Date: Sun, 6 Sep 2015 23:57:43 +0800 From: Julian Elischer <julian@freebsd.org> To: Don whY <Don.whY@gmx.com>, FreeBSD-Hackers Mailing List <freebsd-hackers@freebsd.org> Subject: Re: Mount NetBSD partition/slice Message-ID: <55EC6277.1040002@freebsd.org> In-Reply-To: <55EBF5C1.2050906@gmx.com> References: <55EBF5C1.2050906@gmx.com>
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On 9/6/15 4:13 PM, Don whY wrote: > Hi, > > I've pulled the media from my NetBSD systems (6.x?) before moving to > FreeBSD (9.2). The goal was to set up FreeBSD-based appliances and > maintain them from FreeBSD *systems*. > > However, I've been having a tough time getting FreeBSD to play nice > with the NetBSD media. A bit of research indicates that there is > no support for these incompatible volume formats. > > So, I can either rebuild one of more NetBSD systems and pull all > the data across a network connection. This could be tedious as > there are 10-12 slices of significant size on each volume. (I had > hoped to just install the drives in the FreeBSD boxen and cp(1) the > contents of the volume at bus speeds.) > > Or, just rebuild the NetBSD systems and make NetBSD-based appliances > (i.e., abandon FreeBSD). > > [I'm not an OS zealot; I'm just looking for something that *works* > with the least amount of wasted effort/time] > > Have I missed some "trick" to coax NetBSD into *reading* these > volumes? > > Thanks! > --don > _______________________________________________ > freebsd-hackers@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-hackers > To unsubscribe, send any mail to > "freebsd-hackers-unsubscribe@freebsd.org" I had the same problem when moving from Mach2.5 to 386BSD in 1992.. answer.. after making a physical copy (always make a physical copy), I noted down the start and end locations for the partitions I wanted, and created new 386BSD disklabels on the drive, overwriting the Mach VTOCs . I set the partitions in the new disklabel to match the locations of the old ones. then I just mounted them as the partitioning scheme doesn't touch the contents of the partitions, just defines them. NetBSD have more 'slices' than we had, so you may have to copy out the first 8 and then do it again and do the second 8. use fdisk and disklabel. IF there is some small amount of space at the end of the device, and you can do without the first partition, (copy it off first) you maybe able to use a gpt partition table and get them all (except I remmeber that a gpt partitoning block set, uses more space than may be available at the front of a NetBSD drive before the frst important information. It also uses some space at the end, but you'll have to google it to find out how much in each case.
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