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
