davidsen@steinmetz.UUCP (Davidsen) (05/23/86)
In article <10000001@eel> lee@eel writes: > >Which of the many formats of diskette that PC/IX is capable of writing do >you have? Aside from the standard 8/9 sectors 1/2 sides variations, there >are several software variations available: A cpio disk written on a 9 sector disk with the option "-oBc" may be read and written by PC/IX, Xenix all versions SysIII and SysV, and the RT/PC. In addition, a single volume cpio disk may be interchanged between these machines and the AT&T 7300 as follows. The 7300 uses a disk with 8 sectors per track and the first 8 sectors reserved. To move data from 7300=>intel use the magic "-oBc" option, and read it as follows: dd ibs=8*512 skip=1 </dev/rfd048ds8 | cpio -iBcdmlv ^or 1 ^^^^ | use your favorite options To go intel=>7300, first format the disk on the 7300, then write it using the command: something | cpio -oBc | dd obs=8*512 seek=1 >/dev/rfd048ds8 I have been doing a lot of Xenix/286 to 7300, and wrote a pair of programs which will write (and format) or read multi-disk 7300 files on Xenix/286, using standard in/out. Example: find . -print | cpio -oBc | 7300rite /dev/rfd148ds8 will write an entire directory to a series of disks which I can read on the 7300. The command: 7300read /dev/rfd148ds8 | cpio -iBc will restore a series of disk written on the 7300 (to /dev/rfp021). I'm looking at Altos now, a trifle complicated with the 8" disks and all, I have to go through another machine. -- -bill davidsen ihnp4!seismo!rochester!steinmetz!--\ \ unirot ------------->---> crdos1!davidsen / sixhub ---------------------/ (davidsen@ge-crd.ARPA) "Stupidity, like virtue, is its own reward"