Bug#886642: marked as done (please default to a larger /boot for guided partitioning)
Your message dated Tue, 26 May 2020 17:55:11 +0200
with message-id <20200526155511.GA1106585@chou>
and subject line Re: Bug#886642: fixed? (please default to a larger /boot for guided partitioning)
has caused the Debian Bug report #886642,
regarding please default to a larger /boot for guided partitioning
to be marked as done.
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Hi there! Filing this after a discussion on IRC. For various guided
partitioning profiles (at least "use entire disk and use LVM") the created
/boot is 256M in size.
I'd like to suggest a larger default, at least 512M. Note: this would only
change the default for guided partitioning and would not prevent someone from
manually specifying a smaller size.
with current kernel and default initramfs/generator settings, you need roughly
33.2M for a vmlinuz/initramfs/system.map triplet on amd64. So there's enough
room for 7 at a time, but you also need at least 10M for grub, and that may
very a lot depending on the specifics of the host.
I think the default should leave enough room for a user to install more rescue
options, since it can be very hard/impossible to grow /boot later on if they
decide they want it. GRML currently requires ~280M for the small version (600M
for the fully featured version). grml-rescueboot is a very nice integration
package to add grml ISOs to the GRUB menu and it would be nice if it would be
usable on a default installation without having the foresight to manually set
the /boot size larger. (There's also grub-imageboot as a more generic solution,
the user may wish to put e.g. BIOS/firmware update ISOs in /boot for use with
This seems like a nice bug for a beginner to patch, and I am a beginner for
d-i (but anyone else who wants to try please don't let me stop you)
 perhaps things are more complex than that and it depends on the size of the
disk; it has appeared 256G for me with VM tests (=8G drive) and real drives
 Exactly how large, I'm sure, many might have an opinion on; let the discussion
Kernel: Linux 4.9.68-x86_64-linode89 (SMP w/2 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
⣾⠁⢠⠒⠀⣿⡁ Jonathan Dowland
⢿⡄⠘⠷⠚⠋⠀ https://jmtd.net ⠈⠳⣄⠀⠀⠀⠀ Please do not CC me, I am subscribed to the list.
Closing this since it should be fixed in dailies.
On Tue, May 26, 2020 at 03:22:22PM +0100, Jonathan Dowland wrote:
> On Mon, May 25, 2020 at 01:22:03PM +0200, Holger Wansing wrote:
> > This is indeed fixed for bullseye, tracked in #893886 / #951709, leading to /boot
> > getting a size between 512 and 768MB (depending on disc size).
> Thanks for fixing this,
> > I was not aware of this bug, so did not close it...
> I'm not sure what to do with it, now. Partman is done and those bugs
> archived. This is against debian-installer, and I presume there's some
> lag before it picks up/bundles a fixed partman, so perhaps this bug
> should track that. Can someone with more of a clue tell me if that makes
> > Should this be considered for backporting to stable?
> And I'm guessing that should be tracked in yet another bug.
That should happen in one of the existing partman-auto bugs if someone
wants to push for it.