Date: Sat, 18 Mar 2000 11:05:33 -0600 From: Richard Wackerbarth <rkw@dataplex.net> To: stable@freebsd.org Subject: Re: HEADS UP: 3.x -> 4.0-STABLE upgrade instructions Message-ID: <00031811062100.03963@nomad.dataplex.net>
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On Fri, 17 Mar 2000, Nik Clayton wrote: > I've got no idea how easy it would be to do, but we could use a variable > that we could set in the bootloader to specify where the /etc and /dev > directories actually are. It'd be nice to upgrade by creating a > /etc.current and a /dev.current. The kernel could then be told to use > these directories instead. > > If, for some reason, your upgrade doesn't work, you can back out to a > previous kernel, even if the new /etc and /dev aren't compatible with the > old kernel. . . In days of old, we used to have two "root" partitions on every system. One was always a "proven" system and the other experimental. When the experimental system crashes on boot-up, you just reboot on the older root partition. And keep a boot floppy around in case you trash the boot blocks. Two "root"s also solves the compatability problem for "modules", "devices", and configuration files like /etc/fstab. This scheme has served me well for decades. I highly recommend it. -- Richard Wackerbarth rkw@Dataplex.NET To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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