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Adding a 2nd disk (DOS) on SCO5

john_jenkins
john_jenkins asked
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Last Modified: 2013-12-16
I want to mount a 2nd (DOS) disk in my SCO 5.0.4 system - no luck. I've tried 2 options given on the SCO tech. help BBS with no success. The last involved usinf mknod for /dev/dsk/1s[C-J,d] with chowns, chgrps and chmods. I also suspect I may have 'lost' the params for the disk as far as SCO is concerned, though it works as a 2nd disk with W95 OK...  
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Can you please tell us what is the size of the Disk.
And how is it configured on the machine
 eg: LBA/NORMAL---1st Controler/2nd Controler ---
    Master/Slave and so on
Also please tell us precisely what have you tried so far.


best

Author

Commented:
The 1st disk (master on 1st EIDE / Mode 4) is 5Gb/LBA Seagate formatted for SCO Unix SYS 5.0.4, the 2nd disc is a 230 Mb Quantum prodrive LPS 230Mb formatted for Dos 6.22 as the master on the 2nd controller & The CDROM is EIDE 12x on the slave of the 2nd controller.

I've tried the 2 sets of mknod / mount instructions on the SCO tech site, one of then as listed in my question:

mkdev dos   (OK)
mkdir drived (at root level - OK)
mknod /dev/hd1d b 1 112 (OK ? - creates a device anyway)
mount -f DOS /dev/hd1d /drived (fails - bad device)

the other similar but with the mknods for ...B,C,D,E etc.

No luck so far.


Here it is.

The correct node is 176 (1st partition 1st HD 2nd controller)

so make
mknod  /dev/hd2d b 1 176
mknod /dev/rhd2d c 1 176
              ^
This is because this is the 2nd controller

Also see man HW hd and look at the minor device numbers.
You need to convert them but you have them all there.

Best regardes

Author

Commented:
This was similar to other advice I've received separately by email, however when I tried it I found that my disc was trashed
(sigh). Not your fault people (& i'm pessimistic - I've got a security) - Any further suggestions please?

Thanks all.

KK
How trashed it was??
What did appear on a "ls" output??

Have you tried to put this in comp.unix.sco.misc ??

Best
Frederico

Author

Commented:
All appeared OK initially, but when I rebooted the system I got
the dreaded "no Operating system" message - it looked like it had
attempted (with some degree of success to hit either the boot
sector, the partition table or the FAT .....

I didn't look into it any further, I just set it up again from
scratch. This time I've split the disk into 2.5Gb SCO, 500Mb DOS
& 2Gb W95......


If you please try again with my indications
and do not do anything else than
making the nodes
and making "mount /dev/???? /mnt".

This should work and it does work with all the versions
I have (sco Unix 3.2.4.v4.2 ; SCO OPENSERVER 5.0.2 and SCO OPENSERVER 5.0.4) with 4 harddisks.

Best regards

Author

Commented:
All was dark, an now 'tis bright
Your help has shown me into the light
The advice on SCO's BBS
Got me into a right old mess
Their instructions set me for a fall
But you have gone and solved it all.
(Th' th' th' th' that's all folks)

This one is on us!
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