Date: Wed, 10 Mar 1999 22:03:49 +0300 (MSK) From: "Aleksandr A.Babaylov" <babolo@links.ru> To: cjclark@home.com Cc: pete@bowtie.nl, hackers@FreeBSD.ORG Subject: Re: using dd to make backup of disk? Message-ID: <199903101903.WAA25960@aaz.links.ru> In-Reply-To: <199903101524.KAA01521@cc942873-a.ewndsr1.nj.home.com> from "Crist J. Clark" at "Mar 10, 99 10:24:41 am"
next in thread | previous in thread | raw e-mail | index | archive | help
Crist J. Clark writes: > Peter Weijmarshausen wrote, > > Before you all start mailing me about how stupid it > > is to use dd as a backup mechanism: I use this in > > order to maintain an instant bootable backup. > > So if the primary disk crashes I unplug it, reboot the > > system and I have a working system again. > > Why is, > > # cd backupfs > # dump -0af - origfs | restore -rf - > > Any less 'instant?' And 'dump' is meant to handle live filesystems. dd is much faster. boot codes and disk labels are not copied by dump|restore only ufs (and ext2fs) can be copied by dump|restore -- @BABOLO http://links.ru/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199903101903.WAA25960>