如何让PowerShell等待AWS ENA驱动安装脚本完成后再执行重启？

核心问题根源 #

直接调用.\install.ps1后立刻执行Restart-Computer，本质是因为install.ps1内部启动了异步运行的驱动安装进程，脚本自身提前返回，导致重启命令在驱动实际安装完成前就触发，进而引发实例重启卡顿。

具体解决方案 #

1. 强制等待install.ps1完全执行 #

用Start-Process命令调用脚本并强制等待其结束，替代直接调用的方式，确保脚本逻辑走完：

cd \Temp\AwsEnaNetworkDriver

# 启动install.ps1并等待其执行完毕
Start-Process powershell.exe -ArgumentList "-File .\install.ps1" -Wait -NoNewWindow

2. 验证驱动安装状态（推荐添加） #

在脚本执行结束后，额外校验ENA驱动的实际状态，避免脚本执行完成但驱动未生效就重启：

# 检查ENA驱动服务是否正常运行
$enaService = Get-Service -Name "AwsEnaNetworkDriver" -ErrorAction SilentlyContinue
while ($null -eq $enaService -or $enaService.Status -ne "Running") {
    Start-Sleep -Seconds 5
    $enaService = Get-Service -Name "AwsEnaNetworkDriver" -ErrorAction SilentlyContinue
}

# 可选：校验驱动版本（替换为你的目标版本）
$targetVersion = "2.2.10"
$currentVersion = (Get-WmiObject Win32_PnPSignedDriver | Where-Object {$_.DeviceName -like "*Elastic Network Adapter*"}).DriverVersion
while ($currentVersion -ne $targetVersion) {
    Start-Sleep -Seconds 5
    $currentVersion = (Get-WmiObject Win32_PnPSignedDriver | Where-Object {$_.DeviceName -like "*Elastic Network Adapter*"}).DriverVersion
}

3. 等待网络恢复 #

由于安装过程会出现15-20秒的网络离线，可添加网络连通性检查，确保网络恢复后再重启：

# 等待默认网关连通（验证网络恢复）
$defaultGateway = (Get-NetRoute -DestinationPrefix 0.0.0.0/0).NextHop
while (-not (Test-Connection -ComputerName $defaultGateway -Count 1 -Quiet -ErrorAction SilentlyContinue)) {
    Start-Sleep -Seconds 3
}

完整脚本示例 #

cd \Temp\AwsEnaNetworkDriver

# 等待install.ps1执行完成
Start-Process powershell.exe -ArgumentList "-File .\install.ps1" -Wait -NoNewWindow

# 等待ENA服务启动
$enaService = Get-Service -Name "AwsEnaNetworkDriver" -ErrorAction SilentlyContinue
while ($null -eq $enaService -or $enaService.Status -ne "Running") {
    Start-Sleep -Seconds 5
    $enaService = Get-Service -Name "AwsEnaNetworkDriver" -ErrorAction SilentlyContinue
}

# 等待网络恢复
$defaultGateway = (Get-NetRoute -DestinationPrefix 0.0.0.0/0).NextHop
while (-not (Test-Connection -ComputerName $defaultGateway -Count 1 -Quiet -ErrorAction SilentlyContinue)) {
    Start-Sleep -Seconds 3
}

# 执行重启
Restart-Computer -Force

内容的提问来源于stack exchange，提问作者prof x