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tech:linux:ubuntu:start
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tech:linux:ubuntu:start [2022/03/04 13:50] rk4n3 |
tech:linux:ubuntu:start [2023/04/21 10:11] (current) rk4n3 |
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| * Select "Install OpenSSH Service" option | * Select "Install OpenSSH Service" option | ||
| * Perform updates | * Perform updates | ||
| - | * Extend root partition: | + | * Show root partition with ''lvs'', extend if not already larger than 28G //(assuming the default root VG/LV naming)//: |
| * ''lvextend -L +28G /dev/ubuntu-vg/ubuntu-lv'' | * ''lvextend -L +28G /dev/ubuntu-vg/ubuntu-lv'' | ||
| * ''resize2fs /dev/ubuntu-vg/ubuntu-lv'' | * ''resize2fs /dev/ubuntu-vg/ubuntu-lv'' | ||
| - | * Create LVM volume group on primary local storage: | + | * If more than one disk is present, other disk(s) can be set up for LVM |
| - | * ''pvcreate -M2 /dev/yourdiskdevice'' | + | * Create LVM volume group on primary local storage: |
| - | * ''vgcreate -s 64 yourvgname /dev/yourdiskdevice'' | + | * ''pvcreate -M2 /dev/yourdiskdevice'' |
| - | * Create home LV: | + | * ''vgcreate -s 64 yourvgname /dev/yourdiskdevice'' |
| - | * ''lvcreate -L 64G -n home yourvgname ; mkfs -t ext4 /dev/yourvgname/home'' | + | * Set up home LV, use either your default VG in case of single disk system, or new VG if other disk(s) available: |
| - | * Edit ''/etc/fstab'' and add entry to mount the new home LV on ''/home'' | + | * ''lvcreate -L 64G -n home yourvgname ; mkfs -t ext4 /dev/yourvgname/home'' |
| - | * Move user home directories to new volume, with something like this: \\ //**NOTE**: best done as root, all other logins logged out//<code bash>cd / | + | * Edit ''/etc/fstab'' and add entry to mount the new home LV on ''/home'' |
| + | * Move user home directories to new volume, with something like this: \\ //**NOTE**: best done as root, all other logins logged out//<code bash>cd / | ||
| mkdir home_ | mkdir home_ | ||
| mv ./home/* ./home_/ | mv ./home/* ./home_/ | ||
| Line 25: | Line 26: | ||
| * For wifi: wpasupplicant | * For wifi: wpasupplicant | ||
| * For audio: jack2 pulseaudio pulseaudio-module-jack qjackctl | * For audio: jack2 pulseaudio pulseaudio-module-jack qjackctl | ||
| - | * For X: xorg xinit xauth x11-xserver-utils xterm notion fvwm stalonetray | + | * For X: xorg xinit xauth x11-xserver-utils xterm notion fvwm stalonetray xscreensaver xscreensaver-gl-extra xscreensaver-data-extra |
| * tigervnc-viewer | * tigervnc-viewer | ||
| - | * Networking ''/etc/cloud/cloud.cfg.d/50-curtin-networking.cfg'' & ''/etc/netplan/50-cloud-init.yaml'': \\ //(Note: ''wifis'' section optional)//<code yaml>network: | + | * Networking ''/etc/netplan/whateveryourfilenameis.yaml'': \\ //(Note: ''wifis'' section optional)//<code yaml>network: |
| version: 2 | version: 2 | ||
| renderer: networkd | renderer: networkd | ||
| Line 49: | Line 50: | ||
| ===== Virtualization Server ===== | ===== Virtualization Server ===== | ||
| ==== Bridged Networking ==== | ==== Bridged Networking ==== | ||
| - | * In ''/etc/cloud/cloud.cfg.d/50-curtin-networking.cfg'' & ''/etc/netplan/50-cloud-init.yaml'':<code yaml> bridges: | + | * Packages: ''bridge-utils'' |
| + | * Populate ''/etc/sysctl.d/20-bridge.conf'' with:<code>net.bridge.bridge-nf-call-ip6tables=0 | ||
| + | net.bridge.bridge-nf-call-iptables=0 | ||
| + | net.bridge.bridge-nf-call-arptables=0</code> | ||
| + | * Populate ''/etc/udev/rules.d/99-bridge.rules'' with:<code>ACTION=="add",SUBSYSTEM=="module",KERNEL=="br_netfilter",RUN+="/sbin/sysctl -p /etc/sysctl.d/20-bridge.conf"</code> | ||
| + | * In ''/etc/netplan/whateveryourfilenameis.yaml'':<code yaml>network: | ||
| + | version: 2 | ||
| + | renderer: networkd | ||
| + | ethernets: | ||
| + | enp4s0: | ||
| + | dhcp4: false | ||
| + | dhcp6: false | ||
| + | bridges: | ||
| br0: | br0: | ||
| - | macaddress: DE:AD:BE:EF:00:16 | + | macaddress: DE:AD:BE:EF:10:01 |
| - | interfaces: [enp24s0] | + | interfaces: [enp4s0] |
| dhcp4: true | dhcp4: true | ||
| parameters: | parameters: | ||
| Line 121: | Line 134: | ||
| * Create filesystem directly on the physical device | * Create filesystem directly on the physical device | ||
| * Add entry to ''/etc/fstab'' to mount the filesystem at desired location | * Add entry to ''/etc/fstab'' to mount the filesystem at desired location | ||
| - | * Sample VM start-up script: <code bash> | + | * Sample VM start-up script: [[:tech:virt:start|startvm]] |
| - | #!/bin/bash | + | |
| - | VMNAME=baseline | + | |
| - | VNC="11" | + | |
| - | MAC0="DE:AD:BE:EF:00:11" | + | |
| - | MAC1= | + | |
| - | + | ||
| - | VMHOME=/var/lib/kvm | + | |
| - | CPUT=kvm64 | + | |
| - | CPUS=4 | + | |
| - | VMRAM=4096 | + | |
| - | XGM=headless | + | |
| - | #XGM= | + | |
| - | + | ||
| - | # Boot device - d=cdrom, c=disk | + | |
| - | BOOT="-boot c" | + | |
| - | #SIM="-cdrom ${VMHOME}/iso/CentOS-7-x86_64-Minimal-1810.iso" | + | |
| - | + | ||
| - | HD0="-drive file=vda,if=virtio" | + | |
| - | #HD1="-drive file=/dev/yourvgname/${VMNAME}home,if=virtio,index=1,media=disk,format=raw" | + | |
| - | HD1="" | + | |
| - | #HD2="-drive file=/dev/yourvgname/${VMNAME}docker,if=virtio,index=2,media=disk,format=raw" | + | |
| - | HD2="" | + | |
| - | + | ||
| - | NIC0="-netdev bridge,id=${VMNAME}eth0,br=br0 -device virtio-net-pci,netdev=${VMNAME}eth0,mac=${MAC0}" | + | |
| - | NIC1="" | + | |
| - | + | ||
| - | cd $VMHOME/$VMNAME | + | |
| - | if [ "$XGM" = "" ]; then | + | |
| - | qemu-kvm -machine pc,accel=kvm -name $VMNAME -cpu ${CPUT} -smp $CPUS -m $VMRAM $BOOT ${NIC0} ${NIC1} $HD0 $HD1 $HD2 $SIM | + | |
| - | elif [ "$XGM" = "headless" ]; then | + | |
| - | qemu-kvm -machine pc,accel=kvm -name $VMNAME -cpu ${CPUT} -smp $CPUS -m $VMRAM $BOOT -vnc localhost:${VNC} -daemonize ${NIC0} ${NIC1} $HD0 $HD1 $HD2 $SIM | + | |
| - | else | + | |
| - | echo "Unknown mode" | + | |
| - | fi | + | |
| - | </code> | + | |
| ==== Advanced/Other Virtualization ==== | ==== Advanced/Other Virtualization ==== | ||
| Line 195: | Line 173: | ||
| * vim-gtk | * vim-gtk | ||
| * openssh-server | * openssh-server | ||
| - | * ksh | ||
| * htop | * htop | ||
| * git | * git | ||
| Line 220: | Line 197: | ||
| ==== Disable PulseAudio auto-spawn ==== | ==== Disable PulseAudio auto-spawn ==== | ||
| - | If you want to run Jack for low-latency high-performance audio, you'll need to make sure that Jack can grab your audio interface directly, which means you won't want PulseAudio to grab it on startup. Disabling PulseAudio auto-spawn is most likely necessary, so you can start it manually after Jack is running: | + | If you want to run Jack for low-latency high-performance audio, you'll need to make sure that Jack can |
| + | grab your audio interface directly, which means you won't want PulseAudio to grab it on startup. | ||
| + | Disabling PulseAudio auto-spawn is most likely necessary, so you can start it manually after Jack is running: | ||
| + | * Stop already-running (auto-spawned) instance(s):<code>systemctl --user stop pulseaudio.socket | ||
| + | systemctl --user stop pulseaudio.service | ||
| + | sudo systemctl stop pulseaudio | ||
| + | sudo systemctl disable pulseaudio</code> | ||
| * Change in ''/etc/pulse/client.conf'': <code>autospawn = no | * Change in ''/etc/pulse/client.conf'': <code>autospawn = no | ||
| daemon-binary = /bin/true | daemon-binary = /bin/true | ||
| </code> | </code> | ||
| + | * Change in ''/etc/pulse/daemon.conf'': <code>daemonize = no</code> | ||
| * Rename startup file: <code bash>mv /etc/rc2.d/S50pulseaudio /etc/rc2.d/K50pulseaudio</code> | * Rename startup file: <code bash>mv /etc/rc2.d/S50pulseaudio /etc/rc2.d/K50pulseaudio</code> | ||
| + | * Completely disable any depedency service spawning: <code>sudo systemctl mask pulseaudio</code> | ||
| ==== Route PulseAudio through Jack ==== | ==== Route PulseAudio through Jack ==== | ||
| Line 417: | Line 402: | ||
| ====== Some Hardware Trivia ====== | ====== Some Hardware Trivia ====== | ||
| + | |||
| + | ==== Mouse lag on Raspberry Pi 4b ==== | ||
| + | In ''/boot/firmware/cmdline.txt'', add to end of line: | ||
| + | <code>usbhid.mousepoll=8</code> | ||
| ==== ACEPC W5 Pro: wifi ==== | ==== ACEPC W5 Pro: wifi ==== | ||
tech/linux/ubuntu/start.1646423418.txt.gz · Last modified: 2022/03/04 13:50 by rk4n3
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