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Conference hydra::amiga_v1

Title:AMIGA NOTES
Notice:Join us in the *NEW* conference - HYDRA::AMIGA_V2
Moderator:HYDRA::MOORE
Created:Sat Apr 26 1986
Last Modified:Wed Feb 05 1992
Last Successful Update:Fri Jun 06 1997
Number of topics:5378
Total number of notes:38326

1813.0. "Hard Disk Woes" by MTWAIN::MACDONALD (WA1OMM 7.093/145.05/223.58 AX.25) Tue Oct 25 1988 11:01

    Hard Disk Woes
    
    I have my 42 Mbyte 5.25 HD (ST-506) running as DH0: for the first
    partition and DH1: for the second partition with FFS.
    
    When I added a second 42 Mbyte 3.5 HD (ST-506) and booted my machine,
    I received the message "Cannot find device DH0."
    
    I futzed around with all the dip switches (terminator and device
    #), but that didn't make any difference. Any ideas? Also, what should
    partition 1 and partition 2 be mounted as? DH2: and DH3:?
    
    Paul
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1813.1join the clubGILBRT::BEAUREGARDRoger Beauregard SHR1-3Tue Oct 25 1988 11:2516
    Hey, maybe it's not my fault!!!
    
    Paul,
    	I'm having a similar problem. My disk is partitioned 20,20,20,4
    on a 65MB disk. I am also having problems recognizing the drives.
    I called C Ltd. (my controller) and they informed me that the pointers
    to L:FastFileSystem and such in the mountlist are CASE SENSITIVE!
    However the file is named in the L: directory, the same should be
    used in the mount list. I'm not convinced that this is my problem
    but will check it out tonight. As far as C Ltd knows, there controller
    works fine with 1.3 . I did have some of the partitions working
    with the FFS until I soft booted the system. Now none of the partitions
    appear to be working properly. WTF???
    
    Roger
    
1813.2MTWAIN::MACDONALDWA1OMM 7.093/145.05/223.58 AX.25Tue Oct 25 1988 14:096
    Hmmm .. interesting about case sensitivity. But, dunno why it should
    have a problem recognizing DH0: when I add the second drive. I'll
    have to experiment some more over the weekend.
    
    Paul
    
1813.3MTWAIN::MACDONALDWA1OMM 7.093/145.05/223.58 AX.25Tue Oct 25 1988 14:2911
    Can anyone tell me what the correct device names are for two ST-506
    drives installed with FFS?
    
    I know there must be two partitions per drive. Assuming Disk 1 is
    partitioned with DH0: and DH1:, how should Disk 2 be partitions
    be named? Don't the SCSI devices own DH2: and DH3:?
    
    
    Thanks.
    
    Paul
1813.4Mount anything you wantTLE::RMEYERSRandy MeyersTue Oct 25 1988 15:5925
Re: .1

I find it very easy to believe that the stuff to the left of the "=" in
a mountlist is case sensitive.  I find it very hard to believe that the
stuff on the right hand side of the "=" (like L:FastFileSystem) is
case sensitive.

Re: .-1

You can call a partition anything that you want.  The most common names
for the third and fourth partition are "DH2:" and "DH3:", but if you
want to break with tradition, you could call them "FRED:" and "SUE:".

I believe that with the Commodore controller, that the first partition
comes for free because they use the Expansion drawer and the BindDrivers
command to mount the first partition.  (I don't own the Commodore controller,
this is just what I've gathered.)

However, all other partitions must be mounted using the Mount command, and
devs:Mountlist must contain entries for them.

Type out devs:Mountlist.  Make sure it contains entries for your partitions.
Make sure that the mountlist entries look reasonable.  Make sure that the
entries for the partitions have "Unit = 2" (assuming that the partitions
on the first drive have partition "Unit = 1").
1813.5when to "mount"GILBRT::BEAUREGARDRoger Beauregard SHR1-3Wed Oct 26 1988 09:2623
    well, I was able to get FFS running on my system last night. I
    duplicated the WB1.3 disk, copied over my mountlist,scsi.device
    and xxxxx.device(specific to my controller). When I tried to mount
    Dh0, i got a "not a dos disk" error. I reformated the drive with
    the FFS switch and everything was ok after that. I then mounted
    dh2, which contained the old image of dh0:, copied it to dh0: and
    voila!. 
         The interesting thing is that my dh3: partition was also
    indicating that it was not a dos disk. I reformated that partition
    and it still wouldn't recognize it as a new FFS dos disk. The format
    gave no indication of problems after completion. I do mount both
    dh0 and dh3 in my startup sequence and this appears to be where
    the original problem lies. Everytime I tried to format(FFS) the
    dh3: partition, it would format ok but on reboot, would indicate
    "not a dos disk". I tried 4 times! I then removed the "mount dh3:"
    line from my startup sequence, rebooted, then issued the "mount"
    and "format" commands, and everything worked fine after that. I
    am confused as to why mounting a disk during the startup sequence
    is any different than mounting it after. In either case, the same
    "mount" command was used. Any guesses as to what's going on here?
    
    Roger
    
1813.6assign...HYSTER::DEARBORNTrouvez MieuxWed Oct 26 1988 10:097
    Is it possible that you have two mountlists?  One on Df0: and one
    on DH0:?  I ran into this with mine.  My startup-sequence assigns
    most directories to DH0:.  Later in the sequence, it issues the
    mount command for DH1:, DH2: and HF0:.  Because DEVS:, LIBS:, L:,
    C: etc. have been re-assigned, the computer is now using the mountlist
    sitting in DH0:DEVS instead of DF0:DEVS to mount the additional
    disks.  I had to make sure that both mountlists match.  
1813.7thought of thatGILBRT::BEAUREGARDRoger Beauregard SHR1-3Wed Oct 26 1988 10:185
    I thought of that, both mountlists were the same as well as the
    versions of "mount" and "format".
    
    Roger
    
1813.8copy mountlist for securityJFRSON::OSBORNEBlade WalkerThu Oct 27 1988 09:048
This is probably wasteful (of time), but I copy the df0:devs/mountlist
to the dh0:devs/mountlist in the df0:s/startup-sequence, just before
assigning DEVS: to the hard drive. It's not really necessary, but it
guarantees that the two mountlists match, and I only need to maintain one.

I've seen a lot of programmer time spent fixing the wrong program.

John O.