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Right now, I'm doing most of my testing using a qemu/kvm guest and
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generating the initramfs on another box but the support is all present
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to build for the "running" machine. For the former, you can boot the guest
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using qemu's -kernel and -initrd options. Currently supported rootfs
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types are regular partitions, root-on-lvm and root-on-lvm-on-encrypted-pv.
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dracut exists and will build an image. It is command-line equivalent
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to most mkinitrd implementations and should be pretty straight-forward
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to use.
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To use, just run dracut with an output file name and, optionally, a
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kernel version (it defaults to using the current). The appropriate
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modules will be copied over and things should be good to go. If you'd
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like to customize the list of modules copied in, edit /etc/dracut.conf
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and set
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modules="foo bar baz"
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Requirements:
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* udev
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* plymouth > 0.6.0-2 (for encrypted root; otherwise, it should noop out)
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* nash (for switchroot until we get in util-linux)
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