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* mapping with --readonly option
@ 2022-11-05 10:15 Fourhundred Thecat
  2022-11-06 22:15 ` Arno Wagner
  0 siblings, 1 reply; 3+ messages in thread
From: Fourhundred Thecat @ 2022-11-05 10:15 UTC (permalink / raw)
  To: cryptsetup


if I use the --readonly option to create a mapping, and mount it as my
root partition, can the mapping later be changed during runtime to
read-write ?

Or, in other words, if mapping was created as readonly, can I be sure
that it cannot be remapped to read-write while being mounted as my root

Ofcourse mapping can be closed and opened again, but I am asking here
specifically for mapping that is mounted as root filesystem, which
cannot be unmounted at runtime (as far as I know)

I am interested whether I can use readonly mapping as sort of security
feature to enforce read-only filesystem?

thank you

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2022-11-07  3:00 UTC | newest]

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2022-11-05 10:15 mapping with --readonly option Fourhundred Thecat
2022-11-06 22:15 ` Arno Wagner
2022-11-06 22:29   ` Christoph Anton Mitterer

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