csfst1@unix.cis.pitt.edu (Charles S. Fuller) (03/08/90)
Could someone please supply the magic argument that will allow tar to find my cartridge tape drive on either a DN4000 or a DN10000, both running SR10.2 ?? I've tried every device in /dev that starts with "r" (rct8, etc.), and a few others that don't even seem likely, but cannot find one that will allow me to write a tar tape. The examples in TFM don't seem to have the answer ... I looked there first. Thanks in advance. Chuck Fuller
krowitz%richter@UMIX.CC.UMICH.EDU (David Krowitz) (03/08/90)
"tar -cvf /dev/rct8 <file list> " should work just fine under SR10.2. /dev/rct8 rewinds the tape, /dev/rct12 does not rewind the tape. Under some circumstances, you may need to rewind the drive before it is used. In this case use "rbak -dev ct -rewind" before using "tar". You may also be able to use "mt -f /dev/rct8 rewind" to rewind the drive from a Unix shell, but I haven't tried it out yet. -- David Krowitz krowitz@richter.mit.edu (18.83.0.109) krowitz%richter.mit.edu@eddie.mit.edu krowitz%richter.mit.edu@mitvma.bitnet (in order of decreasing preference)
beierl_c@apollo.HP.COM (Christopher Beierl) (03/08/90)
In article <22766@unix.cis.pitt.edu> csfst1@unix.cis.pitt.edu (Charles S. Fuller) writes: > >Could someone please supply the magic argument that will allow tar to >find my cartridge tape drive on either a DN4000 or a DN10000, both >running SR10.2 ?? I've tried every device in /dev that starts with >"r" (rct8, etc.), and a few others that don't even seem likely, >but cannot find one that will allow me to write a tar tape. The >examples in TFM don't seem to have the answer ... I looked there >first. The appropriate devices should be /dev/rct8 (rewind at end) and /dev/rct12 (no rewind at end). When accessing non-SCSI cartridge tape drives using Unix tape utilities you must issue a tape rewind command after inserting the tape (even if it is already physically rewound). This can be accomp- lished by either of the following commands: /usr/apollo/bin/mt -f /dev/rct8 rewind or /usr/apollo/bin/rbak -dev ct -rewind If this is not done, you will get a "No such file or directory" error. =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Christopher T. Beierl Internet: beierl_c@apollo.HP.COM;beierl_c@apollo.com Apollo Computer, Inc. UUCP: {mit-eddie,yale,uw-beaver}!apollo!beierl_c A Subsidiary of Hewlett-Packard Phone: (508) 256-6600