On Tue, Oct 15, 2019 at 05:18:47PM +0100, Dimitri John Ledkov wrote: > On Tue, 15 Oct 2019 at 11:13, Dimitri John Ledkov <x...@ubuntu.com> wrote: > > > > On Wed, 5 Jun 2019 at 21:25, Dimitri John Ledkov <x...@ubuntu.com> wrote: > > > > > > On Wed, 5 Jun 2019 at 19:59, Steve Langasek <steve.langa...@ubuntu.com> > > > wrote: > > > > > > > > Hi Dimitri, > > > > > > > > One point here: > > > > > > > > On Wed, Jun 05, 2019 at 01:15:48PM +0100, Dimitri John Ledkov wrote: > > > > > - lz4 size weight over gzip is marginal (14%) but imho worth the > > > > > improved boot time & initrd creation time > > > > > > > > A 14% increase in initramfs size is NOT marginal. Since there are (and > > > > will > > > > always be) various scenarios which require a separate /boot partition, > > > > we > > > > have over several cycles been contending with how to ensure a clean > > > > upgrade > > > > as kernel+initramfs sizes increase over time and push up against the > > > > space > > > > limits of the boot partitions that have historically been created. > > > > > > > > If you are making a change that increases the size of initramfses by 14% > > > > across the board, you must also: > > > > > > > > - update the ubuntu-release-upgrader code to take this into account so > > > > users don't run out of space in the middle of the upgrade > > > > - possibly in a way that is smart enough to know if a user is already > > > > configuring initramfs-tools to use a non-default compressor, to > > > > avoid > > > > false-positives > > > > - check that the minimum size requirements for /boot that are encoded > > > > in > > > > the installers are still adequate, or if they need updating (and if > > > > they > > > > need updating, update this back to 18.04) > > > > - document this issue in the release notes > > > > > > > ubuntu-release-upgrader is dynamically calculated, but I have now > > proposed to bump/update the fallback guestimate. > > > > did the calculation of new size requirements, and /boot sizes are > > still well enough (up to 10 kernels) > > > > release notes updated > > > > The Cking recent lz4 measurements tests are documented in the > description of https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1840934
And also in comment #5 of that same bug. https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1840934/comments/5 -- Brian Murray -- ubuntu-devel mailing list ubuntu-devel@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-devel
