From: Dave Gavin (drg50@Frobozz.COM)
Date: 01/28/93


From: drg50@Frobozz.COM (Dave Gavin)
Subject: Re: SLS Installation
Date: 28 Jan 1993 15:13:24 GMT

In article <C1JH8y.L70@avalon.nwc.navy.mil> dejesus@pluto.nwc.navy.mil (Francisco X DeJesus) writes:
>In article <1993Jan27.115823.3929@mic.ucla.edu> iwelch@agsm.ucla.edu (Ivo Welch) writes:
>>
>>I am a bit confused about the SLS (linux) installation. I am getting a
>>laptop, already formatted for DOS, and I want to make linux my second
>>partition. I would have thought I should:
>>
>> [1] backup the DOS volume
>> [2] repartition the hard disk using DOS's fdisk utility for
>> 2 volumes. I can then handle partition 1 with standard
>> DOS tools.
>> [3] build a Linus file-system, probably booting from SLS disk
>> a1 and a2, and using mkfs.
>>
>>Instead, SLS asks me to use its own fdisk utility. I am concerned
>>whether this is identical to using the DOS fdisk utility. Is it?
>
>The DOS documentation says to use the DOS-Fdisk to create/manipulate
>DOS partitions. For other OS's, it tells you to use whatever is appropriate
>to that OS. In the case of Linux, it happens to be Linux's "fdisk".
>
>I suppose you will have to use DOS fdisk to give x% of your disk to DOS
>then go into Linux and use it to give the remainder to Linux.
>--
> Francisco X DeJesus ----- S A I C ----- dejesus@chinalake.navy.mil
> ------------------------------------------------------------------------------
> * disclaimer: Opinions expressed here are mine. Typos and errors are yours *
> "Duck Season!" "Rabbit Season!" "...rabbit season." "It's Duck Season! SHOOT!"

 You need the linux fdisk to set the partition id flag for Linux/Minix.
DOS will set up the partitions for you, but will flag them for DOS.
You will need to change your Linux partition flags to 81/82/83, depending
on your usage. Here's what mine looks like: (I just love cut 'n paste! ;-) )

Disk /dev/hda: 16 heads, 38 sectors, 683 cylinders
Units = cylinders of 608 * 512 bytes

   Device Boot Begin Start End Blocks Id System
/dev/hda3 * 1 1 270 82061 6 DOS 16-bit >=32M
/dev/hda4 271 271 682 125248 5 Extended
/dev/hda5 271 271 464 58957 83 Linux extfs
/dev/hda6 465 465 488 7277 82 Linux swap
/dev/hda7 489 489 682 58957 81 Linux/MINIX

Command (m for help): l

 0 Empty 8 AIX 75 PC/IX b8 BSDI swap
 1 DOS 12-bit FAT 9 AIX bootable 80 Old MINIX c7 Syrinx
 2 XENIX root a OPUS 81 Linux/MINIX db CP/M
 3 XENIX user 40 Venix 82 Linux swap e1 DOS access
 4 DOS 16-bit <32M 51 Novell? 83 Linux extfs e3 DOS R/O
 5 Extended 52 Microport 93 Amoeba f2 DOS secondary
 6 DOS 16-bit >=32 63 GNU HURD 94 Amoeba BBT ff BBT
 7 OS/2 HPFS 64 Novell b7 BSDI fs

Command (m for help): q

 Hope this helps clear it up for you - I messed up my disk several times
when I was first putting up Linux.
Regards - Dave Gavin

-- 
     /XX\          My opinions,        |David Gavin - Amdahl Corp. - Boston, MA
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(If must use INTEL - run LINUX !)