953d87f59d
- Update all 24.04.2 references to 24.04.4 (ISO name, URLs, SHA256, docs) - Add format-persistence.sh to bootable/linux-setup/ (from working E: drive) - Rewrite website guide.html Linux tutorial: Linux Mint + Rufus → Ventoy + Ubuntu Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
111 lines
4.5 KiB
PowerShell
111 lines
4.5 KiB
PowerShell
# ============================================================
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# U-Claw Bootable USB - Step 2: Download Ubuntu 24.04 ISO
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# Downloads and verifies Ubuntu desktop ISO
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# ============================================================
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$ErrorActionPreference = "Stop"
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Write-Host ""
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Write-Host "============================================" -ForegroundColor Cyan
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Write-Host " U-Claw Bootable USB - Step 2: Ubuntu ISO" -ForegroundColor Cyan
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Write-Host "============================================" -ForegroundColor Cyan
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Write-Host ""
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# ── Config ──
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$ISOName = "ubuntu-24.04.4-desktop-amd64.iso"
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$SHA256Expected = "3a4c9877b483ab46d7c3fbe165a0db275e1ae3cfe56a5657e5a47c2f99a99d1e"
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$CacheDir = Join-Path $PSScriptRoot ".download-cache"
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$ISOPath = Join-Path $CacheDir $ISOName
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# Mirror list (China mirrors first)
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$Mirrors = @(
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"https://mirrors.tuna.tsinghua.edu.cn/ubuntu-releases/24.04.4/$ISOName",
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"https://mirrors.aliyun.com/ubuntu-releases/24.04.4/$ISOName",
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"https://mirrors.ustc.edu.cn/ubuntu-releases/24.04.4/$ISOName",
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"https://releases.ubuntu.com/24.04.4/$ISOName"
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)
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# ── Create cache directory ──
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if (-not (Test-Path $CacheDir)) {
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New-Item -ItemType Directory -Path $CacheDir -Force | Out-Null
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}
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# ── Check existing download ──
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if (Test-Path $ISOPath) {
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Write-Host "[INFO] ISO file found in cache. Verifying SHA256..." -ForegroundColor Yellow
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$hash = (Get-FileHash -Path $ISOPath -Algorithm SHA256).Hash.ToLower()
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if ($hash -eq $SHA256Expected) {
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Write-Host "[OK] SHA256 verified. ISO is valid." -ForegroundColor Green
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Write-Host " Path: $ISOPath" -ForegroundColor White
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Write-Host ""
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Write-Host " Next: Run .\3-create-persistence.ps1" -ForegroundColor Cyan
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Read-Host "Press Enter to continue"
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exit 0
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} else {
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Write-Host "[WARN] SHA256 mismatch! Re-downloading..." -ForegroundColor Red
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Write-Host " Expected: $SHA256Expected" -ForegroundColor Gray
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Write-Host " Got: $hash" -ForegroundColor Gray
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Remove-Item -Path $ISOPath -Force
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}
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}
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# ── Download ISO ──
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Write-Host "[INFO] Downloading Ubuntu 24.04.4 Desktop (~5.8 GB)..." -ForegroundColor Yellow
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Write-Host " This will take a while depending on your connection." -ForegroundColor Gray
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Write-Host ""
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[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
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$downloaded = $false
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foreach ($mirror in $Mirrors) {
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$mirrorHost = ([System.Uri]$mirror).Host
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Write-Host " Trying $mirrorHost ..." -ForegroundColor Gray
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try {
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$ProgressPreference = 'Continue'
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Invoke-WebRequest -Uri $mirror -OutFile $ISOPath -UseBasicParsing
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$downloaded = $true
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Write-Host "[OK] Downloaded from $mirrorHost" -ForegroundColor Green
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break
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} catch {
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Write-Host " Failed: $($_.Exception.Message)" -ForegroundColor DarkGray
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if (Test-Path $ISOPath) { Remove-Item -Path $ISOPath -Force }
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continue
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}
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}
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if (-not $downloaded) {
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Write-Host ""
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Write-Host "[ERROR] All download mirrors failed." -ForegroundColor Red
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Write-Host " Please download Ubuntu 24.04.4 Desktop ISO manually:" -ForegroundColor Yellow
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Write-Host " https://releases.ubuntu.com/24.04.4/" -ForegroundColor Yellow
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Write-Host " Save it as: $ISOPath" -ForegroundColor Yellow
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Read-Host "Press Enter to exit"
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exit 1
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}
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# ── Verify SHA256 ──
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Write-Host "[INFO] Verifying SHA256 checksum..." -ForegroundColor Yellow
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$hash = (Get-FileHash -Path $ISOPath -Algorithm SHA256).Hash.ToLower()
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if ($hash -eq $SHA256Expected) {
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Write-Host "[OK] SHA256 verified! ISO is authentic." -ForegroundColor Green
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} else {
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Write-Host "[WARN] SHA256 mismatch!" -ForegroundColor Red
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Write-Host " Expected: $SHA256Expected" -ForegroundColor Gray
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Write-Host " Got: $hash" -ForegroundColor Gray
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Write-Host ""
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Write-Host " The ISO may be corrupted or a newer version." -ForegroundColor Yellow
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Write-Host " You can continue at your own risk, or re-download." -ForegroundColor Yellow
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$cont = Read-Host "Continue anyway? (y/N)"
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if ($cont -ne "y" -and $cont -ne "Y") {
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Remove-Item -Path $ISOPath -Force
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exit 1
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}
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}
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Write-Host ""
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Write-Host "[OK] Step 2 complete! ISO saved to:" -ForegroundColor Green
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Write-Host " $ISOPath" -ForegroundColor White
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Write-Host ""
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Write-Host " Next: Run .\3-create-persistence.ps1" -ForegroundColor Cyan
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Read-Host "Press Enter to continue"
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