docs: mention nullfs

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Add a section about nullfs and how it enables pivot_root() to work.

Link: https://patch.msgid.link/20260112-work-immutable-rootfs-v2-4-88dd1c34a204@kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>

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Christian Brauner 2026-01-12 16:47:11 +01:00

parent 576ee5dfd4

commit 649cb20b7a

1 changed files with 23 additions and 9 deletions

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Documentation/filesystems/ramfs-rootfs-initramfs.rst

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