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) -- Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C
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