From: Max Gautier <mg@max.gautier.name>
To: Milan Broz <gmazyland@gmail.com>
Cc: cryptsetup@lists.linux.dev, Mikulas Patocka <mpatocka@redhat.com>
Subject: Re: dm-integrity: estimate the size needed for separate integrity device
Date: Mon, 8 Jun 2026 09:05:27 +0200 [thread overview]
Message-ID: <aiZpt6MeB-QmmsfB@framework> (raw)
In-Reply-To: <20e7ea6e-1583-4274-a243-05e52f206a18@gmail.com>
On Sun, Jun 07, 2026 at 03:08:41PM +0200, Milan Broz wrote:
> ...
> Actually, integritysetup should check device size before activation...
I don't know about activation, but at least format does some kind of
check (delegated to the kernel, maybe ?): I used trial and errors to
confirm the calculation (running `integritysetup format` resizing the
metadata device between each attempts) and by resizing below a certain
threshold, I obtained every time a error.
I did not write it down (the error message) but it didn't hint to the
size of the metadata device at all, it was only clear because I only
changed the size between two attempts.
--
Max Gautier
prev parent reply other threads:[~2026-06-08 7:05 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-01 7:50 dm-integrity: estimate the size needed for separate integrity device Max Gautier
2026-06-07 13:08 ` Milan Broz
2026-06-08 7:05 ` Max Gautier [this message]
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