blip@uublip.uucp (Brant Pellett) (05/29/91)
I have an AT&T 3b1 running 3.51m with in internal 320K FD and an external floppy tape (looks like streamer, but it's not...) I'm trying to format my FLOPPY TAPE so I can mount it as a (dreadfully slow) second drive. Is this fultile? Has anyone ever done it? How slow does it get? I'm wanting to do this because I'm strapped financially, yet don't have enough disk space to get -news-. Here's what I've tried so far: ------------------------demo starts here----------------------------- $ ls -l /dev/*ft* crw-r--r-- 1 root root 9, 0 Feb 18 15:34 /dev/rft0 crw-r--r-- 1 root root 9, 3 Apr 30 13:32 /dev/rft3 $ /etc/mkfs /dev/rft3 mkfs: slice 3 not initialized $ iv -uv /dev/rft3 iv: description file needed. $ cd /usr/lib/iv $ iv -uv /dev/rft3 FT0 iv: /dev/rft3 is not slice 0 of a raw device $ iv -uv /dev/rft0 FT0 /dev/rft0 Device Type: FD Name: Archive Cylinders: 7 Heads: 1 Sectors: 256 ** Phase 1 - Initializing Internal VHB. iv: Invalid VHB, disk must be formatted. $ iv -iv /dev/rft0 FT0 /dev/rft0 Device Type: FD Name: Archive Cylinders: 7 Heads: 1 Sectors: 256 ** Phase 1 - Initializing Internal VHB. iv: cannot set 3145523isk description. : Invalid argument $ /etc/mkfs /dev/rft0 mkfs: cannot mkfs on slice 0 $ cat FT0 #sccs "@(#)iv/lib:FT000 1.1 # iv description file for 48 TPI Floppy file system tape. # iv requires even number of sectors / track type FD name Archive cylinders 7 heads 1 sectors 256 steprate 0 exchangeable $ $ $ 0 1 2 $ $ ------------------------demo stops here----------------------------- Any ideas? If so, I'd appreciate e-mail as there's no guarantee I'll receive any particular article. BBBB L IIIII PPPP egsner!uublip!blip B B L I P P Brant Pellett uu BBBB L I PPPP 213-422-1808 B B L I P P.O. Box 7396 BBBB LLLLL IIIII P Long Beach, CA 90807-0396 -- BBBB L IIIII PPPP egsner!uublip!blip B B L I P P Brant Pellett uu BBBB L I PPPP 213-422-1808 B B L I P P.O. Box 7396
lenny@icus.ICUS.COM (Lenny Tropiano) (06/03/91)
In article <1991May29.165557.5351@uublip.uucp> blip@uublip.uucp (Brant Pellett) writes: |>I have an AT&T 3b1 running 3.51m with in internal 320K FD and an external |>floppy tape (looks like streamer, but it's not...) |> |>I'm trying to format my FLOPPY TAPE so I can mount it as a (dreadfully slow) |>second drive. Is this fultile? Has anyone ever done it? How slow does it |>get? |> [...] The one thing that is missing is the block-device necessary for a mounted filesystem. This tp.o device driver does not support this. Even if it did, it's very slow. The same tape drive on 3B2/400 formats a tape in 20 minutes, makes a filesystem on tape device in 2 hours, and accessing the drive is very slow. I guess having a 23mb filesystem on occasion would be useful, but it CANNOT be done on a 3B1 as the device driver was written. -Lenny -- | Lenny Tropiano ICUS Software Systems lenny@icus.ICUS.COM | | ...!{ames,cs.utexas.edu,pacbell}!icus!lenny attmail!icus!lenny | +---------------- 14300 Tandem Blvd #222, Austin, TX 78728 -----------------+