Re: partition black magic but no data lost phew!
On Mon, Jul 13, 2009 at 3:56 PM, Chris Whitehouse cwhi...@onetel.comwrote: 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 r...@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-unsubscr...@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 ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: partition black magic but no data lost phew!
Randi Harper wrote: On Mon, Jul 13, 2009 at 3:56 PM, Chris Whitehouse cwhi...@onetel.comwrote: 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 r...@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-unsubscr...@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 r...@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 r...@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 ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
