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shkim
Asked: 2019-10-30 16:36:15 +0800 CST

Command run in ARM rootfilesystem

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i'm on developing ARM board (beaglebone black).

when i was create bootimg image, i just copied the ARM rootfilesystem to booting disk. but, I want to run Linux commands as if it were a host PC.

How can i run linux command like install package in rootfilesystem ? (not host PC's rootfilesystem. run command in Rootfilesystem to be copied later from the host PC to the ARM target board. )

is there any ARM environment emulation tool in linux ?

command-line virtualization arm beagleboard

1 Answers

  1. Best Answer

    You can mount the AM335x rootfilesystem and chroot to it with something like:

    # install QEMU ARM static to the host system
sudo apt-get install qemu-user-static

# mount rootfs
sudo kpartx -a -v rootfs.img
sudo mount /dev/mapper/loop0p2 /mnt

# copy qemu-arm-static executable
sudo cp /usr/bin/qemu-arm-static /mnt/usr/bin/
sudo cp /etc/resolv.conf /mnt/etc/resolv.conf

# prepare for chrooting
cd /mnt
sudo mount --bind /dev dev/
sudo mount --bind /sys sys/
sudo mount --bind /proc proc/
sudo mount --bind /dev/pts dev/pts
sudo rm /mnt/etc/ld.so.preload

# chroot to ARM filesystem
sudo chroot .

# do the stuff inside rootfs
apt-get update
apt-get install mc

    I have tested this method with Raspberry Pi rootfs.

    References:

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