Hi, if I remember correctly, there is still no mechanism to fix eth0/eth1 for devices where those have been swapped from ar71xx to ath79.
In principle, this can be done with a relatively small piece of code (not
tested):
diff --git a/target/linux/ath79/base-files/etc/uci-defaults/05_eth_migration
b/target/linux/ath79/base-files/etc/uci-defaults/05_eth_migration
new file mode 100644
index 0000000000..d6b519d25a
--- /dev/null
+++ b/target/linux/ath79/base-files/etc/uci-defaults/05_eth_migration
@@ -0,0 +1,28 @@
+#!/bin/sh
+
+rename_all_eth() {
+ local before="$1"
+ local after="$2"
+
+ sed -i "s/$before/$after/" /etc/board.json
+ for e in $(ls /etc/config/* 2>/dev/null); do
+ sed -i "s/$before/$after/" "$e"
+ done
+ for e in $(ls /etc/sysctl.d/* 2>/dev/null); do
+ sed -i "s/$before/$after/" "$e"
+ done
+}
+
+case $(board_name) in
+glinet,gl-ar150|\
+tplink,archer-c58-v1|\
+tplink,archer-c59-v1|\
+tplink,archer-c60-v1|\
+tplink,archer-c60-v2)
+ rename_all_eth "eth0" "ethX"
+ rename_all_eth "eth1" "eth0"
+ rename_all_eth "ethX" "eth0"
+ ;;
+esac
+
+exit 0
However, this will obviously swap eth0/eth1 on EVERY upgrade, not just when
coming from ar71xx.
So, does anyone have an idea how to limit this to run only when updated from
ar71xx?
Despite, while having the abstraction of "rename_all_eth", I wonder whether it
would be possible and desirable to do all renames in one step:
sed -i -e 's/eth0/ethX/' -e 's/eth1/eth0/' -e 's/ethX/eth1/' $file
or even
sed -i -e 's/eth0/eth1/' -e 's/eth0/eth1/' $file
depending on how sed handles this internally. These options would mean less
flash writes (although this might not be too important here).
One might also need to add the 'g' modifier to sed to account for multiple ethX
found per line, e.g. 'eth0.1 eth0.2'.
I will test the latter cases when I have more time, just wanted to start the
discussion with this proposal.
Best
Adrian
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