home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!elroy.jpl.nasa.gov!swrinde!mips!mips!public!thad
- From: thad@public.BTR.COM (Thaddeus P. Floryan)
- Newsgroups: comp.sys.3b1
- Subject: Re: What's in Development Set?
- Keywords: warning backup UA
- Message-ID: <7526@public.BTR.COM>
- Date: 27 Jul 92 00:26:34 GMT
- References: <1992Jul22.124105.4309@brtph560.bnr.ca> <1992Jul23.150331.6182@mydual.uucp>
- Organization: BTR Public Access UNIX, Mountain View CA
- Lines: 39
-
- In article <1992Jul23.150331.6182@mydual.uucp> olson%mydual.uucp@alliant.com writes:
- |I can't answer your question, but you should know about the backup
- |system on these machines.
- |
- |FULL BACKUP ISN'T.
- |
- |Full backup via the window system on a 3b1 does *not* backup *any*
- |software installed from a floppy, no matter when it was done. This
- |makes sense in the context of a system where the distribution disks are
- |available, but it will cost you *all your application software* if all
- |you have is the hard disk.
- |
- |What full backup does is back up everything else--the stuff not
- |installed. That should correspond to user files.
- |
- |I don't recall what file tells the system what to skip, perhaps someone
- |else can help. You can, of course, create something to do a complete
- |[...]
-
- Heh, heh.
-
- The trick is altering the date AND contents of /etc/.installdate
-
- On my systems (for some time now):
-
- $ ls -l /etc/.installdate
- -r--r--r-- 1 root root 29 Jan 1 1970 .installdate
- $ cat /etc/.installdate
- Thu Jan 1 00:00:00 PST 1970
-
- If you want to do the same (as root):
-
- echo "Thu Jan 1 00:00:00 PST 1970" > /etc/.installdate
- touch -m 0101000070 /etc/.installdate
-
- Or you just simply "find / -depth -print | cpio -ocB > /dev/whatever" if
- you want to back up everything.
-
- Thad Floryan [ thad@btr.com (OR) {decwrl, mips, fernwood}!btr!thad ]
-