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I'm building an application server with various OS's running in VM's, and I'd like to use NetBSD as Dom0 because I know that the threading stack has been rewritten and ...
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  1. #1
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    NetBSD Dom0 and root filesystem questions


    I'm building an application server with various OS's running in VM's, and I'd like to use NetBSD as Dom0 because I know that the threading stack has been rewritten and I expect it to be more efficient than everything else.

    One thing that I want to do is pass-through a PCIEx1 tuner to a DomU. Searching around, the only info I can find about that seems dated and says that it would only be possible if the DomU is also NetBSD. Is that still the case?

    Second, a quick search indicates that I should be able to boot NetBSD from a LVM partition on a RAID0 of three drives which is exactly what I want to do. It's been nearly a decade since I last installed NetBSD, so I don't have a clue about which filesystem would be best. Is there a general consensus about this?

    Lastly, I'm trying to figure out how much space to allocate. It will be a minimal install running Xen and nothing else, but I plan to use a flat file for swap, and I'll keep the OS ISO's there for convenience. I'll probably need some extra space for upgrades, as well. I only have (3 x 80) 240 GB to work with, and I want to load the VM's in the other LVM partitions so the apps will start fast. Any idea how small of a partition I can get away with without it being too much of a tight squeeze?

    Thank you for any help.

    (haha, I forgot about Hypnotoad!)

  2. #2
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    Well, I found the port-xen mailing list for NetBSD, and it seems that PCI-pass-through is still limited as mentioned above, so I guess that I'll patch a vanilla Linux kernel and load up a minimal Gentoo OS for the Dom0 until things get caught up in NetBSD.

    Thank you so much for all of your helpful suggestions.

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