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Questions tagged [rootfs]

A Rootfs is a directory structure suitable as an initial mount point for *nix systems. It always includes the binary and support files to run the init (or first) process.

A Rootfs is a directory structure suitable as an initial mount point for *nix systems. It always includes the binary and support files to run the init (or first) process.

It has a specific meaning for the Linux kernel, where a ramfs/tmpfs is populated with a compressed image and it is freed after the target/final file system is mounted. People using other OSes (and even Linux) may have alternate meanings.

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Is it possible to build dumpimage from u-boot for arm .?

I am trying to extract a FIT image created by mkimage on an ARM board. Usually when we build u-boot, mkimage and dumpimage are built for the host. I would instead like to cross-compile and install in a ramfs. Is there any method to do this? Rewrite…
pritam
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Updating root file system in buildroot generated image

Few months back I have installed embedded Linux on an i.MX6 board using Mfgtools with image generated by buildroot. I have made changes on the root file system and generated a new root file system. I don't want to reflash the existing setup, instead…
md.jamal
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Kernel panic when using usb device as rootfs

I formatted the usb drive and copied my rootfs files in. And modified the u-boot boot args : root=/dev/sda1. Then kernel panic: [ 5.910995] VFS: Cannot open root device "sda1" or unknown-block(0,0): error -6 [ 5.918354] Please append a correct…
Shuang Han
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Buildroot to load full rootfs into Ram

I have an Arm based embedded board. Currently the RootFS is squashfs. I am still in the development phase. My current workflow is: Make changes in the development machine. Create new Root FS image. Burn the image to the flashdisk in board. Reboot…
silentnights
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How can i turn on Developer Mode on ChromeOS launched on VirtualBox?

I have launched ChromeOS on VirtualBox. Now I want to turn on Developer Mode to disable the verification of rootfs (root file system). How can I turn on this mode without pressing buttons on laptop, because it`s launched virtually? Maybe there are…
RefFS
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Compiling busybox as BFLT executable

I'm compiling a busybox rootfs for a no-mmu architecture. The output from this compile is a ELF 32-bit LSB executable. file _install/bin/busybox: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), statically linked, for GNU/Linux 2.6.32, I…
user3142
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Size constraints of initramfs on ARM?

I'm creating a bootable Linux system on a PicoZed board (ARM CortexA9 core), and I've run into a "limitation", which I don't think really is a limitation (I get the feeling it's another problem masquerading as a limitation). I boot by starting the…
cypheratheist
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extend the size of already existing ext2 image

Is there a possibility to extend the size of already existing ext2 image? This image is a ramdisk based root file system. I already have an image. but I want to extend the size of this image. Is it possible to extend the size of this image.
kumar
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Linux boot process

I'm playing a little bit with the kernel linux and I got some errors during the boot process : Kernel panic - not syncing: Attempted to kill init! I want to understand how the boot process of the linux kernel works in general, and especially…
EngineerN
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Do modification to rootfs (petalinux on zynq)

I've installed Petalinux 2014.4 on my Zynq board, but the NAND flash is not mounted when I boot up the board. I'm wondering if it's possible to change rootfs.cpio by extracting the package and then do changes to fstab and so make a cpio arhcive…
user2466860
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Init process not found when booting with ramdisk as rootfs

I'm trying to setup a ramdisk for a setup I have with AT91SAM9261 and 2.6.30 kernel. I know you would say why don't I use initramfs? I will use also that one, as of now I would like to check if I can boot with a ramdisk as rootfs. I have already a…
mdaniel
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How to get working rootfs (initrd) on an ARM board?

I'm trying to make work an embedded linux on a CSB337 board with AT91RM9200 (ARM920T). I compile the kernel 3.2.63 using at91rm9200_defconfig. I see the kernel booting but I have a problem with rootfs (initrd). I will try to explain the context but…
tuppi-ovh
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Error in Mounting jffs2 file system in Nandflash

I m using at91sam9m10g45ek board.i want to boot from Nandflash. linux 3.12 not able to mount jffs2 during booting from nandflash. My u-boot Parameter : bootargs=console=ttyS0,115200 earlyprintk…
Chintan Patel
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Adding hda/hdb device to android emulator

I want to add a virtual hard disk & additional flash memory to android emulator For that I created qemu raw images using below command: qemu-img create internal.img 4G qemu-img create internal-flash.img 4G Then i made it ext4 type by below…
Rookie
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Moving to upstart from busybox causing the kernel panic

We created simple linux file system using the busybox and it is working succesfully. But we tried to move from busybox init process to upstart init. But we are facing the kernel panic, when we are trying to do init=/sbin/init.upstart. What could be…
Srikanth Baratam
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