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Message-Id: <20231208112302.92724-1-solutions@sophiabehling.com> Date: Fri, 8 Dec 2023 12:23:02 +0100 From: Sophia Behling <solutions@...hiabehling.com> To: Theodore Ts'o <tytso@....edu> Cc: linux-ext4@...r.kernel.org, Sophia Behling <solutions@...hiabehling.com> Subject: [PATCH] e2fsprogs: Document old requirement for block size with 'verity' With kernels predating 6.3 the block size had to equal the page size to use 'verity'; with kernel version 6.3 this limitation was removed. However, the current LTS and SLTS kernels (6.1) predate this. At the same time, 'verity' is currently a set-only feature in tune2fs. This combination can cause problems with small partitions (like /boot) or 64k kernels (as on ppc64le, aarch64). Hence, the added note informs users about the previous kernel limitation. Link: https://lore.kernel.org/lkml/Y%2FKLHT3zaA0QFhVJ@sol.localdomain/ Signed-off-by: Sophia Behling <solutions@...hiabehling.com> --- misc/tune2fs.8.in | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/misc/tune2fs.8.in b/misc/tune2fs.8.in index dcf108c1..b44660fd 100644 --- a/misc/tune2fs.8.in +++ b/misc/tune2fs.8.in @@ -706,7 +706,9 @@ full time, but subsequent e2fsck runs will take only a fraction of the original time, depending on how full the file system is. .TP .B verity -Enable support for verity protected files. +Enable support for verity protected files. Linux kernels older than version +6.3 require the file system block size to be equal to the kernel page size +to mount file systems with this feature. .B Tune2fs currently only supports setting this file system feature. .RE -- 2.39.2
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