debian_version: bullseye/sid
Error message
kernel: iwlwifi 0000:05:00.0: firmware: failed to load iwl-debug-yoyo.bin (-2)
temp solution:
vi /etc/modprobe.d/iwlwifi.conf
add following line:
options iwlwifi enable_ini=N
disabled this warning after reboot.
Reference link :
https://www.reddit.com/r/debian/comments/i60j1c/firmware_failed_to_load_iwldebugyoyobin_2_debian/
https://patchwork.kernel.org/project/linux-wireless/patch/20200625165210.14904-1-wsa@kernel.org/
Debian 11 bullseye KVM host installation with public bridge network
#install packages
#apt install --no-install-recommends qemu-system qemu-utils libvirt-clients libvirt-daemon-system bridge-utils
#adduser <youruser> libvirt
#create bridge interface
# ip link add br0 type bridge
## brctl addbr br0 (deprecated, use ip link instead!)
# vi /etc/network/interfaces
#add/modify following
......
# The primary network interface
#allow-hotplug eno1 # eno1 is my interface name ,change to yours
#iface eno1 inet dhcp
## kvm bridge
##
iface eno1 inet manual
auto br0
iface br0 inet dhcp
pre-up ip tuntap add dev tap0 mode tap user root
pre-up ip link set tap0 up
bridge_ports eno1 tap0
bridge_stp off
bridge_maxwait 0
bridge_fd 0
post-down ip link set tap0 down
post-down ip tuntap del dev tap0 mode tap
Now you can connect from remote virt-manager something like this:
qemu+ssh://root@<kvm host br0 IP >/system
“Half the money I spend on advertising is wasted; the trouble is I don't know which half.” John Wanamaker (1838-1922) “Half the money you spend on (Facebook) advertising is wasted; the trouble is that even you know which half, nothing you can do still. ” Biologist&Geek (2020)
2000年前後我在廣告公司工作，那時就常聽到在將來網路的世界裡，與John Wanamaker的時代不同的是，我們永遠可以知道那一半被浪費掉的廣告費，是哪一半，數位行銷可以克服傳統大眾媒體廣告行銷的先天缺陷，更精確的針對目標消費者傳遞廣告行銷訊息。 就跟1970年代開始時，小叮噹設定是21世紀的機器貓一樣，人們對於未來的新科技總是有不切實際的幻想，人類文明與科技的進步實際上並沒有這麼美好。Facebook 的精準廣告投放，效果還是跟百年前廣告行銷大師的名言一樣。 1920年代 John Wanamaker：「我知道我的廣告費有一半浪費了，麻煩的是我並不知道是哪一半。」 2020年代 宅男大叔：「你知道你的（臉書）廣告費有一半浪費了，麻煩的是就算你知道是哪一半，你依然無能為力。」 |
最近有點手癢，想換掉用了好幾年的TP-Link Archor C7 with Openwrt ，原因是這台的128MB RAM 目前常態使用上都吃掉 70%+ 。但是想想好像也沒啥不穩定或是龜速狀況，所以還是忍住，等到wifi6規格兩年後真的普及了再撿便宜吧。
在 ASUS Zenbook UX410UQK 筆電上 踩到 Nvidia 940MX 雷 ，在Ubuntu18.04上 suspend之後系統會掛掉。 目前的18.04.1依然無解。
只好改用最愛的 Debian Sid， kernel 4.17。 OK。
|
[Unit]
Description=Fix GPU after waking up from suspension
After=suspend.target
[Service]
User=root
Type=oneshot
# Sleep is because we want to ensure fastest wake up
ExecStart=/usr/bin/bash -c "sleep 2 && echo 1 > /sys/bus/pci/rescan"
TimeoutSec=0
[Install]
WantedBy=suspend.target
# Proprietary Broadcom (wl) ---> Synology RT-1900ac wl -i wlan0 assoclist # Proprietary Atheros (madwifi) ---> Synology RT-2600ac wlanconfig wlan0 list sta # MAC80211 iw dev wlan0 station dump # Universal iwinfo wlan0/wl0/ath0 assoclist
reference : https://wiki.openwrt.org/doc/faq/faq.wireless
curl ident.me
curl tnx.nl/ip
curl icanhazip.com
curl ipecho.net/plain
curl ip.appspot.com
