root=mtd:jffs2 rw rootfstype=jffs2 console=ttyps0,115200 I have put three files in flash: BOOT.BIN in mtd0 ...
4
votes
2answers
253 views

File system that never breaks (data loss acceptable)

There're several existing topics revolving around this issue, but what I seek is slightly different. I have an sd card on an embedded Linux and it suffers from power loss. I might be able to modify ...
0
votes
1answer
144 views

Change the root filesystem on an embedded system

I'm using Buildroot to generate an embedded Linux with a kernel v. 2.6.39, which in the end starts busybox. Everything works fine when building with Initramfs as "rootfs". But Initramfs isn't the best ...
7
votes
3answers
1k views

What filesystem offers best protection for securing data against corruption due to power loss?

I am running a small uClibc and busybox based embedded system on an x86 device. I am using an initramfs but I also mounting a custom ext3 directory on a compact flash device in IDE mode that I am ...
3
votes
1answer
397 views

UBI bad block management

Anyone know what happens when UBI uses up all its reserved PEBs that are reserved for bad block management? For example say I have a UBI volume that has 14 PEBs reserved # ubinfo -d 1 ubi1 Volumes ...
1
vote
1answer
236 views

Recommendation on filesystem for embedded device - RAM or USB

It's been 4 years since I stopped working on my Linux internet radio box. My Linux box was Ubuntu 6.04 with Ext3 fs. At user-space, everything works perfectly except I occasionally bumped into ...
7
votes
4answers
3k views

Safely use SD cards when power can go out at any time

We're working on a small embedded Linux system (2.6.35-ish) with a smallish internal NAND device for the OS and applications (250-500Meg) and an SD card with 8Gb SDHC SD cards for data. The unit's ...
1
vote
2answers
366 views

Swap root at runtime

I am developing an embedded Linux system. The system is usually installed by creating a ISO file which is written to a USB stick the board can boot from. To make the installation possible to do ...