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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

2269.0. "FFS with jh0?" by KBOMFG::HAUCK (It's me!) Fri Feb 24 1989 06:22

    
    Hi,
    
    is it possible to use the FastFileSystem with my jh0: Harddiskdrive?
    How can I do this?
    
    
    
    thanks,
    
    	Jochen.
T.RTitleUserPersonal
Name		DateLines
2269.1Yes, but JANUS 2.0 is neededCESARE::ZABOTMarco Zabot-Adv.Tech.mgr-Turin ACTFri Feb 24 1989 09:155
    Yes, it is possible, but you need JANUS 2.0 , which is currently
    in Beta test.
    
    Any one knows if Beta test can be distributed or it's copyright
    infringement ?
2269.2worse than thatSAUTER::SAUTERJohn SauterFri Feb 24 1989 10:547
    re: .1--It's probably violation of the license agreement to distribute
    a beta test version of Janus 2.0.  I haven't seen the Amiga beta test
    licenses, but the Digital agreements won't even let you *talk* about
    the product.
    
    Read the agreement to be sure.
        John Sauter
2269.3FFS JANUS driveDECWET::TBAKERTom Baker - DECwest CSSEFri Feb 24 1989 14:5738
    There is an article in Transactor 1.6 about how to set up FFS on an
    MS-DOS side hard drive. I'll try and paraphase the steps without the
    explanations. I don't have a bridgeboard or a hard drive so I've never
    tried any of this so back up everything first.
    
    1.) partition the MS-DOS side drive using the FDISK and ADISK commands.
        (apparently you must reboot after this)
    
    2.) use DJMount to mount the Amiga partition.
    
    3.) use DPFormat to format the Amiga partition. Write down the low and
        high cylinder numbers from DPFormat. The drive must be reformatted
        here even if you already had a JANUS drive set up under the old file
        system.
    
    4.) With a sector editor go to block 0 of the drive. The first four bytes
        will be DOS0. DOS is ASCII, 0 is octal. Change byte 4 from 00 to 01.
        This indicates the FFS.
    
    5.) Create a mount list for the new drive. Use the example mountlist from
        page A3 of the Enhancer Manual. Change the Device entry to
        jdisk.device, Unit # to 0, Surfaces and BlocksPerTrack to match your
        drive, LowCyl and HighCyl to the numbers you wrote down from DPFormat.
        Keep interleave at 0. DosType = 0x444F5301 /* this is DOS1 */
    
    6.) Remove any commands in your startup-sequence that refer to the
        JANUS drive, including DJMount.
    
    7.) Reboot
    
    8.) Mount your FFS JANUS drive using the mount command that came with 1.3.
    
    I REPEAT - I HAVE NEVER TRIED THIS !!!!
    
    hope it works,
    
    tom
2269.4Yes, it worksMERIDN::BARRETTWait'll they get a load of meSun Sep 03 1989 23:208
    I have tried this and it works fine, no problems. This also gives
    you more advantages:
    
    You can define mount list entries for several partitions and use
    mount to mount them
    
    you can specify jh0: to be anything - including dh0: - there is
    no restriction that it has to be jh0: as the mountlist entry.