diagnostics: switch log archive from zip to tar.gz#14530
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benhillis
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OneBlue,
Copilot,
craigloewen-msft,
jstarks and
justus-camp-microsoft
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Pull request overview
Switches WSL diagnostics log archival from Compress-Archive (.zip) to tar.exe (.tar.gz) to improve reliability for very large log sets.
Changes:
- Generate
.tar.gzarchives viatar.exe -czfinstead ofCompress-Archive - Add success/failure branching based on native exit code, including cleanup of partial archives
- Improve user-facing messaging when compression fails
OneBlue
reviewed
Mar 27, 2026
Some Windows SKUs may not have tar.exe available. Fall back to Compress-Archive (zip) when tar fails, so log collection still works in those environments. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
OneBlue
previously approved these changes
Apr 6, 2026
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@OneBlue - we need to merge this first: |
The new WTI release adds support for tar.gz log archives, matching the format change in collect-wsl-logs.ps1. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
OneBlue
approved these changes
Apr 23, 2026
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This change moves from using Compress-Archive to the inbox tar.exe. Compress-Archive can fail for very large files, so this approach will be more reliable.
This change also requires an update to WTI which I've published here: OneBlue/wti#5