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=== | ===chroot into a Raspberry Pi=== | ||
* kernel7.img - This is the kernel file for Raspberry Pi 2. Others use kernel.img | ====Mount sequence==== | ||
<pre> | |||
mount /dev/sdb3 /mnt | |||
mount /dev/sdb2 /mnt/boot | |||
mount /dev/sdb1 /mnt/boot/firmware | |||
mount -o bind /proc /mnt/proc | |||
mount -o bind /sys /mnt/sys | |||
mount -o bind /dev /mnt/dev | |||
mount -o bind /dev/pts /mnt/dev/pts | |||
cp /usr/bin/qemu-arm-static /mnt/usr/bin | |||
chroot /mnt | |||
</pre> | |||
====Doing stuff in chroot==== | |||
'''Example:''' Fixing a broken apt install | |||
<pre> | |||
dpkg --configure -a | |||
apt -f install | |||
exit | |||
</pre> | |||
====Unmount sequence==== | |||
<pre> | |||
umount /mnt/dev/pts | |||
umount /mnt/dev/ | |||
umount /mnt/sys | |||
umount /mnt/proc | |||
umount /mnt/boot/firmware | |||
umount /mnt/boot/ | |||
umount /mnt | |||
</pre> | |||
===Gotchas=== | |||
*kernel7.img - This is the kernel file for Raspberry Pi 2. Others use kernel.img | |||
<br /> | |||
===Serial Connection=== | |||
This is according to the UART debugging device that I have. Not a general reference. | |||
*Pin 6 = Black wire<span class="mx_EventTile_editButton" title="Options"></span> | |||
*[https://matrix.to/#/!YqnkMwmIIPPIDxHpkk:synapse.sds-ip.de/$1545373232932RFvCj:synapse.sds-ip.de?via=synapse.sds-ip.de <span class="mx_MessageTimestamp" title="Fri, Dec 21 2018 11:50:32"></span>]Pin 8 = TX of Rpi = RX of USB = Red<span class="mx_EventTile_editButton" title="Options"></span> | |||
*[https://matrix.to/#/!YqnkMwmIIPPIDxHpkk:synapse.sds-ip.de/$1545373249933GBVnG:synapse.sds-ip.de?via=synapse.sds-ip.de <span class="mx_MessageTimestamp" title="Fri, Dec 21 2018 11:50:49"></span>]Pin 10 = RX of Rpi = TX of USB = Yellow | |||
<br /> |
Latest revision as of 08:40, 10 January 2019
chroot into a Raspberry Pi
Mount sequence
mount /dev/sdb3 /mnt mount /dev/sdb2 /mnt/boot mount /dev/sdb1 /mnt/boot/firmware mount -o bind /proc /mnt/proc mount -o bind /sys /mnt/sys mount -o bind /dev /mnt/dev mount -o bind /dev/pts /mnt/dev/pts cp /usr/bin/qemu-arm-static /mnt/usr/bin chroot /mnt
Doing stuff in chroot
Example: Fixing a broken apt install
dpkg --configure -a apt -f install exit
Unmount sequence
umount /mnt/dev/pts umount /mnt/dev/ umount /mnt/sys umount /mnt/proc umount /mnt/boot/firmware umount /mnt/boot/ umount /mnt
Gotchas
- kernel7.img - This is the kernel file for Raspberry Pi 2. Others use kernel.img
Serial Connection
This is according to the UART debugging device that I have. Not a general reference.