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real-root-dev

file: /proc/sys/kernel/real-root-dev
variable: kernel.real-root-dev
Official reference

See Documentation/admin-guide/initrd.rst.

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Last update: 2026-03-30 12:00:00 UTC
Parsed kernel version 6.18 from git

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Kernel documentation © the Linux kernel authors.
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Updated by Ilya Vasilyev aka Nadz Goldman from Arviol ( vStack dep. ), ITG