From: Peter Korsgaard <peter@korsgaard.com>
To: Fiona Klute <fiona.klute@gmx.de>
Cc: Fiona Klute via buildroot <buildroot@buildroot.org>,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Subject: Re: [Buildroot] [PATCH 1/1] package/squashfs: bump to version 4.7.5
Date: Fri, 06 Mar 2026 09:07:08 +0100 [thread overview]
Message-ID: <87v7f9gz4j.fsf@dell.be.48ers.dk> (raw)
In-Reply-To: <5c104076-e333-42a6-b278-fea3ec139fb9@gmx.de> (Fiona Klute's message of "Fri, 6 Mar 2026 01:49:08 +0100")
>>>>> "Fiona" == Fiona Klute <fiona.klute@gmx.de> writes:
Hi,
>> I see that there are now some options for reproducible file systems.
>> Maybe we should use those in fs/squashfs/ if BR2_REPRODUCIBLE is
>> enabled?
> I haven't looked into BR2_REPRODUCIBLE too deeply yet, but it sets
> SOURCE_DATE_EPOCH, so according to the squashfs-tools documentation we
> should be good implicitly [1]:
>> As an alternative to the above command line options, you can set the environment
>> variable SOURCE_DATE_EPOCH to a time value.
>> This value will be used to set the mkfs time. Also any file
>> timestamps which
>> are after SOURCE_DATE_EPOCH will be clamped to SOURCE_DATE_EPOCH.
> I'd be curious to hear about test results. :-)
Yes, looks good. With:
BR2_aarch64=y
BR2_TOOLCHAIN_EXTERNAL=y
BR2_TOOLCHAIN_EXTERNAL_BOOTLIN=y
BR2_TOOLCHAIN_EXTERNAL_BOOTLIN_AARCH64_GLIBC_STABLE=y
BR2_REPRODUCIBLE=y
BR2_TARGET_ROOTFS_SQUASHFS=y
Which does pull in a /usr/lib/libstdc++.so.6.0.33-gdb.py that leaks a
host path, but that is an unrelated issue. With that file removed I get:
md5sum output-test*/images/rootfs.* | sort
5fd5fdb2abb8b29bb0a008ff3c611842 output-test1/images/rootfs.squashfs
5fd5fdb2abb8b29bb0a008ff3c611842 output-test2/images/rootfs.squashfs
9e4f0f2f32b1cfe3de3e68dd26786fcf output-test1/images/rootfs.tar
9e4f0f2f32b1cfe3de3e68dd26786fcf output-test2/images/rootfs.tar
E.G. identical.
--
Bye, Peter Korsgaard
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prev parent reply other threads:[~2026-03-06 8:07 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-05 0:29 [Buildroot] [PATCH 1/1] package/squashfs: bump to version 4.7.5 Fiona Klute via buildroot
2026-03-05 11:23 ` Peter Korsgaard
2026-03-06 0:49 ` Fiona Klute via buildroot
2026-03-06 8:07 ` Peter Korsgaard [this message]
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