Linux/RaspberryPi: Difference between revisions
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===Serial Connection=== | |||
This is according to the UART debugging device that I have. Not a general reference. | 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> | *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 | *[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 | |||
* [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 | |||
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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.
