A test of whether the oddities matter is whether it all works. Try
booting with the sysback partition used as root after making sure
/sysback/etc/fstab mounts what you want where you want it when what is
now /sysback becomes /.
On Thu, 1 Aug 2002, vvor wrote:
> when i try "cd / ; tar clf - . | (cd /sysback; tar xfBp-)", several things
> happen.
>
> shell says that "f" is an "Old option" and requires an argument.
>
> i removed "f" from the command. copying proceeds, but the shell reports
> dozens of "socket ignored" warnings. does this matter? can i still boot into
> the backup?
>
> /sysback comes out smaller than /.
>
> backing up /usr to /usrback, the backup turns out larger than the source.
>
> any elucidation? do these things matter?
>
> thanks,
>
> vora
>
> > -----Original Message-----
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED]]On Behalf Of Steven J. Yellin
> > Sent: Wednesday, July 31, 2002 11:32 PM
> > To: [EMAIL PROTECTED]
> > Subject: Re: backup question/newbie
> >
> >
> > On Wed, 31 Jul 2002, vvor wrote:
> >
> > > I have two hdd, 1 contains seawolf, the other is empty.
> > >
> > > the first looks like this:
> > > / 3gb
> > > /boot 15mb
> > > /usr 3gb
> > > /home 9.8gb
> > > /web 3gb
> > >
> > > the other has 2 partitions, thus:
> > > /backup 10gb
> > > /netdrive 10gb
> > >
> > > about 7-8 gb of data needs to be backed up from drive 1 to
> > drive 2 to backup
> > > everything.
> > >
> > > 1. can i backup from multiple partitions on one drive to a
> > single partition
> > > of another drive? is tar meant for this?
> >
> > Yes you can use tar and put more than one tar file on /backup. But
> > there may be a limit on the size of the file you can create.
> >
> >
> > > 2. how useful is this scheme? if my system drive dies, how do i
> > recover a
> > > tar file from the second drive? don't i have to do a complete
> > install on a
> > > new/repaired drive 1 first? if so, will i be able, e.g., to
> > replace /usr &
> > > /etc, etc., et al., and have everything work as expected?
> >
> > You can boot your system using the installation disk or tomsrtbt --
> > see http://www.toms.net/rb/ -- without doing an installation, then restore
> > your backup file using tar if that's what you used to make backups.
> > Another approach would be to make smaller partitions of /backup and
> > call one, say, /sysback for a copy of /, one /usrback for a copy of /usr,
> > and have a third partition for everything else. Then copy / into /sysback
> > and /usr into /usrback. For example, tar can do a copy with something
> > like "cd fromdir; tar clf - .|(cd todir; tar xfBp -)". Suppose, for
> > example, that /sysback is in the /dev/hdc3 partition. You can boot your
> > computer with what you called /sysback in place of / by, at the lilo
> > prompt, typing "linux root=/dev/hdc3". And suppose, for example, /usrback
> > is the /dev/hdc5 partition. If you have modified /sysback/etc/fstab to
> > mount /dev/hdc5 as /usr, that will be what's called /usr when you boot
> > with root=/dev/hdc3.
> > The rest of what you want backed up can be done with tar to put
> > files into some other partition.
> >
> > > 3. should i just get a tape drive and forget about my /backup partition?
> > >
> > >
> >
> > Disks are cheap, but the backup I described is vulnerable to crackers.
> > Tapes can be put in a drawer, where they at least cannot be reached via
> > the internet. However, even with tapes, if your system is compromised,
> > it's probably safest to restore it from the installation CD even if you
> > have done a backup to tape.
> >
> > > thanks for any advice, i appreciate it!
> > >
> > > vora
> > >
> > >
> > >
> > >
> > > _______________________________________________
> > > Seawolf-list mailing list
> > > [EMAIL PROTECTED]
> > > https://listman.redhat.com/mailman/listinfo/seawolf-list
> > >
> >
> > --
> > Steven Yellin
> >
> >
> >
> > _______________________________________________
> > Seawolf-list mailing list
> > [EMAIL PROTECTED]
> > https://listman.redhat.com/mailman/listinfo/seawolf-list
>
>
>
> _______________________________________________
> Seawolf-list mailing list
> [EMAIL PROTECTED]
> https://listman.redhat.com/mailman/listinfo/seawolf-list
>
--
Steven Yellin
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