36 lines
2 KiB
Text
36 lines
2 KiB
Text
====
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FreeBSD host notes:
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- needs to run as root in order to use /dev/tap* networking (why?)
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(actually RELENG_6 and above now has a sysctl net.link.tap.user_open
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to allow users to use it too. don't forget to adjust device node
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permissions in /etc/devfs.rules.)
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- slirp (usermode networking) is fixed now in cvs, on FreeSBIE 1.0 guests
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you still have to manually do:
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echo nameserver 10.0.2.3 >/etc/resolv.conf
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but i've been told that that's normal. (fixed on FreeSBIE 1.1.)
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and you have to wait a bit for dhclient to do its thing; traffic to
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address 10.0.2.2 is routed to 127.1 on the host.
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- expect timer problems when guest kernel HZ is > hosts,
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for example time sleep 1 takes 49 seconds and booting sleeps for
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minutes at the acd0 probe with a FreeSBIE 1.0 guest, thats because
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its kernel is built with HZ=5000, and FreeBSD's default is 100...
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(no longer a problem with FreeSBIE 1.1.) The linux 2.6 kernel uses
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1000 by default btw. Enabling /dev/rtc doesn't seem to help either
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(not included since it needs a patch to emulators/rtc.)
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- using physical media doesn't work on 4.x hosts (missing DIOCGMEDIASIZE
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ioctl.)
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- the -smb option (smb-export local dir to guest) needs the net/samba
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port/package installed in addition to qemu.
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- RELENG_6 and up guests often crash while accessing the emulated cdrom
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(see kern/84102, http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/84102),
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using a kernel without PREEMPTION has been reported to fix this problem.
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(or do an ftp install instead of installing from the emulated cdrom, and
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then make a new kernel.) [fixed since 6.0-R.]
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- 6.0-RC1 was released with an ed driver that doesn't like qemu's emulated
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RTL8029 nic, this has been fixed in the meantime but if for some reason
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you need to use that version as a guest you can temporarily add the patch
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in this message: http://docs.freebsd.org/cgi/mid.cgi?200510131428.21211.jkim
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(not included in the port since the used VIA VT86C926 PCI ID does not
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really match the emulated nic exactly, it just `happens' to work with
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6.0-RC1's driver.)
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====
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