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feature btrfs

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Alexey Gladkov edited this page Apr 27, 2026 · 2 revisions

Feature: btrfs

Feature adds btrfs to initramfs.

Multi-device support

For multi-device btrfs filesystems (RAID), the feature waits for all component devices to appear before allowing mount. If some devices are missing after the timeout, the degraded mount option is added automatically so the filesystem can be mounted with available devices.

Boot parameters

  • btrfs-member-delay=<SECS> - determines the number of seconds to wait after the last btrfs member device appears before mounting in degraded mode (default: 10 seconds). If this value is zero, it means disabling the degraded mount support.

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