Re: [Freedos-user] Formatting 6 MB hard disk in FAT16

2010-05-13 Thread dos386
 /U is unconditional, it will test all and take a lng time

I haven't tried /U on HD yet (works for floppy).

 /S is to copy the system (freedos)

Or copy files manually after brewing the FS and finally fire SYS.COM
to activate the kernel.


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Re: [Freedos-user] Formatting 6 MB hard disk in FAT16

2010-05-13 Thread 4625
12-May-2010 числа в 23:23 часов, Marcos Favero Florence de Barros
написал(а) следующее:

 I'm trying to reformat for FreeDOS a 6 GB hard drive that previously
 had Windows 98.
 
 After running Fdisk to create three 2 GB partitions and make one
 bootable, I ran Format, but it gave the error message:

Try ranish partition magic.

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Re: [Freedos-user] Formatting 6 MB hard disk in FAT16

2010-05-13 Thread Eric Auer

Hi Marcos,

 FDISK /MBR
 FORMAT C: /S /U

   Win98? Default BPB *FAT1x* 1024 sectors/FAT, 512 root size, FAT32 Forced.
   Access Denied! LOCK problem? Aborting.
   [Error 55]

With 1024 sectors per FAT you would have 256*1024
clusters, very im-plausible. Remember that FORMAT
gets information about suggested FAT size from DOS
(kernel) and that FAT16 partitions smaller than
32 MB have a different partition type byte than
those larger than 32 MB and/or those in LBA...

Talking about which, why only 6 MB for DOS? Are
you trying to squeeze DOS in a hole between some
already existing multi GB partitions? That should
be avoided - better use a decent partitioning and
resize tool (e.g. GPARTED, e.g. from a boot CD)
to give DOS a FAT16 (or FAT32) LBA partition with
a few dozen or even a few 100 MB size :-).

Another important issue: You sometimes have to do
a REBOOT after FDISK before you run FORMAT to make
sure that DOS updates all calculations about what
a good FAT size etc would be! Also, without LBA,
partitions must be in the first 1024 cyl (8 GB) of
the disk, but the small FAT16 partition type and
FAT12 partition type are NOT available with LBA:

01 FAT12 (not recommended for harddisk)
04 FAT16 SMALL (max 32 MB, not recommended for harddisk)

05 extended
06 FAT16 (min 32 MB)
0b FAT32

0c FAT32 LBA *recommended*
0e FAT16 LBA (min 32 MB) *recommended*
0f extended LBA

It also matters which kernel you use - FreeDOS
kernels 2038 or maybe 2039 should work well.

Eric


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Re: [Freedos-user] Formatting 6 MB hard disk in FAT16

2010-05-13 Thread Alain Mouette

Em 13-05-2010 10:49, dos386 escreveu:

 Or copy files manually after brewing the FS and finally fire SYS.COM
 to activate the kernel.

No, never copy manualy, that is only for (very) advanced users. SYS.COM 
is very important and is working just fine

Alain

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Re: [Freedos-user] Formatting 6 MB hard disk in FAT16

2010-05-13 Thread Alain Mouette
One important thing to try is to format a small partition. Some BIOs 
don't work well with big disks...

alain

Em 13-05-2010 14:47, Marcos Favero Florence de Barros escreveu:
  Alain wrote:
  First try this:
  Boot from a Freedos floppy,
  FDISK /MBR
  FORMAT C: /S /U
  this should put your partition in shape :)

 Tried three times ... result only slightly better than yesterday.
 Error message today:

Win98? Default BPB *FAT1x* 1024 sectors/FAT, 512 root size, FAT32 Forced.
Access Denied! LOCK problem? Aborting.
[Error 55]

 Yesterday there was one more line in the beginning:

Boot sector contents implausible, disk not yet FAT formatted

 So, we are one line closer to the solution :-)

 Marcos



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Re: [Freedos-user] Formatting 6 MB hard disk in FAT16

2010-05-13 Thread Felix Miata
On 2010/05/14 00:49 (GMT+0200) Eric Auer composed:

 ...without LBA,
 partitions must be in the first 1024 cyl (8 GB) of
 the disk, but the small FAT16 partition type and
 FAT12 partition type are NOT available with LBA:

That probably depends on the kernel.

 01 FAT12 (not recommended for harddisk)

Not uncommonly I create these, and anywhere on disk I please, but usually as
placeholders for kernels that expect or require some particular partition(s)
to be in some particular logical order on disk that isn't practical or
possible unless placeholder or dummy partitions are placed only or
primarily for that purpose. Sometimes I'll make an 01 or 11 primary in order
to reserve the place on disk for a boot manager that requires its own partition.

 04 FAT16 SMALL (max 32 MB, not recommended for harddisk)

When disks were 100M or less, this was the type I depended on. This and 16B
of sizes between 16M and 128M produce least cluster overhang waste.
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Re: [Freedos-user] Formatting 6 MB hard disk in FAT16

2010-05-12 Thread Alain Mouette
First try this:

Boot from a Freedos floppy,
FDISK /MBR
FORMAT C: /U

this should put your partition in shape :)

Alain

Em 12-05-2010 23:23, Marcos Favero Florence de Barros escreveu:
 Hi,

 I'm trying to reformat for FreeDOS a 6 GB hard drive that
 previously had Windows 98.

 After running Fdisk to create three 2 GB partitions and make one
 bootable, I ran Format, but it gave the error message:

-
Boot sector contents implausible, disk not yet FAT formatted
Win98? Default BPB *FAT1x* 1024 sectors\FAT, 512 root size, FAT32 Forced.
Access Denied! LOCK problem? Aborting.
[Error 55]
-

 In previous cases, I have been able to format disks in similar
 circumstances by:

  - Running CPB0.COM (Clear Pre Boot v. 1.00 [06-88] - by
DeLima.)

  - In TestDisk, doing the following:
* Delete all data in the partition table
* Clear MBR partition table by writing zero bytes to it
* Change partition type from type 06 (Fat16) to 0e (Fat16 LBA)

 This time, however, none of this worked.

 Help would be appreciated.

 Marcos


 
 Marcos Favero Florence de Barros
 Campinas, Brazil
 fav...@mpcnet.com.br



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Re: [Freedos-user] Formatting 6 MB hard disk in FAT16

2010-05-12 Thread Alain Mouette
Sorry, in precious message should have sais

FORMAT C: /S /U

/S is to copy the system (freedos)
/U is unconditional, it will test all and take a lng time

alain

Em 12-05-2010 23:23, Marcos Favero Florence de Barros escreveu:
 Hi,

 I'm trying to reformat for FreeDOS a 6 GB hard drive that
 previously had Windows 98.

 After running Fdisk to create three 2 GB partitions and make one
 bootable, I ran Format, but it gave the error message:

-
Boot sector contents implausible, disk not yet FAT formatted
Win98? Default BPB *FAT1x* 1024 sectors\FAT, 512 root size, FAT32 Forced.
Access Denied! LOCK problem? Aborting.
[Error 55]
-

 In previous cases, I have been able to format disks in similar
 circumstances by:

  - Running CPB0.COM (Clear Pre Boot v. 1.00 [06-88] - by
DeLima.)

  - In TestDisk, doing the following:
* Delete all data in the partition table
* Clear MBR partition table by writing zero bytes to it
* Change partition type from type 06 (Fat16) to 0e (Fat16 LBA)

 This time, however, none of this worked.

 Help would be appreciated.

 Marcos


 
 Marcos Favero Florence de Barros
 Campinas, Brazil
 fav...@mpcnet.com.br



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