Path: utzoo!attcan!uunet!aplcen!uakari.primate.wisc.edu!zaphod.mps.ohio-state.edu!usc!elroy.jpl.nasa.gov!turnkey!jackv From: jackv@turnkey.gryphon.COM (Jack F. Vogel) Newsgroups: comp.unix.i386 Subject: Re: copying 5.25 boot disk to 3.5 Message-ID: <6716@turnkey.gryphon.COM> Date: 16 Feb 90 14:15:34 GMT References: <1688@ursa-major.SPDCC.COM> <35947@iuvax.cs.indiana.edu> Reply-To: jackv@turnkey.gryphon.COM Organization: Turnkey Computer Consultants, Westchester, CA Lines: 54 In article <35947@iuvax.cs.indiana.edu> hchen@silver.ucs.indiana.edu (H. Chen) writes: >In article <1688@ursa-major.SPDCC.COM> eli@ursa-major.spdcc.COM (Steve Elias) writes: >>does anyone know how to copy a 5.25 boot disk to 3.5??? >>i'm going crazy with this Zenith 386 machine! it must have the 3.5 >>drive as primary, unless i get a special cable. >> >>"dd" can copy 5.25 to 3.5 media, but how to deal with the boot track? >>is there a special blocksize necessary??? [ suggestion to simply copy files deleted.....] >I did this way for dos 2.0 (or 2.1?) disk. The 3.5 disk was formated >into 360k. ??HUH?? I don't think we are talking about dos here. I would suggest you refrain from posting when you don't understand what you are talking about. The following courtesy Piercarlo Grandi (I think you're right Piercarlo, we DO need a frequently asked questions monthly posting, I just wouldn't want to be responsible!!): Piercarlo writes: -> ->The usual answer is RTFM. A bootable floppy, be it any density, ->size, whatever, has the first track that contains the bootstrap ->(finding the file in /etc that contains the floppy bootstrap is ->left as an exercise to the reader), and the remaining tracks ->contain a filesystem, into which you can put what you want, but ->usually a miniscule root. -> ->The device files /dev/*dsk/f*t (i.e. those ending in 't') will ->give access to the entire floppy, first track inclusive, the ->other will only let you access from the second track onwards. -> ->If you want to duplicate a bootable floppy, just use the device file ->that ends in 't' (/dev/rdsk/f0t will work almost always). -> ->If you want to create a bootable floppy, just copy the boostrap file ->onto the device file that maps the entire floppy, and then mkfs and ->fill the rest. For example: -> -> cp /etc/flboot /dev/dsk/f0t -> mkfs /dev/rdsk/f0 : -> labelit/dev/rdsk/f0 install flop -> mount /dev/dsk/f0 /install -> find -depth -print | cpio -pdlmuav /install -> Disclaimer: These are my opinions, not my employer's -- Jack F. Vogel jackv@seas.ucla.edu AIX Technical Support - or - Locus Computing Corp. jackv@ifs.umich.edu