Date: Mon, 19 Apr 2010 21:11:27 +0100 From: Chris Rees <utisoft@googlemail.com> To: "J.D. Bronson" <jd_bronson@sbcglobal.net> Cc: freebsd-questions <questions@freebsd.org> Subject: Re: Backing up freebsd to 1 file? Message-ID: <k2nb79ecaef1004191311s306d4810p19bfdaf55ab9bdce@mail.gmail.com> In-Reply-To: <4BCB1DB1.2030802@sbcglobal.net> References: <4BCB07C0.8010305@sbcglobal.net> <20100418161015.f20206f0.freebsd@edvax.de> <1271601423.1287.15.camel@localhost> <j2wb79ecaef1004180745k50811c8cj982af263918bb24@mail.gmail.com> <4BCB1DB1.2030802@sbcglobal.net>
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On 18 April 2010 15:56, J.D. Bronson <jd_bronson@sbcglobal.net> wrote: > =A0be created by the time your system boots on. >> >> Nice answer by Sergio, but I personally would use the j option with tar >> to compress to bzip2; >> >> 3) tar --one-file-system -cvjf /mnt/backup.tbz ./ var usr home >> >> Though I prefer personally to use dump/restore because: >> >> - If you're on UFS, you don't have to single-user the system, just use >> the L option (live filesystem) >> - Restore has an awesome 'interactive' mode >> - See Zwicky [1] >> >> I'll send you my dump scripts if you're interested. It's dead easy to us= e! >> >> Chris >> >> [1] http://www.coredumps.de/doc/dump/zwicky/testdump.doc.html >> >> . >> > > I think Sergio has a nice script. I had been doing something similar but = I > know I recall when untarring =A0(restoring if you will) it was complainin= g > about not being able to do things. It was not sockets and similar stuff t= hat > gets rebuilt on reboot. I do not have failures handy to post (yet). > > Truth be told? - I am running FreeBSD hosts within ESXi. I can backup the > hosts within ESXi but need to take the host offline and its a cumbersome > ordeal. If I had RAID on ESXi, I wouldn't be so worried per se but this i= s > not an option. ESXi is very fussy about what is supported and I dont have > the $ for SCSI and SCSI Raid. > > Basically what I need to do is create a fully restorable backup for 2 > reasons: > > 1. Easy to create another host on ESXi. I can setup/flavor my fbsd instal= l > and then once thats done, setup another host. > > 2. Obvious backup reasons. > > ...right now, if the SATA drive fails that is hosting the fbsd install I = am > dead in the water. I have 5 hosts on this machine spread across 4 SATA > drives but nothing is mirrored or RAIDed in anyway. > > I am at the mercy of these drives w/o any backup- > > Yeah, use dump. It's excellent, and you can bz2 the results. My script for dumping: #!/bin/sh # $Id: backuphdd.sh,v 1.3 2010/02/02 13:02:06 root Exp $ # $Log: backuphdd.sh,v $ # Revision 1.3 2010/02/02 13:02:06 root # Changed so that backup/spare is only manipulated when backup level is 0 # # Revision 1.2 2009/12/22 16:13:05 root # Now uses bzip2 LEVEL=3D$1 mount /backup/dumps mv /backup/dumps/root_level_$LEVEL.bz2 /backup/dumps/root_level_$LEVEL.bz2.= old dump -$LEVEL -Lauf - / | bzip2 > /backup/dumps/root_level_$LEVEL.bz2 mv /backup/dumps/var_level_$LEVEL.bz2 /backup/dumps/var_level_$LEVEL.bz2.ol= d dump -$LEVEL -Lauf - /var | bzip2 > /backup/dumps/var_level_$LEVEL.bz2 mv /backup/dumps/usr_level_$LEVEL.bz2 /backup/dumps/usr_level_$LEVEL.bz2.ol= d dump -$LEVEL -Lauf - /usr | bzip2 > /backup/dumps/usr_level_$LEVEL.bz2 umount /backup/dumps ---end---- I call it from cron ~3 in the morning with a tower of hanoi rotation; it takes the argument to the script as the dump level; /root/backuphdd.sh 0 performs a level 0 dump of all the drives. Don't forget to back up _all_ your partitions! Dump only backs up separate partitions... Chris
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