Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!apple!uokmax!rmtodd From: rmtodd@uokmax.ecn.uoknor.edu (Richard Michael Todd) Newsgroups: comp.unix.aux Subject: Re: Backup & Misc Message-ID: <1990Oct5.035047.32209@uokmax.ecn.uoknor.edu> Date: 5 Oct 90 03:50:47 GMT References: Organization: Engineering Computer Network, University of Oklahoma, Norman, OK Lines: 24 MATLEVAN@EKU.BITNET (Jerry LeVan) writes: >Is the following possible? > use dump.bsd to /dev/rmt/tc to copy a sysv file system. > reformat the disk to a ufs. > use restore to recover the files from the tape (without > remaking the partition back into a sysv filesystem. Well, modulo the difference that I did it with /dev/rmt/teac4n (using Tony Cooper's beta TEAC tape driver and a TEAC 150M tape drive), that's exactly what I did when upgrading my /u filesystem to UFS. No problems. You do have to make sure that you've told dump.bsd correctly about the expected length of the tape, as it apparently determines when it needs a new tape by counting how much it has written, not by detecting the end of the tape. (I believe dump.bsd has an option for spec'ing the tape length correctly for the Apple tape drive. Yes, it does, option 'c'). >Is tcb usable/needed/recommended for use with dump.bsd? I don't think so. The dump.bsd man page says that the 'c' option tells it to do writes only in 8K chunks, which seems to be the main function of tcb... -- Richard Todd rmtodd@chinet.chi.il.us or rmtodd@uokmax.ecn.uoknor.edu "Never re-invent the wheel unnecessarily; yours may have corners."-henry@utzoo