Editing OS details

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Edit OS Details






This screen will appear when you click the Edit or Add A New Item button on the Manage Boot Menu screen.




Type

Select the type of system you are installing.


Supported systems are ubuntu, manjaro, suse, fedora, debian, slackware, mint, android, phoenix and clover.


When you select a supported OS, Grub2Win will generate the configuration code for you automatically.


If you select custom code, isosboot or submenu you will see a different screen shown here.

For these types, you will be responsible for entering the code.



On EFI systems, you can select chainload a file. Then type in the file path, or click the button to select the file to be chainloaded.


On BIOS systems, you can select chainload a disk. You will then specify the disk address that contains the MBR to be loaded.




There are also several utility types. The code is automatically generated for them:


bootinfo       Creates a menu entry for the Grub2Win Boot Time Utilities.


submenu     Creates a submenu entry to allow another level of menu entries. You will need to manually create custom code for the second level menu entries.


isoboot        Creates code to boot an ISO file from a disk, CD or USB drive.


reboot          Sets up a menu entry to reboot your system.


shutdown     A menu entry to shut down your system.


bootfirmware  A menu entry to reboot to your system's EFI firmware customization (EFI systems only).


 

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Title

The text that will be displayed by Grub for this OS in the Grub boot menu selection. It must be 1 to 75 characters in length.

When using a hotkey, the title must not exceed 65 characters in length.


The following special characters are not allowed in titles      \   /   :   *   ?   $   &   "   >   <   |  '   }   {



Partition Layout (Linux systems only)


Select Root Partition Only for single partition systems.


Select Root and Boot Partitions if you have a separate boot partition.


Grub2Win will generate the appropriate code to load Linux based on your selection.



Root Partition (Linux systems only)


Select the root partition from the pull down box. Grub2Win scans your disks and automatically lists the Linux partitions for your selection. If you also have a separate Boot partition, a Boot Partition  pull down box will be available for selection.




Load The Kernel By


Grub2Win will automatically generate the grub.cfg code for you based on the selections you make in this pull down box. For most OS types there will be a Custom Code option. If you chose the Custom Code option, you will be taken to the Entering custom code screen.



Select Partition UUID (Linux only) if you want Grub to search for the Linux partitions by their UUID. The UUID is a 32 digit hexadecimal number that is unique to every partition. Grub2Win will automatically generate the UUID based on your Root and Boot partition selections above.


Here is a sample UUID    b0fd37fe-ed20-461d-b109-0667ed1cb89b




Select Partition Label (Linux only) if you want Grub to search for the Linux partitions by their labels. Grub2Win will automatically generate the label based on your Root and Boot partition selections above. Only Linux partitions that have valid labels will be available for this option.

See Setting partition labels.




Select Hard Address (Linux only) if you want Grub to load the Linux kernel from a specific Root or Boot partition address selected above. See the note at the bottom of this page.





For Android and Phoenix systems, the program will be automatically select the Kernel File option.  You can change the file name by clicking the Select A New Kernel File button or entering the path manually. If your Android or Phoenix kernel file is on a Linux ext filesystem, you will be given the option to disable NTFS file verification.







Menu Slot

Changes the order of the selections displayed in the Grub boot menu



Click The Icon

Click on the icon image. This takes you to the Change Icon screen where you can set the icon that is displayed at boot time.



Graphics Payload

The graphics mode Grub will establish for the target OS when it is selected for boot.



Pause Seconds

Grub will pause for the specified number of seconds before booting the target OS. This will allow you time to read any messages from Grub, such as incorrect partition address or label name. Set to zero seconds if you don't want Grub to pause. Also sets the $reviewpause variable at boot time.



Hotkey

Use the pulldown arrow to select a hotkey character. It will be used at boot time to select a Grub menu entry. For more information about hotkeys see Hotkeys and Tablet Computers.



Windows Instance (Windows-EFI partitions only)

If you have more than one Windows installation on your computer, this allows you to set the top Windows instance. You can also change the title displayed for each Windows instance at boot time.




Linux Boot Parms

For Linux, Android and Phoenix only.  Grub will pass this parm to the kernel when it loads Linux.


Parms control things like video module blacklisting and the degree of detail displayed on the console. Consult the documentation of your Linux distribution for appropriate parm syntax. The standard parms supplied with Grub2Win should work for the supported Linux distributions in almost every case.


When using chainloader, Linux boot parms are not allowed. In this case, Grub transfers control to either the MBR or another boot manager, not a Linux kernel.



Notes: You may need to add the nomodeset parm with some older video chips to get the graphics to work properly. Installing the latest Linux drivers for your video card may also improve resolution and picture quality. Try downloading Linux drivers from the support site at Nvidia, ATI or the chip manufacturer for your card. Experiment to get the best results.


Android may require specific boot parms to support your hardware. The standard parms should work for most common hardware. For more info on Android see the notes here: Android Notes.



Restore Standard Parms

For  Linux, Android and Phoenix only. This button will only appear if you have modified the standard parms.


Grub2Win supplies standard Linux boot parms that work with most hardware. You may modify these parms to suit your needs. If you wish to restore the parms to standard, click this button.





Note:

When you load the kernel by Hard Address, Grub2Win displays the addresses Linux will probably assign to the disk and partition you have entered.

At boot time, Linux may assign the address differently causing problems.


This depends on your specific Linux distribution and the hardware of your computer.


I recommend you use either Partition UUID or Partition Label to load the kernel. This is much more reliable than using hard partition addresses.














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