Title: SteamOS 3.9.5 – Boot loop and first-time setup reset on Lenovo Legion Go 2
还没有人认领这个 Issue。
评估
- 难度
- 5/5
- 预计耗时
- 一周以上
- 新手友好度
- 35/100
- Issue 类型
- 缺陷
- 描述清晰度
- 基本清楚
- 活跃度
- 活跃
- 技术栈
- linux
调研方向
Start by examining SteamOS first-run state persistence, A/B boot recovery, and display session transitions on the Lenovo Legion Go 2. The report names registry.vdf and the Rootfs A/B partitions, but does not identify source files, tests, or a confirmed root cause. Done means explaining or reproducing the reset, boot loop, or mode-switch freeze and identifying a reliable fix.
由索引模型根据 Issue 内容生成。
描述
Device: Lenovo Legion Go 2 (Z2 Extreme, 32 GB RAM)
OS: SteamOS 3.9.5, installed on internal NVMe
Date: November 5, 2026
Bug description
SteamOS unexpectedly became unbootable after normal use, without any system reinstallation or intentional configuration changes.
Sequence of events:
- SteamOS was working normally, including Desktop Mode.
- An external display detection issue occurred. A reboot initially resolved it.
- After further normal use and shutdown, SteamOS failed to boot correctly.
- Subsequent boots repeatedly displayed the Lenovo Legion logo or restarted the first-time setup process, despite the system already being configured.
- Switching between Desktop and Gaming Mode with an external display also produced a freeze during subsequent testing.
Technical findings
- Internal SSD: "/dev/nvme0n1"
- Rootfs A: "/dev/nvme0n1p4" — SteamOS 3.9.5
- Rootfs B: "/dev/nvme0n1p5" — SteamOS 3.8.28
- Shared user data: "/dev/nvme0n1p8"
- Steam's "registry.vdf" was unexpectedly reduced to approximately 366 bytes and lacked the "CompletedOOBEStage1" configuration entry.
- An existing backup contained valid "CompletedOOBEStage1=1" and "CompletedOOBE=1" entries.
Recovery
Using a SteamOS recovery USB, we entered the installed system through "steamos-chroot", restored the previous "registry.vdf" and explicitly selected rootfs A for booting.
SteamOS eventually booted successfully without reinstalling or losing user data. Recovery was not consistently immediate, suggesting the configuration reset may not be the only issue.
Expected behavior
SteamOS should preserve its completed initial setup state, recover reliably after shutdown, and switch between Desktop/Gaming Mode without freezing or entering a boot loop.
Suspected issue
Possible corruption or unexpected reset of Steam's first-run configuration, potentially associated with external display handling or session transitions.
The root cause has not been confirmed.
Please investigate SteamOS first-run state persistence, A/B boot recovery and external display session transitions on the Legion Go 2.
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