| Commit message (Collapse) | Author | Age |
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Nix files shouldn't be considered part of the sources, and so they
should be filtered out. This way, changes to them (that don't change
their meaning) won't force rebuilds.
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Whoops.
Fixes: e64a796 ("host/appvm-lynx-vmm: reduce VM memory")
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When I set the virtio console to go to a new PTY by default, it was
because I was working on / testing patches for terminal emulators to
get them to attach to PTYs and send resize events. Now that I'm not
doing that so much, let's show the console intended for VM output by
default, rather than requiring running another process to connect to
it.
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Not worth pulling this in any more just for another mkdir
implementation!
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The main improvement things brings is that it should resolve a rare
race condition in early boot, where s6-rc-init would run before
s6-svscan, and so the boot would hang because s6-rc would never end up
properly running.
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This is preparatory work before a switch to s6-linux-init.
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We don't need to create the etc/service directory, because we're
already including etc/service/getty-hvc0.
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These never needed to be separate. They were the result of some
confusion while I was trying to hack on the Musl fstab parser, briefly
broke comment parsing, and then didn't realise I'd introduced that
breakage.
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These fields are pretty much obsolete and are supposed to be optional
according to fstab(5), but upstream Musl requires them. Long ago, I
wrote a patch[1] to fix it, sent it upstream, and then applied it in
Spectrum's Nixpkgs as a temporary measure, to avoid churn in the fstab
files, thinking it would quickly be applied upstream.
But it has now been more than half a year since the last discussion on
my patch. I do think it'll probably be accepted eventually, but at
this point it's not worth patching Musl ourselves for to avoid the
very minor churn of doing this change now, and reverting it when my
patch is finally accepted. So just add the fields, and then we can
drop the patch from our Nixpkgs, and then we won't have to rebuild the
Musl-targetting compilers we could otherwise get from Hydra.
[1]: https://inbox.vuxu.org/musl/20210915221155.3977763-4-hi@alyssa.is/
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The reuse tool is fortunately smart enough to ignore these.
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It apparently doesn't on Ubuntu, and this way we also don't have to
hack around it being missing in the Nix sandbox.
Reported-by: Ville Ilvonen <ville.ilvonen@unikie.com>
Message-Id: <20220406082038.4012718-1-hi@alyssa.is>
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Problems with s6-mount:
• s6-mount -a will fail if some filesystems have already been mounted
• Does not support LABEL= device patterns.
We also already have a mount implementation in Busybox, so
standardising on that lets us drop the s6-linux-utils package entirely.
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Trying to use modprobe from Busybox has caused nothing but problems.
The latest issue is that it doesn't implement softdep at all.
rootfs.ext4 before: 509M
rootfs.ext4 after: 513M
Thanks-to: Puck Meerburg <puck@puckipedia.com>
Message-Id: <20220321140107.1043654-1-hi@alyssa.is>
Tested-by: Ville Ilvonen <ville.ilvonen@unikie.com>
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We take linux from buildPackages so don't need the separate linux
argument.
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These have nothing to do with s6-rc.
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This way, we don't allow arbitrary code from the ext partition to run
on the host system, which gives us better integrity guarantees when
paired with Secure Boot. This new scheme also makes it easy to
introspect VMs, since they're defined using a very limited
configuration language.
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I don't think Nix files are likely to contain anything particularly
worth protecting with copyleft, and I'd like to make code sharing with
Nixpkgs as easy as possible, so I think it's a good idea to adopt the
policy that Nix files are MIT-licensed by default to match Nixpkgs.
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