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SCO Santa Cruz Operation (SCO) was a software company based in Santa Cruz, California which was best known for selling three UNIX variants for Intel x86.

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  #1 (permalink)  
Old 02-27-2008
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Join Date: Feb 2008
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Smile SYSBAKP - Create emercency boot disk

Hi,

I am hoping someone can assist me please!
I need to create an emerceny boot disk after performing a SYSBAKP however I don't have a floppy drive on the server. Previously, someone created one to a CD to me however I don't know however I don't know how to do this.

Any feedback would be greatly apprecaited as I am quite unsure at the moment!
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Old 02-28-2008
jgt jgt is offline
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Posts: 348
On SCO OpenServer release 6.0.0, and presumably Unixware 7.1 see the following:

#man emergency_disk

On 5.0.7 and older, you need to ensure that cdrecord is installed, and modify /usr/lib/mkdev/fd to create a diskette image rather than actual media, and then copy the image to cd.
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Old 02-28-2008
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Join Date: Feb 2008
Location: Phoenix Az
Posts: 11
SCO 5.07 Has a hidden CD boot creation feature.

This is directly from SCO technical Article #112505

Can I create my Emergency Floppies to CD rather than floppy?
------------------------------------------------------------
OpenServer 507 _does_ already have the mkdev fd option to create a
Emergency-CD !

See the 507 /usr/lib/mkdev/fd script and note the comment:

# hidden: 5. bootable CD (requires mkisofs, cdrecord) ...

So run "mkdev fd" and on the following menu:

Emergency Boot and Root floppy filesystems option
-------------------------------------------------

Choices for type of floppy filesystem.

1. 96tpi, double sided, 15 sectors per track (1.2M 5.25 inch)
2. 135tpi, double sided, 18 sectors per track (1.44M 3.5 inch)
3. 135tpi, double sided, 36 sectors per track (2.88M 3.5 inch)
4. 135tpi, double sided, 21 sectors per track (1.68M 3.5 inch)

Just press "5" and although not shown it will trigger the creation of
a bootable CD, including mkisofs image creation and cdrecord burning
when you select Single Boot&Root creation and System Specific Boot
(unless the boot kernel can't fit).

If you don't have a recordable CDROM installed, when prompted to enter
a CD to record to, from another console:

# cd /etc/bootroot.d

and you'll find all the files there, in case you wanted to burn the
ISO image using a Windows package, say, Nero on Windows, you'd need to
use the ISO image which is temporarily created as:

/etc/bootroot.d/bootcd.iso

But please note, that at the end of the mkdev fd script a function
called 'cleanup' is called and this will remove the $WORK directory,
which is defined to be /etc/bootroot.d, and as the iso image is in
there, you need to copy it to /tmp before the removal of $WORK.

--------------------------------------------------------------------

This has saved my a** on more then 1 occasion!

Eclectic wave
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Old 4 Weeks Ago
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Join Date: Oct 2004
Posts: 1
Did anyone create the bootable CD using above method?
My sco unix server having the following error:

bash-2.03# mkdev fd

--------------------------------------------------------------
FLOPPY FILESYSTEM CREATION AND EMERGENCY BOOT/ROOT SET PROGRAM
--------------------------------------------------------------

Choices for contents of the floppy filesystem.

1. Filesystem
2. Emergency Boot and Root floppy filesystems

Enter an option or q to quit: 2

Emergency Boot and Root floppy filesystems option
-------------------------------------------------

Choices for type of floppy filesystem.

1. 96tpi, double sided, 15 sectors per track (1.2Mb 5.25 inch)
2. 135tpi, double sided, 18 sectors per track (1.44Mb 3.5 inch)
3. 135tpi, double sided, 36 sectors per track (2.88Mb 3.5 inch)
4. 135tpi, double sided, 21 sectors per track (1.68Mb 3.5 inch)

Enter an option or q to quit: 5
Error: Invalid option. Please re-enter option:

My sco version is 5.0.7
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