SCSI TK50 and writing tape

Mr Ian Primus wrote: ... My notes for 2.10bsd say that tape 1 should look like this: File RecSize #Recs Content ---- ------- ----- ------- 0 512 41 tapeboot,tapeboot,boot 1 1024 28 mkfs 2 1024 27 restor 3 1024 26 icheck 4 10240 451 dump of root fs 5 10240 2277 tar of /usr without usr/src 6 10240 466 tar of /usr/src/{sys,include} Which means one way to do this is to write a shell script using the "non rewind device" (/dev/nst0) to write the proper files, each with dd and the proper block size. You can't just dd the entire thing in one go. And, if what you have is a "tape image", you need to break it into files first. (or, use a utiltity which knows about the tape image and will write the image back to the tape with the right block size) I'd start by just writing the boot file and see if that works. Here's the maketape.sh script from 2.11 #!/bin/sh # File Blocksize Content # 0 512 mtboot # 512 mtboot # 512 boot # 1 1024 disklabel # 2 1024 mkfs # 3 1024 restor # 4 1024 icheck # 5 10240 root.dump # 6 10240 file6.tar # 7 10240 file7.tar # 8 10240 file8.tar TAPE=nrst0 cat mtboot mtboot boot | dd of=/dev/nrst0 obs=512 dd if=disklabel of=/dev/nrst0 obs=1024 dd if=mkfs of=/dev/nrst0 obs=1024 dd if=restor of=/dev/nrst0 obs=1024 dd if=icheck of=/dev/nrst0 obs=1024 dd if=root.dump of=/dev/nrst0 obs=10240 dd if=file6.tar of=/dev/nrst0 obs=10240 dd if=file7.tar of=/dev/nrst0 obs=10240 dd if=file8.tar of=/dev/nrst0 obs=10240 -brad