ned@pebbles.cad.mcc.com (CME Ned Nowotny) (07/27/89)
I finally completed the upgrade of my 7300 with a WD2010 and a MS3085 hard disk drive. In the process, I looked into using iv to format the disk instead of the "new" s4diag program that Thad posted. Well, it turns out that iv, just like the stock s4diag, has the 1024 cylinder limit of the stock hardware hard coded. I was able to get iv to try a format of my (one and only) hard disk by creating a floppy disk boot file system with the iv program included, making a link of /dev/rfp000 to /dev/rhd, and preparing a description file for my disk. The link allowed me to try and format the hard disk without getting the complaint that iv will not format the hard disk. However, iv refused to format the disk when it encountered the 1170 cylinder entry in my description file. In summary, you can create a floppy based file system to support repair of your hard disk, but you still must use the recently posted "new" s4diag to reformat a hard disk drive with more than 1024 cylinders. Ned Nowotny, MCC CAD Program, Box 200195, Austin, TX 78720 Ph: (512) 338-3715 ARPA: ned@mcc.com UUCP: ...!cs.utexas.edu!milano!cadillac!ned ------------------------------------------------------------------------------- "We have ways to make you scream." - Intel advertisement in the June 1989 DDJ.
lenny@icus.islp.ny.us (Lenny Tropiano) (07/28/89)
In article <1942@cadillac.CAD.MCC.COM> ned%cad@MCC.COM (CME Ned Nowotny) writes: ... |>Well, it turns out that iv, just like the stock s4diag, has the 1024 |>cylinder limit of the stock hardware hard coded. I was able to get |>iv to try a format of my (one and only) hard disk by creating a |>floppy disk boot file system with the iv program included, making a |>link of /dev/rfp000 to /dev/rhd, and preparing a description file |>for my disk. The link allowed me to try and format the hard disk |>without getting the complaint that iv will not format the hard disk. |>However, iv refused to format the disk when it encountered the 1170 |>cylinder entry in my description file. |> As far as I can tell formatting >1024 cylinders with the iv command should work, only on the second drive. iv will not let you format anything with the "type" description line in the description file being "HD". It just will come back with the message: iv: cannot reformat Winchester disk. Now if you changed that line to "HD2 or SY" it might work provided you gave slice 0 of the raw disk drive 1. The iv program doesn't look at the device name (ie. /dev/rfp000), but it looks at the major/minor number and how you specify the "type" in the description file. There should be no hard limit to the number of cylinders that you can specify, although I cannot test this myself (both my drives have 1024 cyls). If I have the EXACT message maybe we can check into the problem and get it corrected. I'll see what we can do about allowing formatting of the first drive with iv (of course you would be REQUIRED to boot off floppy). -Lenny -- Lenny Tropiano ICUS Software Systems [w] +1 (516) 589-7930 lenny@icus.islp.ny.us Telex; 154232428 ICUS [h] +1 (516) 968-8576 {ames,talcott,decuac,hombre,pacbell,sbcs}!icus!lenny attmail!icus!lenny ICUS Software Systems -- PO Box 1; Islip Terrace, NY 11752
ned@pebbles.cad.mcc.com (Ned Nowotny) (07/28/89)
In article <930@icus.islp.ny.us> lenny@icus.islp.ny.us (Lenny Tropiano) writes: =>In article <1942@cadillac.CAD.MCC.COM> ned%cad@MCC.COM (CME Ned Nowotny) writes: =>... =>|>Well, it turns out that iv, just like the stock s4diag, has the 1024 =>|>cylinder limit of the stock hardware hard coded. I was able to get =>|>iv to try a format of my (one and only) hard disk by creating a =>|>floppy disk boot file system with the iv program included, making a =>|>link of /dev/rfp000 to /dev/rhd, and preparing a description file =>|>for my disk. The link allowed me to try and format the hard disk =>|>without getting the complaint that iv will not format the hard disk. =>|>However, iv refused to format the disk when it encountered the 1170 =>|>cylinder entry in my description file. =>|> =>As far as I can tell formatting >1024 cylinders with the iv command should =>work, only on the second drive. iv will not let you format anything =>with the "type" description line in the description file being "HD". It =>just will come back with the message: => => iv: cannot reformat Winchester disk. => =>Now if you changed that line to "HD2 or SY" it might work provided you =>gave slice 0 of the raw disk drive 1. The iv program doesn't look =>at the device name (ie. /dev/rfp000), but it looks at the major/minor number =>and how you specify the "type" in the description file. You may well be right about the test of the major and minor numbers of the device. I did not attempt all possible permutations. In particular, I did not experiment with 1024 cylinders to see if I got the message you list above. However, I did get a message with the technique I described complaining that my description file wanted iv to format more than 1024 cylinders. (While I do not recall the exact wording, it was very clear what it was complaining about. Specifically, it referenced the number of cylinders and the fact that I wanted it to format more than 1024.) Whatever else, I did not get: iv: cannot reformat Winchester disk Or anything like it. Please note, this is only meant to be informative. I do appreciate your greater knowledge of the vagaries of the 3B1/7300. Ned Nowotny, MCC CAD Program, Box 200195, Austin, TX 78720 Ph: (512) 338-3715 ARPA: ned@mcc.com UUCP: ...!cs.utexas.edu!milano!cadillac!ned ------------------------------------------------------------------------------- "We have ways to make you scream." - Intel advertisement in the June 1989 DDJ.