Hi,

Is it possible to have two bootable partitions on OS4? So that during booting you have two partitions you can select to boot from.

Coder

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@Coder

Yep, i have on peg2 2 for morphos, and 3 for aos4. Its all matter of the boot flags / priority / and boot menu changes. There (on peg2) afer booting i have firstly 2 menus : morphos and aos4, choicing any of them bring 2 for mos, and 3 for aos4.

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@Coder

iirc. you have to click both mouse buttons and then you can choose which active or disactive for the boot.
Keep in mind that the partitions must be flagged as "Bootable" in media toolbox

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@kas1e

How would you set this up? For example I got the Workbench partition that is showing up on startup. But I want to have another one listed. With the Media Toolbox do I need to give both a certain boot priority number? My goal is to have that partition for starting OS4.1 update. So I want to copy the files to it and be able to start from it instead of using a cdrom.

Coder

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@afxgroup

Got it. I indeed could choose which partition I wanted to boot from. I will copy the files and give it a try.

Coder

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@afxgroup

Will this use the kickstart files from the partion with the highest boot priority ?.
If so wont he have problems with booting different update versions ?

Quote:

afxgroup wrote: @Coder iirc. you have to click both mouse buttons and then you can choose which active or disactive for the boot. Keep in mind that the partitions must be flagged as "Bootable" in media toolbox

Last edited by Spectre660 on 14-Apr-2012 at 11:11 PM.

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@afxgroup

I copied the Update1 files to my DH2 bootable partition but (both mouse buttons) when I select it as a boot device it will give me a black screen and stays on it. I am not sure if it would work this way but I do remember someone getting it to boot this way.

Coder

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@Coder

One of the simplest to use is the multiple kickstart method. I think there is a "feature" that describes how to do it under Features. At boot time you can select which version you want to use. It's a little tricky. You have to be sure not to get your kickstart files mixed up. You have all the kickstart files on your main boot device in a seperate directory for each OS version. An interesting programming project for some enterprising programmer would be a Kickstart manager that would make it easier to update and maintain.

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@Coder

Beeing away from scene, but IIRC in media toolbox just put other like 10 boot priority and other 5.
Then the priority 10 will boot. If you want to boot the other one, just go into boot menu and go thru there.
If you still have problems try to disable other partition from boot menu and look what happens then...

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The AmigaOS menu is useful only when the boot partitions operate on the same Kickstart, so it should not be used to select an older OS release.

SLB menu would work better for this (you always have at least one entry in it if AmigaOS is installed AFAIK). The trick is to include in a kicklayout entry a file named Bootdevice. This contains the device name which will then be given SYS: assign. Hence no need to press mousebuttons.

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@Coder

well...

reading
Quote:

Predefining the default boot device in the KickLayout file ---------------------------------------------------------- This feature requires slb 1.16+ and Loader V51.10+ on an AmigaOne or BootLoader 51.14+ on a classic machine. You should not try to use it without those requirements, this may result in a non-booting or unstable system! If you want some other device than that with the highest boot priority to be the default boot device for a given KickLayout file, add an entry like MODULE Kickstart/BootDevice to the KickLayout file (caution, the name is case sensitive) and create a text file with that name that contains the device name (not the volume name) of the preferred boot device, e.g. this command Echo >Kickstart/BootDevice "DH1" executed in the shell will do it.

(I never tryed it)

The best way was to create a bootable partition on your hdd with priority lower than the current boot device(to be sure) and than copy over it the sytem files(includede kicktart that you want to use for the boot...

I the past I used a different way to boot up the OS4.1 cd in my old A1SE:

1 - I created a boot partition with higher boot priority of the "standard"
2 - I copyed the whole system dir of the AOS4.1 inastall cd(the directory containing the system)
3 - I edited the kicklayout removing the usb entryes so the SE wont lock on start.
4 - I rebooted the system and so I boot in the os4.1 install cd without locks :)

I facts was enough to copy only the kickstart files on the new partition since the system was booted from the cd(you dont have to remove it from the cd reader) or, if you like, you can assign the cd on the new partition to install the system fastly :)

Hope that helps...

PS remember to deactivate the "new" partition and remove the usb entryes also in the new installed AmigaOS4.1 in MediaToolBox before restart or you get in troubles :P

Last edited by Tuxedo on 15-Apr-2012 at 12:01 PM.
Last edited by Tuxedo on 15-Apr-2012 at 12:01 PM.

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@Coder

As Tuxedo said, be careful trying to boot from a different partition by using the Early Startup Screen. By the time that screen appears, Kickstart has been loaded (from the highest priority bootable partition) and can't be changed. If you then boot a different system, it might not match the Kickstart versions.

If you want to boot cleanly from a different partition, the only safe way is to make it the highest boot priority (using Media Toolbox). Don't make partition boot priorities 5 or higher, since CDs are priority 5 and you won't be able to boot a CD to recover if you have HDD priorities that are equal to or higher than 5.

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@Tuxedo

Giving it a try as we speak.

@tonyw

Quote:

As Tuxedo said, be careful trying to boot from a different partition by using the Early Startup Screen. By the time that screen appears, Kickstart has been loaded (from the highest priority bootable partition) and can't be changed. If you then boot a different system, it might not match the Kickstart versions.

You are right. The "other" files are loaded so even if I got to the part of the installation it would complain I need to boot from the CD as it thinks I want to upgrade.

I will just set the new bootable partition to the highest so it boots from that and if the miracle happens I can install it I will disable that bootable partition again so that upon reboot it starts from the correct partition.

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@Coder

What really would be useful is a little utility
that can changes priorities of the harddisk's
and/or partitions.

It could have a list of all devices with there
priority and that way we would have an oversight
of all priorities in use and we could also check
if there are conflicts.

Any coder around?

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@Dirk-B

Yep. What would also help is to be able to select what needs to be started or not concerning the modules. This for A1SE owners.

I booted and it is copying files now so fingers crossed.

Quote:

Any coder around?

'



Coder

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@Coder

If you are trying to get away for the A1SE lockup with usb with the OS 4.1 install CD then it may be easiier to create a custom copy of the CD with the kickstart line for usb removed.

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@Spectre660

For some reason it refuses to boot after I changed the Kicklayout file. But the bootable partition works great.

I got Update 1 installed now and moving on to the next updates.

Coder

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@Coder

I got back to 4.1.1 and am still using it.

If i have troubles i just have to put the 4.1.1 CD (ISO)
in the drive, select cdrom one go, and the system is
up again. Why i have troubles? Well, i change a lot of
harddisks and i make almost one or other mistake
with setting them bootable or the priority numbers.

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@Coder

Ok.

On the Sam machines things are much easier as you can boot from either a USB pendrive or SDcard etc.

Last edited by Spectre660 on 15-Apr-2012 at 03:20 PM.

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@all

I got it up and running with update 4!

A big thanks to everyone here helping out.

Coder

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