Quoting Daniel O'Connor <[EMAIL PROTECTED]>:
idd, same problem here. When using -z option, works perfectly. Without it, it fails.On Wednesday 06 June 2007 16:14, Robin Gruyters wrote:Then a tar the file (with or without blocksize set) to tape: $ sudo tar -cf /dev/sa0 archive.dmp $After that I try to read/list the tar from tape with tar -t: $ sudo mt -f /dev/sa0 rewind $ sudo tar -tf /dev/sa0 archive.dmp tar: Unrecognized archive format: Inappropriate file type or format $ I get strait away the "Unrecognized archive" message. But when I extract the archive from tape, it works perfectly: $ sudo tar -xvf /dev/sa0 x archive.dmp $ I have tested this with libarchive and tar from RELENG_6 and RELENG_6_2. No problems with libarchive and tar from RELENG_6_1.I did.. tar -zcvf /dev/sa0 /boot tar -ztvf /dev/sa0 tar -b 1 -zcvf /dev/sa0 /boot tar -b 1 -ztvf /dev/sa0 tar -b 20 -zcvf /dev/sa0 /boot tar -b 20 -ztvf /dev/sa0 tar -b 128 -zcvf /dev/sa0 /boot tar -b 128 -ztvf /dev/sa0 And they work. The example you gave failed however, so do.. tar -b 1 -cvf /dev/sa0 /boot tar -b 1 -tvf /dev/sa0 tar -b 20 -cvf /dev/sa0 /boot tar -b 20 -tvf /dev/sa0 tar -b 128 -cvf /dev/sa0 /boot tar -b 128 -tvf /dev/sa0 Using dd to feed tar does work though. (I think this agrees with Robin's findings although the fact that it works with -z is curious) [cain 17:05] ~ >mt status Mode Density Blocksize bpi Compression Current: 0x40 variable 0 disabled ---------available modes--------- 0: 0x40 variable 0 0x1 1: 0x40 variable 0 0x1 2: 0x40 variable 0 0x1 3: 0x40 variable 0 0x1 --------------------------------- Current Driver State: at rest. --------------------------------- File Number: 0 Record Number: 0 Residual Count 0 This is a Tandberg TS400 (LTO2 drive, LTO1 tape)
Here is mine 'mt status' output: $ sudo mt status Mode Density Blocksize bpi Compression Current: 0x47 variable 0 DCLZ ---------available modes--------- 0: 0x47 variable 0 DCLZ 1: 0x47 variable 0 DCLZ 2: 0x47 variable 0 DCLZ 3: 0x47 variable 0 DCLZ --------------------------------- Current Driver State: at rest. --------------------------------- File Number: 0 Record Number: 0 Residual Count 0 Our tapedrive is a "HP C7438A V312". (DAT) Kind regards, Robin Gruyters Network and Security Engineer Yirdis B.V. I: http://yirdis.com P: +31 (0)36 5300394 F: +31 (0)36 5489119
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