Boot from cdrom ?

25 July 2004, 14:06

Can anyone tell me if it possible to boot from cdrom using WinUAE 0.8.27
and if so how do you do it, thanks

RetroMan · 25 July 2004, 16:11

Real Amigas are not able to boot from CD (except CDTV and CD32) so it´s also not possible with WinUAE

But you can make a boot disk (adf) that holds the Amiga CDFileSystem and mounts the CD Drive so you can "boot" from there (well, kind of)

What do you need it for ?

25 July 2004, 16:18

You can also cheat by setting up your CD-ROM path as your hard drive

If it's a proper amiga CD with a startup script etc. it should work. Amiga Format's coverdisk CDs worked for me but that was an old winuae version.

dirkies · 25 July 2004, 19:04

Quote:

Real Amigas are not able to boot from CD

I think this is not true for real miggies, you can select the (SCSI only?) CD drive in the early startup menu with the Cyberscsi2 module.
It's the "El Torito" CD format (MasterISO2 had some support for that)

Correct me if I'm wrong, I think the OS CDs are bootable, no?

RetroMan · 25 July 2004, 19:16

Quote:

Originally Posted by dirkies

Correct me if I'm wrong, I think the OS CDs are bootable, no?

No

26 July 2004, 21:44

the reason i need to boot from cdrom is that winuae 0.8.27 refuses to open all my cdrom coverdisks from workbench and as most of the coverdisks have a full boot system installed (s/startup-sequence,c,libs etc) it seemed the simplest way to solve the problem.
setting the hard drive path to the cdrom drive has worked fine. thanks everybody for the help.
the older versions of winuae didnt give me the same problem

RetroMan · 26 July 2004, 22:02

But it should work without using the CD as HD !! Which CDFileSystem do you have installed ?

26 July 2004, 22:10

amiCDFS, have tried cachecdfs as well but still cannot open some cdrom's from workbench. its only happened with the later version of winuae. its only with cu amiga disks as well but not all of them.

RetroMan · 26 July 2004, 23:17

Try to change the MaxTransfer size to 0xfc00 in the CD0 file, sometimes WinUAE and modern CDRoms have difficulties with standart maxtransfer rate !

Amiga1992 · 26 July 2004, 23:36

On a REAL amiga, you CAN boot from CDs if your SCSI interface is autobootable, I think. Why wouldn't it work if it works even for ZIPs?

Toni Wilen · 27 July 2004, 09:05

Quote:

Originally Posted by Akira

On a REAL amiga, you CAN boot from CDs if your SCSI interface is autobootable, I think. Why wouldn't it work if it works even for ZIPs?

CD support need CD filesystem driver and I don't think there was any SCSI controllers with CD filesystem in boot ROM..

I think RDB formatted CDs would autoboot

Quote:

Try to change the MaxTransfer size to 0xfc00 in the CD0 file

Correct. At least ASPI has max 64K (or was it 128K) transfer limit, not sure about non-ASPI mode.

Maybe someday I'll add SCSI parsing code that automatically splits too large transfers or something..

25 July 2004, 14:06	#1
Reeno Posts: n/a	Boot from cdrom ? Can anyone tell me if it possible to boot from cdrom using WinUAE 0.8.27 and if so how do you do it, thanks

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
3.1 CDROM support	chiark	support.Hardware	5	05 February 2008 13:04
best cdrom filesystem?	poppe	support.Hardware	6	21 June 2005 03:44
cdrom help	Dave_wb	New to Emulation or Amiga scene	3	12 March 2005 11:29
CDrom problem...Help me please!!	unregistered	support.WinUAE	2	18 November 2002 02:02
A1200 and CDROM	@UAE	support.Hardware	12	14 September 2002 18:31

25 July 2004, 16:11	#2
RetroMan Registered User Join Date: Aug 2001 Location: Germany Age: 51 Posts: 3,704	Real Amigas are not able to boot from CD (except CDTV and CD32) so it´s also not possible with WinUAE But you can make a boot disk (adf) that holds the Amiga CDFileSystem and mounts the CD Drive so you can "boot" from there (well, kind of) What do you need it for ?

25 July 2004, 16:18	#3
oldpx Posts: n/a	You can also cheat by setting up your CD-ROM path as your hard drive If it's a proper amiga CD with a startup script etc. it should work. Amiga Format's coverdisk CDs worked for me but that was an old winuae version.

26 July 2004, 21:44	#6
Reeno Posts: n/a	the reason i need to boot from cdrom is that winuae 0.8.27 refuses to open all my cdrom coverdisks from workbench and as most of the coverdisks have a full boot system installed (s/startup-sequence,c,libs etc) it seemed the simplest way to solve the problem. setting the hard drive path to the cdrom drive has worked fine. thanks everybody for the help. the older versions of winuae didnt give me the same problem

26 July 2004, 22:02	#7
RetroMan Registered User Join Date: Aug 2001 Location: Germany Age: 51 Posts: 3,704	But it should work without using the CD as HD !! Which CDFileSystem do you have installed ?

26 July 2004, 22:10	#8
Reeno Posts: n/a	amiCDFS, have tried cachecdfs as well but still cannot open some cdrom's from workbench. its only happened with the later version of winuae. its only with cu amiga disks as well but not all of them.

26 July 2004, 23:17	#9
RetroMan Registered User Join Date: Aug 2001 Location: Germany Age: 51 Posts: 3,704	Try to change the MaxTransfer size to 0xfc00 in the CD0 file, sometimes WinUAE and modern CDRoms have difficulties with standart maxtransfer rate !

26 July 2004, 23:36	#10
Amiga1992 Registered User Join Date: May 2001 Location: ? Posts: 19,646	On a REAL amiga, you CAN boot from CDs if your SCSI interface is autobootable, I think. Why wouldn't it work if it works even for ZIPs?

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)