Tips to run on Linux in Windows WSL2

Linux on WSL2.md

Tips to run on Linux in Windows WSL2

WSL version

• https://twitter.com/lyrical_dolphin/status/1598498134338207744
  • Please be aware WSL version to run from the task scheduler

CUDA setup

• Please read the blog article

Memory setting

C:\Users\YOUR_ID\.wslconfig

[wsl2]
memory=12GB
swap=0

Port open setup

• Please read the blog article of setting instruction
  • Please replace <WINDOWS_MACHINE_IP_ADFRESS> to the real static IP address

1. Save the following script as start-wsl2.bat

   wsl -u root -- service cron restart
   
   FOR /F "usebackq" %%i in (`wsl -d Ubuntu exec hostname -I`) do set IP=%%i
   
   netsh interface portproxy delete v4tov4 listenport=22
   
   rem Mount disks
   wsl --mount \\.\PHYSICALDRIVE1 --bare
    
   rem ssh
   netsh interface portproxy add v4tov4 listenport=22 connectaddress=%IP% connectport=22 listenaddress=<WINDOWS_MACHINE_IP_ADFRESS>
   
   rem App port
   netsh interface portproxy add v4tov4 listenport=8000 connectaddress=%IP% connectport=8000 listenaddress=<WINDOWS_MACHINE_IP_ADFRESS>

2. Add the task as Administrator to run the script to Windows task scheduler at Windows start

3. If you restart WSL2 manually, run wsl --shutdown in the command prompt as Administrator and run the script as Administrator

4. Port open

   %%; https://zenn.dev/solufa/articles/accessing-wsl2-from-mobile
   
   $ports = @(2000, 8000) # Webアプリで使うポートを配列で指定
   $fwRuleName = "WSL 2 Firewall Unlock"
   $wsl2Address = wsl -e hostname -I | ForEach-Object { $_.trim() }
   
   New-NetFireWallRule -DisplayName $fwRuleName -Direction Inbound -LocalPort $ports -Action Allow -Protocol TCP
   
   for ($i = 0; $i -lt $ports.length; $i++) {
     $port = $ports[$i]
     netsh interface portproxy add v4tov4 listenport=$port listenaddress=* connectport=$port connectaddress=$wsl2Address
   }
   

Mount external disk

1. On windows

   $ wmic diskdrive get deviceID,Caption
   $ wsl --mount \\.\PHYSICALDRIVE0 --bare

2. On WSL console

   $ lsblk
   $ sudo mkdir -p /mnt/disk/ssd0
   $ vi /etc/fstab
   /dev/sdb1       /mnt/disk/ssd0  ext4    defaults,user,nofail,noauto     0       0
   $ sudo mount /mnt/disk/ssd0

3. Add the following line to .zshenv (or .bashenv) to mount automatically

   mount | grep -q '/mnt/disk/ssd0 ' || mount /mnt/disk/ssd0 2>/dev/null

• https://touch-sp.hatenablog.com/entry/2021/12/23/001906

Make WSL disk space compact

Open Powershell by Admin

$ wsl --shutdown
$ ls $HOME\AppData\Local\Packages\CanonicalGroupLimited.UbuntuonWindows_●●●●\LocalState\ext4.vhdx
$ diskpart
    select vdisk file=C:\Users\●●●●\AppData\Local\Packages\CanonicalGroupLimited.UbuntuonWindows_●●●●\LocalState\ext4.vhdx
    attach vdisk readonly
    compact vdisk
    detach vdisk
    exit

Initialize

$ sudo parted /dev/sdb
parted) mkpart
Partition name?  []? DISK_NAME_HERE
File system type?  [ext2]? ext4
Start? 0%
End? 100%

$ sudo  mkfs -t ext4 /dev/sdb1

Auto mount

$ sudo visudo
●●● ALL=NOPASSWD: /usr/bin/apt, /usr/bin/mount
$ mount /mnt/disk/ssd0
$ echo 'mount /mnt/disk/ssd0 2>/dev/null' >> 

hdparm

$ sudo vi /etc/hdparm.conf
/dev/sdb {
    spindown_time = 120
}