38 lines
1.3 KiB
Bash
Executable File
38 lines
1.3 KiB
Bash
Executable File
#!/bin/bash
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# Download the Ubuntu live-server ISO into the cache and verify it against
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# the release's SHA256SUMS. Idempotent: a verified ISO is not re-fetched.
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#
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# Usage: tests/vm/fetch-iso.sh
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# Env: PXETEST_CACHE, UBUNTU_ISO_NAME (default ubuntu-24.04.5-live-server-amd64.iso)
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source "$(dirname "$0")/common.sh"
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mkdir -p "$PXETEST_CACHE"
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cd "$PXETEST_CACHE"
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log "fetching $UBUNTU_RELEASE_URL/SHA256SUMS"
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curl -fsSL -m 60 -o SHA256SUMS.new "$UBUNTU_RELEASE_URL/SHA256SUMS" \
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|| die "could not download SHA256SUMS (proxy? offline?)"
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mv SHA256SUMS.new SHA256SUMS
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if ! grep -q "[ *]$UBUNTU_ISO_NAME\$" SHA256SUMS; then
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log "available live-server ISOs:"
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grep live-server SHA256SUMS | sed 's/^/ /'
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die "$UBUNTU_ISO_NAME is not in SHA256SUMS; set UBUNTU_ISO_NAME"
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fi
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verify() { grep "[ *]$UBUNTU_ISO_NAME\$" SHA256SUMS | sha256sum -c --status; }
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if [ -f "$UBUNTU_ISO_NAME" ] && verify; then
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log "ISO already present and verified: $UBUNTU_ISO"
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exit 0
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fi
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log "downloading $UBUNTU_RELEASE_URL/$UBUNTU_ISO_NAME (resumable)"
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curl -fsSL -C - --retry 3 -o "$UBUNTU_ISO_NAME" "$UBUNTU_RELEASE_URL/$UBUNTU_ISO_NAME" \
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|| die "ISO download failed (proxy? offline?)"
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if ! verify; then
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rm -f "$UBUNTU_ISO_NAME"
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die "SHA256 mismatch for $UBUNTU_ISO_NAME (deleted; run again)"
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fi
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log "ISO verified: $UBUNTU_ISO"
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