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author | Sam Thursfield <sam.thursfield@codethink.co.uk> | 2017-11-10 11:25:31 +0000 |
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committer | Sam Thursfield <sam.thursfield@codethink.co.uk> | 2017-12-06 14:45:25 +0000 |
commit | 6c27a98c6a5207a29bffaeeb486479a2c24cd26c (patch) | |
tree | b6955b8dec6fde8cd5837b8487dc66a0325ed23b /elements/systems/minimal-system.bst | |
parent | 58d9422afe0191276109e2ecaeaec721d8816a88 (diff) | |
download | definitions-6c27a98c6a5207a29bffaeeb486479a2c24cd26c.tar.gz |
Add minimal-system-image-x86_64
This element produces a disk image that boots in QEMU. It has a kernel,
BusyBox, and little else; but should be suitable as a basis for more
grand endeavours.
This disk image we produce is 53MB. I spent a while trying to get this
as small as possible and this is as far as I got:
* The boot partition seems to have a minimum size just over 32MB;
lower than that and SYSLINUX fails to write the boot sector. The
combined size of the initramfs and kernel is about 32MB, so I
imagine that's what limits us.
* The main partition is limited in size only by the amount of binaries
that we put there.
* We have a useless 40KB swap partition, which the x86image plugin
insists on creating for us. Again 40KB is the minimum size that
`mkswap` will allow. It's possible to override or modify the
x86image plugin to avoid swap altogether but I'm not sure of the
best way to proceed.
There are a few dependency cleanups in the bsp-generic stack; previously
we'd build the whole 'foundation' stack which took ages and wasn't
needed at all.
Diffstat (limited to 'elements/systems/minimal-system.bst')
-rw-r--r-- | elements/systems/minimal-system.bst | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/elements/systems/minimal-system.bst b/elements/systems/minimal-system.bst new file mode 100644 index 00000000..57a5698a --- /dev/null +++ b/elements/systems/minimal-system.bst @@ -0,0 +1,12 @@ +kind: compose +description: Minimal system + +depends: +- filename: systems/minimal-system-content.bst + type: build +- filename: initramfs/initramfs-gz.bst + type: build + +config: + include: + - runtime |