Sizing:
$ sudo du -sh /boot/* | grep -e grub -e 5.3.0-18
231K /boot/config-5.3.0-18-generic
8.0M /boot/grub
81M /boot/initrd.img-5.3.0-18-generic
4.5M /boot/System.map-5.3.0-18-generic
11M /boot/vmlinuz-5.3.0-18-generic
This is desktop system, amd64, with all microcodes, and linux-firmware,
and signed grub.
For three kernels that brings my system to (11+81+4.5+0.2)*3+8 = 298.1
MB
Which is still within reasonable /boot sizing and need not to be bumped.
However, there are potential disk space saving that could be made:
* on securebooted systems /boot/grub contains 8MB of modules that cannot be
loaded at runtime
* config is informational only, and is not strictly needed at boot
* System.map is not strictly needed for boot
Which could save (4.5+0.2)*3+8=22.1 MB
Subiquity creates /boot at 1GB.
Ubiquity/partman-auto aims for (512 1024 768)
All are still reasonable for up to 10 kernel versions.
** Changed in: partman-auto (Ubuntu)
Status: Triaged => Invalid
** Changed in: ubuntu-release-upgrader (Ubuntu)
Status: Triaged => Invalid
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https://bugs.launchpad.net/bugs/1831736
Title:
[MIR] lz4 by default
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