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| #!/bin/sh | |
| # this goes into /etc/initramfs-tools/scripts/init-premount/a_enable_wireless | |
| PREREQ="" | |
| prereqs() | |
| { | |
| echo "$PREREQ" | |
| } | |
| case $1 in | |
| prereqs) | |
| prereqs | |
| exit 0 | |
| ;; | |
| esac | |
| . /scripts/functions | |
| AUTH_LIMIT=30 | |
| INTERFACE="wlp5s0" | |
| alias WPACLI="/sbin/wpa_cli -p/tmp/wpa_supplicant -i$INTERFACE " | |
| log_begin_msg "Starting WLAN connection" | |
| /sbin/wpa_supplicant -i$INTERFACE -c/etc/wpa_supplicant.conf -P/run/initram-wpa_supplicant.pid -B -f /tmp/wpa_supplicant.log | |
| # Wait for AUTH_LIMIT seconds, then check the status | |
| limit=${AUTH_LIMIT} | |
| echo -n "Waiting for connection (max ${AUTH_LIMIT} seconds)" | |
| while [ $limit -ge 0 -a `WPACLI status | grep wpa_state` != "wpa_state=COMPLETED" ] | |
| do | |
| sleep 1 | |
| echo -n "." | |
| limit=`expr $limit - 1` | |
| done | |
| echo "" | |
| if [ `WPACLI status | grep wpa_state` != "wpa_state=COMPLETED" ]; then | |
| ONLINE=0 | |
| log_failure_msg "WLAN offline after timeout" | |
| panic | |
| else | |
| ONLINE=1 | |
| log_success_msg "WLAN online" | |
| fi | |
| configure_networking |
| # !/bin/sh | |
| # This goes into /etc/initramfs-tools/hooks/enable-wireless | |
| set -e | |
| PREREQ="" | |
| prereqs() | |
| { | |
| echo "${PREREQ}" | |
| } | |
| case "${1}" in | |
| prereqs) | |
| prereqs | |
| exit 0 | |
| ;; | |
| esac | |
| . /usr/share/initramfs-tools/hook-functions | |
| # CHANGE HERE for your correct modules. | |
| manual_add_modules iwlwifi iwlmvm | |
| copy_exec /sbin/wpa_supplicant | |
| copy_exec /sbin/wpa_cli | |
| copy_file config /etc/initramfs-tools/wpa_supplicant.conf /etc/wpa_supplicant.conf |
| # This is run on the shell | |
| chmod +x /etc/initramfs-tools/scripts/local-bottom/kill_wireless | |
| chmod +x /etc/initramfs-tools/scripts/init-premount/a_enable_wireless | |
| chmod +x /etc/initramfs-tools/hooks/enable-wireless | |
| update-initramfs -k all -u | |
| update-grub |
| #!/bin/sh | |
| # this goes into /etc/initramfs-tools/scripts/local-bottom/kill_wireless | |
| PREREQ="" | |
| prereqs() | |
| { | |
| echo "$PREREQ" | |
| } | |
| case $1 in | |
| prereqs) | |
| prereqs | |
| exit 0 | |
| ;; | |
| esac | |
| echo "Killing wpa_supplicant so the system takes over later." | |
| kill `cat /run/initram-wpa_supplicant.pid` |
| # sample /etc/initramfs-tools/wpa_supplicant.conf | |
| # note that this is independent of the system /etc/wpa_supplicant.conf (if any) | |
| # only add the network you need at boot time. **And keep the ctrl_interface** !! | |
| ctrl_interface=/tmp/wpa_supplicant | |
| network={ | |
| ssid="MyNetwork" | |
| scan_ssid=1 | |
| psk="network passphrase" | |
| key_mgmt=WPA-PSK | |
| } |
Ok, so I found your blog entry and followed all of the steps. It works!
There are two extra things to note:
-
I think it is better to first build the initramfs and figure out the exact files needed on boot for the wi-fi interface, then proceed with the rest of the steps (I also have a pi zero w and no mini HDMI converter, so for anyone in the same situation, this is strongly advised)
-
The resized root partition won't work in another raspberry pi or resized SD card unless you get to boot there from a second USB stick, chroot into the installation with LUKS and rebuild the initramfs. "Cross-initramfs-building" is NOT an option. I learned this the very hard way, that is, time.
- The resized root partition won't work in another raspberry pi or resized SD card unless you get to boot there from a second USB stick, chroot into the installation with LUKS and rebuild the initramfs. "Cross-initramfs-building" is NOT an option. I learned this the very hard way, that is, time.
It worked well for me, I just had to use QEMU.
It worked well for me, I just had to use QEMU.
I tried to fit a 64gb installation into a 16 gb card (both rsync and resize/dd way). I made sure to use the same UUIDs for the partitions. SSH works on boot, but after entering the passphrase this follows:
Cannot initialize device-mapper. Is dm_mod kernel module loaded?
The same applied to the Pi400. Since I have another installation running on the Pi400, after chrooting and rebuilding it worked there, but rebuilding for the Pi Zero W failed.
Thanks for this scripts.
To add autodetection of wlan interface name in a_enable_wireless.sh
change
INTERFACE="wlp5s0"
to
INTERFACE=`ip link | awk '{if(substr($2,1,1) =="w") {gsub(":","",$2); print($2); exit;}}'`
it finds first interface by mask "w*",
and then add check if INTERFACE is zero string and skip wpa_supplicant.
if ! [ -z "$INTERFACE" ]; then
# wpa supllicant stuff
fi
configure_networking
Hello, I'm having a little issue. I've tried the above (thanks for the scripts!) but I'm now stuck and not able to boot my server.
I think the connection is failing for some reason except that I never end up again in a command line to unlock my disk manually from the laptop (without using wifi).
Any idea how I can solve this?
Hello, I'm having a little issue. I've tried the above (thanks for the scripts!) but I'm now stuck and not able to boot my server.
You are welcome.
I am not using Debian on this scenarios anymore so I cannot be of much help but:
a) I think there have been some considerable changes to initramfs/dracut that could make all this not very usefull
b) The dropbear packages (dropbear-initramfs), if memory serves well, had some scripts on line with what is proposed here which may be useful.
c) The mandos-client package also had some sample scripts that could help you
Oh, and check the comments posted here by some users giving updates! like @morfikov & @leksmut (Thank you all for those comments!)
@morfikov How exactly did you delay it? I tried adding
sleep 60right before calling/sbin/wpa_supplicanthere, but am unsuccessful. If you could share your full configuration, that would be awesome. I am trying to set this up in a RaspPi 400