Re: dd question
On Wed, May 03, 2006 at 05:36:46PM -0500, Andrew wrote: On Wed, 2006-05-03 at 14:11 -0600, Chad Leigh -- Shire.Net LLC wrote: Can I used dd from my freebsd box to completely copy the whole disk, partition tables and all, to another disk? ... have another suggestion. If you think the disk will be ok, use dd to zero-out the rest of the drive; i.e. ... One of these days, I am going to write a tool to do just this sort of thing, since it seems to be a fairly common practice. I believe that tool would be g4u, http://www.feyrer.de/g4u/, along with the FAQ at http://www.feyrer.de/g4u/#shrinkimg . p -- Paul Chvostek [EMAIL PROTECTED] it.canadahttp://www.it.ca/ ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: dd question
On Thu, 2006-05-04 at 10:15 -0400, Paul Chvostek wrote: On Wed, May 03, 2006 at 05:36:46PM -0500, Andrew wrote: On Wed, 2006-05-03 at 14:11 -0600, Chad Leigh -- Shire.Net LLC wrote: Can I used dd from my freebsd box to completely copy the whole disk, partition tables and all, to another disk? ... have another suggestion. If you think the disk will be ok, use dd to zero-out the rest of the drive; i.e. ... One of these days, I am going to write a tool to do just this sort of thing, since it seems to be a fairly common practice. I believe that tool would be g4u, http://www.feyrer.de/g4u/, along with the FAQ at http://www.feyrer.de/g4u/#shrinkimg . You are correct; although g4u is a collection of shell scripts, not an executable. There is some debate about whether or not it needs to be anything more than a shell script, but I think it makes sense. Right now we are using a re-write of g4u with FreeSBIE to install images in a lab on campus. It sort of has a GUI; we're using 'cdialog' based menus. I would like to re-write it in C, and add most of the features listed at http://www.feyrer.de/g4u/#size. I know it would be quite difficult, but I would like to add filesystem support to this yet-to-be-written tool as well. And I think it should be multithreaded too. This list of features seems to make this more of a programming exercise than question of what's actually necessary to get the job done. Anyway... When I get around to it... -Andrew ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
dd question
I have a Windows machine that also has some linux partitions. lilo is the main boot manager. Can I used dd from my freebsd box to completely copy the whole disk, partition tables and all, to another disk? The disk in the machine is starting to appear to be a little flaky and I have another of the same mechanisms here and would like to just basically clone the whole thing over. I seldom use the machine but when I do need it I need it (tax time, an old website that uses a specific windows tool for updating, etc) Thanks Chad --- Chad Leigh -- Shire.Net LLC Your Web App and Email hosting provider chad at shire.net ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: dd question
On May 03 at 14:11, Chad Leigh -- Shire.Net LLC wrote: I have a Windows machine that also has some linux partitions. lilo is the main boot manager. Can I used dd from my freebsd box to completely copy the whole disk, partition tables and all, to another disk? The disk in the machine is starting to appear to be a little flaky and I have another of the same mechanisms here and would like to just basically clone the whole thing over. I seldom use the machine but when I do need it I need it (tax time, an old website that uses a specific windows tool for updating, etc) I've done this and had success. You can boot the machine that you want to dupe with a live CD, then dd from the disk to either a file somewhere or straight to another disk, then you should be able to just boot from the new disk (the new disk must be = the size of the old disk, people have said that the exact same size is required, but I haven't found that to be the case.) A couple other quick plugs, check out ddrecover if you have bad sectors. Last but not least, I've used netcat with success to do these dupes across a (secure) network. Mike ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: dd question
On Wed, 2006-05-03 at 14:11 -0600, Chad Leigh -- Shire.Net LLC wrote: I have a Windows machine that also has some linux partitions. lilo is the main boot manager. Can I used dd from my freebsd box to completely copy the whole disk, partition tables and all, to another disk? The disk in the machine is starting to appear to be a little flaky and I have another of the same mechanisms here and would like to just basically clone the whole thing over. I seldom use the machine but when I do need it I need it (tax time, an old website that uses a specific windows tool for updating, etc) Thanks Chad I've done this several times, and it works reasonably well. Someone recommended piping the output through netcat, which will work; however I have another suggestion. If you think the disk will be ok, use dd to zero-out the rest of the drive; i.e. dd if=/dev/zero of=zeros; rm zeros; dd if=/dev/ad0 of=- | gzip - - | nc $HOSTNAME $PORT; I've always used FTP instead of netcat, but you should be just fine. netcat may even be a bit faster, since you don't have the overhead of the FTP protocol. On the receiving end, just do the reverse: nc -l $PORT | gzip -d - - | dd if=- of=/dev/ad0; You can play around with blocksize too; sometimes it will speed up the process a little bit. One of these days, I am going to write a tool to do just this sort of thing, since it seems to be a fairly common practice. -Andrew ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
