Date: Sun, 29 Jan 2017 22:07:57 -0800 From: David Christensen <dpchrist@holgerdanske.com> To: freebsd-questions@freebsd.org Subject: Re: FreeBSD 11.0-RELEASE-p7 i386 system drive imaging and migration Message-ID: <3f6c8bfb-70a4-74c2-3879-b328ecd3bb38@holgerdanske.com> In-Reply-To: <alpine.BSF.2.20.1701292206450.71961@wonkity.com> References: <df0c81d7-fd2b-852f-4007-5fb4b24100e0@holgerdanske.com> <alpine.BSF.2.20.1701290622500.13432@wonkity.com> <516b147d-6faa-b9c0-1d8f-2313a0755211@holgerdanske.com> <alpine.BSF.2.20.1701292206450.71961@wonkity.com>
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On 01/29/17 21:18, Warren Block wrote: > On Sun, 29 Jan 2017, David Christensen wrote: > >> On 01/29/17 05:27, Warren Block wrote: >>> On Sat, 28 Jan 2017, David Christensen wrote: >>> >>>> What is the proper way to clone a FreeBSD system image from one drive >>>> to another? >>> >>> On encrypted ZFS? I'm not sure there is a brute-force way that is >>> trustworthy. Using higher-level commands to recreate the partitions, >>> GELI encryption, and then zfs send | recv are certain safer and won't >>> duplicate supposedly unique IDs. >> >> STFW >> >> https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/backup-basics.html >> >> >> toor@freebsd:/root # gpart show >> => 63 31277169 ada0 MBR (15G) >> 63 1 - free - (512B) >> 64 31277160 1 freebsd [active] (15G) >> 31277224 8 - free - (4.0K) >> >> => 0 31277160 ada0s1 BSD (15G) >> 0 4194304 1 freebsd-zfs (2.0G) >> 4194304 4194304 2 freebsd-swap (2.0G) >> 8388608 22888544 4 freebsd-zfs (11G) >> 31277152 8 - free - (4.0K) >> >> >> It appears that my FreeBSD image lives within what Microsoft and Linux >> would call a single MBR primary partition (FreeBSD "slice"?), and that >> FreeBSD further subdivides that into boot, swap, and root sections >> (FreeBSD "partitions"?). > > Yes. I think the 11.0 installer made the mistaken assumption that > machines that boot from BIOS must (or should) use MBR/disklabel. I manually selected MBR partitioning scheme in the installer, as I have machines going back to Pentium 4's and I want something that will work on all of them. >> STFW RTFM there is information scattered in many places. Is there a >> concise document that explains what is relevant for creating, cloning, >> migrating, etc., FreeBSD 11 r7 system drives -- what the on-disk data >> structures are, how to back up them and their contents, how to >> recreate the structures on a blank drive, how to restore contents, >> how to deal with size, identifier, serial number, crypto key, etc., >> changes, etc.? > > Not that I know of. What you are talking about is a combination of > numerous different systems. I talk about partitioning here: > > http://www.wonkity.com/~wblock/docs/html/disksetup.html > > But if you are using encryption, that means GELI (geli(8)). Okay. >>>> What is the proper way to move a HDD or SSD with a FreeBSD system >>>> image from one computer to another computer? >>> >>> Provided the binaries have not been optimized for one CPU, just move the >>> drive. Disk drive names can change, which is not a problem when labels >>> are used. >> >> It looks like I got lucky on device names. Where are slice/ >> partition/ filesystem labels documented, notably the strategies and >> procedures for using them? > > See glabel(8). Okay. >>> Ethernet interface names can change. If there is only one >>> interface, use ifconfig_DEFAULT in /etc/rc.conf. >> >> Regarding the network interface, my /etc/rc.conf contains shell >> variable assignments. What am I to assign to 'ifconfig_DEFAULT'? > > Usually, SYNCDHCP: > > ifconfig_DEFAULT="SYNCDHP" > > It functions the same as ifconfig_em0 or _re0 or whatever, but for all > interfaces with no other settings. Okay -- this worked: ifconfig_DEFAULT="DHCP" >> RTFM 'ifconfig_DEFAULT' I draw blank: >> >> toor@freebsd:/root # grep ifconfig_DEFAULT /etc/rc.conf >> /etc/defaults/rc.conf >> toor@freebsd:/root # man rc.conf | grep ifconfig_DEFAULT > > setenv PAGER less > man rc.conf > Type > /ifconfig_DEFAULT > and press Enter. Yes, I tried that. Interactive use: Pattern not found (press RETURN) grep'ing the man page: dpchrist@freebsd:/usr/home/dpchrist $ man rc.conf | grep ifconfig_DEFAULT <nothing> >> The Xfce application issues appeared both when: >> >> 1. The FreeBSD system drive image was copied to another drive and >> then booted in the source machine. >> >> 2. The FreeBSD system drive was booted in another machine. >> >> >> What is causing the Xfce issues? > > No idea. I have moved hard drives from one machine to another, and in > fact wrote an installer that sets up FreeBSD to be used on a generic > machine with Xfce. Does it work on FreeBSD 11.0 i386? David
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