We've not yet moved to U20 LTS due to block on the upgrade path - but I note that after downloading and testing the same on U20 20.04 TLS, the behaviour of uuidgen has changed
uuidgen --namespace @dns --name 'foo' -m 3f46ae03-c654-36b0-a55d-cd0aa042c9f2 So clearly this has changed between the V 2.34 on U20 and V 2.31.1 on U18. This is all rather unfortunately as these are supposed to be deterministic. Should I expect that the behaviour of uuidgen to change on the older LTS versions? Or does the LTS status indicate that this different version wouldn't be backported? As long I know how/when these uuid's are generated I can work around it (or just use sha1 versions). Thanks! -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to util-linux in Ubuntu. https://bugs.launchpad.net/bugs/1892516 Title: uuidgen possible problem with v3 uuids Status in util-linux package in Ubuntu: New Bug description: Generating a version 3 uuid on Ubuntu appears to be producing inconsistent output compared to online checkers and versions of this tool compiled on different OSs. E.g. On U18.04.5 uuidgen --namespace @dns --name 'foo' -m (version 3 using md5) 3f46ae03-c654-36b0-855d-cd0aa042c9f2 uuidgen --namespace @dns --name 'foo' -s (version 5 with sha1) b84ed8ed-a7b1-502f-83f6-90132e68adef On Gentoo, uuidgen --namespace @dns --name 'foo' -m 3f46ae03-c654-36b0-a55d-cd0aa042c9f2 (note a55d rather than 855d) uuidgen --namespace @dns --name 'foo' -s b84ed8ed-a7b1-502f-83f6-90132e68adef On raspbian uuidgen --namespace @dns --name 'foo' -m 3f46ae03-c654-36b0-a55d-cd0aa042c9f2 (note a55d same as on gentoo) uuidgen --namespace @dns --name 'foo' -s b84ed8ed-a7b1-502f-83f6-90132e68adef Looking at this https://github.com/karelzak/util-linux/issues/683 gave me pause to see if I could replicate this similar problem On Ubuntu, using the python library I get python -c "import uuid ; print(uuid.uuid3(uuid.UUID('6ba7b810-9dad-11d1-80b4-00c04fd430c8'), 'foo'))" 3f46ae03-c654-36b0-a55d-cd0aa042c9f2 The same result is returned on raspbian and Gentoo. This makes me wonder if there's a problem with the uuidgen tool, as python is giving me consistent results on all three OS's and agrees with the uuidgen tool in Gentoo and Raspbian and also agrees with the output of this webtool https://uuidonline.com/ and this https://www.uuidtools.com/v3 Ubuntu is producing a different result. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/util-linux/+bug/1892516/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
