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feat(ext4): enable inline_data on rootfs mkfs #2563

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Merged
ValentaTomas merged 2 commits into from
May 5, 2026
Merged

feat(ext4): enable inline_data on rootfs mkfs #2563

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e3360db
feat(ext4): enable inline_data on rootfs mkfs
ValentaTomas May 5, 2026
b48794e
docs(ext4): drop stale tar2ext4 reference in mkfs feature list
ValentaTomas May 5, 2026
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8 changes: 5 additions & 3 deletions packages/orchestrator/pkg/template/build/core/filesystem/ext4.go
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Original file line number Diff line number Diff line change
Expand Up @@ -42,9 +42,9 @@ func Make(ctx context.Context, rootfsPath string, sizeMb int64, blockSize int64)
cmd := exec.CommandContext(ctx,
"mkfs.ext4",
"-O", strings.Join([]string{
// Matches the final ext4 features used by tar2ext4 tool.
// But enables resize_inode, sparse_super (required for resize_inode),
// has_journal, and metadata_csum are kept as defaults.
// Explicit feature list for the rootfs. Defaults (resize_inode,
// sparse_super, has_journal, metadata_csum) are kept; we toggle
// only what we want to add or strip below.
"^64bit",
"^dir_index",
"^dir_nlink",
Expand All @@ -54,6 +54,8 @@ func Make(ctx context.Context, rootfsPath string, sizeMb int64, blockSize int64)
"filetype",
"flex_bg",
"huge_file",
// Pack file data <~160 B inside the inode to avoid a 4 KiB data block per tiny file.
"inline_data",
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"large_file",
"sparse_super2",
}, ","),
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