Date: Sun, 2 Dec 2007 23:45:06 -0500 From: "Matt LaPlante" <cyberdog3k@gmail.com> To: freebsd-questions@freebsd.org Subject: Installer failing dns lookups. Message-ID: <cbb8f04c0712022045g536c54bcl1cc602c180f9d31a@mail.gmail.com>
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I will preface this by saying I am not a regular FreeBSD user, and although I've had a few successful installations in the past, I'm not very current on the material. I recently got the itch to try a new FreeBSD install, and not having a real purpose for the build, I went for some bleeding edge and grabbed 7.0-BETA3-i386-bootonly.iso. I went through the standard graphical install, partitioned disks, selected the package set, and all seemed well. When I came to the network portion, I selected no IPv6 and yes DHCP. DHCP came up correctly from my LAN DHCP server, and I moved on. I picked a mirror that didn't yet have beta3 on it (apparently) and the download failed. I went to try again, but the next mirror I tried wouldn't connect. Pretty soon, the installer was insisting that it can't find any domains via dns, and that I should check the network config. Well sure enough the network settings are right (not surprising considering they'd *just* worked, and I hadn't changed them), my dns server is fine, but the installer won't so much as find ftp.freebsd.org. I figure hey, that's what you get for trying beta software, let's try something a little less radical and maybe it will work. I opt for the 6.3 RC1 bootonly iso next. Wouldn't you know it, same results. If you don't pick a functional mirror on the first try, suddenly the installer forgets how to look up hosts in dns. After rebooting the installer a few times, I manage to confirm that if I get the right combo on the first time through the installer (ftp passive, ftp1.us.freebsd.org worked in this case), things work perfectly. If I do something silly like trying http without a proxy, or picking a mirror that doesn't have the distro or doesn't connect, after one or two cycles dns lookups magically fail and I have to reboot. Sure enough, I went back to my 7B3 disc, and using my winning combo of ftp/passive, ftp1.us, the install works right off the bat. (Note that these combinations are just examples of what works for me, right now. I'm not suggesting that the connection type or the mirror name is somehow responsible for things being broken; it's merely for completeness of story.) So, the essence of this bug report is this: If I fail to begin the installation download on the first couple tries, the installer habitually becomes unable to resolve dns until a reboot is performed. This affects at least 6.3 and 7.0, but could go back much further. - Matt
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