Re: Size of initrd
On Sat 21 Nov 2020 at 21:47:02 (+0000), Andy Smith wrote:
>
> On Sat, Nov 21, 2020 at 02:52:49PM -0500, Stefan Monnier wrote:
> > One of the has /boot/initrd.img files that take about 15MB while the
> > other has /boot/initrd.img files that take about 30MB (in both cases,
> > they are compressed with `lzma`).
> >
> > Any idea what this difference could come from (or how I could try and
> > track it down) and how I could fix the size to be more like 15MB?
>
> A common question during install is whether to build an initramfs
> that has all drivers as modules, or one that only has the "targeted"
> drivers as modules. That could be the difference you are seeing.
>
> $ grep MODULES /etc/initramfs-tools/initramfs.conf
Note that /etc/initramfs-tools/conf.d/ files override this,
particularly /etc/initramfs-tools/conf.d/driver-policy
which IIRC is written by the installer.
> will tell you what it is currently set to, and if you change it and
> then do
>
> # update-initramfs -u -k <version>
>
> or
>
> # update-initramfs -u -k all
>
> then you can compare the differences.
>
> If that doesn't show it, you may need to take the initramfs apart to
> compare contents.
Cheers,
David.
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