Date: Tue, 14 Jul 2009 21:27:31 +0100 From: Chris Whitehouse <cwhiteh@onetel.com> To: Randi Harper <randi@freebsd.org> Cc: User Questions <freebsd-questions@freebsd.org> Subject: Re: partition black magic but no data lost phew! Message-ID: <4A5CEA33.4040607@onetel.com> In-Reply-To: <e277d6c80907140203y7ae12267x5fb92aa292024b66@mail.gmail.com> References: <4A5BBBA9.2030800@onetel.com> <e277d6c80907140203y7ae12267x5fb92aa292024b66@mail.gmail.com>
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Randi Harper wrote: > On Mon, Jul 13, 2009 at 3:56 PM, Chris Whitehouse <cwhiteh@onetel.com>wrote: > >> Hi, >> >> This is from memory (brain not ram) and I can't recreate the steps for >> reasons which will be obvious, so may not be entirely accurate. >> >> I have a sata hard disk which is divided into 2 slices. Slice 1 (ad4s1) is >> about half the disk and had the remains of a standard install with swap, / , >> /var, /tmp, /usr. Slice 2 (ad4s2) is the remainder and has a single >> partition for data, ad4s2d. It was all created with sysinstall and doesn't >> have anything special like dangerously dedicated. >> >> The operating system on this machine is on a second hard disk which is what >> I booted from. >> >> I moved all the data from ad4s1f onto ad4s2d so that I could delete >> partitions from slice 1 and make a single large partition. >> >> I then unmounted all ad4* partitions. I may even have rebooted. >> >> sysinstall - Configure - Label allowed me to delete ad4s1a but when I tried >> to delete the other ad4s1* partitions sysinstall told me I had to set >> kern.geom.debugflags=16 before I could make changes on a running system . I >> set kern.geom.debugflags but changes I made in sysinstall did not take >> effect, the partitions persisted, both as /dev/ad4s1* and as entries in >> sysinstall >> >> At some stage sysinstall core dumped and somewhere else ad4s2d got deleted. >> I managed to recreate it and didn't lose any data. >> >> Next I booted from a pen drive and successfully deleted the partitions from >> slice 1, being very careful not to delete the partition on slice 2, however >> when I exited from sysinstall ad4s2d was gone. Again I managed to recreate >> it and didn't lose any data. >> >> The bit that puzzles me is that ad4s2d disappeared twice and the second >> time I am sure I didn't do any explicit steps to delete it. >> >> Did I hit a bug in sysinstall or did I do something wrong? I didn't lose >> any data in the end but I could easily have done (I know - back up - I'm >> going to go and buy a nice big external hard disk very soon ;) >> >> FreeBSD muji 7.1-PRERELEASE FreeBSD 7.1-PRERELEASE #0: Mon Nov 24 20:22:16 >> EST 2008 root@pcbsdx32-7:/usr/obj/pcbsd-build/cvs/7.0.2-src/sys/PCBSD >> i386 >> >> Everything is sorted now so I am really asking this out of curiousity. >> >> Thanks >> >> Chris >> _______________________________________________ >> freebsd-questions@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-questions >> To unsubscribe, send any mail to " >> freebsd-questions-unsubscribe@freebsd.org" > > > When you booted from the pen drive, was sysinstall running as init? ie: is > this the memstick.img from the ftp site or a homebrew disc1.iso->usb image, > or did you have freebsd installed to the pen drive? If so, what version? > > -- randi > I'm pretty sure I used these instructions to create the pen drive install. http://typo.submonkey.net/articles/2006/04/13/installing-freebsd-on-usb-stick-episode-2 Otherwise it was a standard 7.2-R install. As the pen drive doesn't have an rc.conf I think it must be the submonkey article. uname -a for the pen drive: FreeBSD 7.2-RELEASE FreeBSD 7.2-RELEASE #0: Wed Jul 1 21:15:38 BST 2009 root@eco.config:/usr/src/sys/i386/compile/GENERIC_NO_SBP i386 uname -a for the bootable hard disk which I gave incorrectly in my first post is FreeBSD eco.config 7.2-RELEASE-p1 FreeBSD 7.2-RELEASE-p1 #0: Sat Jun 20 22:43:47 BST 2009 root@eco.config:/usr/src/sys/i386/compile/GENERIC_NO_SBP i386 This is from Manolis's XFCE DVD http://freebsd-custom.wikidot.com/downloads-page Chris
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