When running inside a QEMU microvm with the source directory shared via 9pfs, the kernel build process fails > Error: Could not mmap file: vmlinux Thus, we need to run the build in a path on a local filesystem. To support this, the Makefile now supports an `O` option, and all the build scripts have been adjusted to make use of it as needed. Since building in a local filesystem would ultimately discard the final artifacts when the VM terminates, we need yet a different location for the files we want to keep. The `IMAGESDIR` option can be used to specify this path. This path can be on a shared filesystem, thus saving the artifacts outside the microvm.
19 lines
266 B
Bash
Executable File
19 lines
266 B
Bash
Executable File
#!/bin/sh
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# vim: set sw=4 ts=4 sts=4 et :
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set -e
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. ./config
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IMAGESDIR="${1}"
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mkdir -p "${IMAGESDIR}"
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mksquashfs \
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/mnt/gentoo \
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"${IMAGESDIR}"/rootfs.squashfs \
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-comp gzip \
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-ef squashfs.exclude \
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-no-exports \
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-noappend \
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-wildcards
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