Dualbooting - Revision history

Prabuanand: removed more repetitive content

2025-11-28T05:12:39Z

removed more repetitive content

← Older revision		Revision as of 05:12, 28 November 2025
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	It's assumed you have a box where you already run another operating system, and would like to be able to dual boot either the installed system or Alpine Linux.		It's assumed you have a box where you already run another operating system, and would like to be able to dual boot either the installed system or Alpine Linux in [[System Disk Mode]].

	{{Warning\|This Dualboot manual is intended for experienced users. You will have to manually edit partitions on your harddisk. Take adequate backup of important data before proceeding further.}} If you want to avoid partitioing your existing hard disk, it may be better for you to buy an additional disk and use [[Installation#setup-alpine_based_System_Disk_Install\|setup-alpine based Install]], or use [[Tutorials_and_Howtos#Virtualization\|virtualization]].		{{Warning\|This Dualboot manual is intended for experienced users. You will have to manually edit partitions on your harddisk. Take adequate backup of important data before proceeding further.}} If you want to avoid partitioing your existing hard disk, it may be better for you to buy an additional disk and use [[Installation#setup-alpine_based_System_Disk_Install\|setup-alpine based Install]], or use [[Tutorials_and_Howtos#Virtualization\|virtualization]].
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	== Install Alpine Linux ==		== Install Alpine Linux ==

	To ~~Dual boot~~ Alpine Linux, you ~~must follow the~~ [[~~System Disk Mode~~#~~setup-disk based Installation~~\|~~setup-disk based Installation~~]], ~~except~~ for ~~the following points:~~		To Dualboot, Alpine Linux needs a separate partition. If you don't have a partition refer [[Setting_up_disks_manually#Manual partitioning\|manual partitioning]] to create and format it. If you are using [[btrfs]] filesystem, refer [[Install_Alpine_on_a_btrfs_filesystem_with_refind_as_boot_manager\|btrfs tutorial]] for more information.

	# To Dualboot, Alpine Linux needs a separate partition. If you don't have a partition refer [[Setting_up_disks_manually#Manual partitioning\|manual partitioning]] to create and format it. If you are using [[btrfs]] filesystem, refer [[Install_Alpine_on_a_btrfs_filesystem_with_refind_as_boot_manager\|btrfs tutorial]] for more information.
	# Mount the '''/ (root)''' partition i.e partition(here sdXY), where you'd like to install Alpine Linux on a mount point i.e say /mnt. {{Cmd\|# mount /dev/sdXY /mnt}}		# Mount the '''/ (root)''' partition i.e partition(here sdXY), where you'd like to install Alpine Linux on a mount point i.e say /mnt. {{Cmd\|# mount /dev/sdXY /mnt}}
	#:{{Note\| To allow multiple linux installations to co-exist, it is better to keep the /boot folder (where kernel files reside) inside the '''"/" root ''' partition. Following the below instructions will result in: {{cat\|/etc/fstab\|<nowiki>...		#:{{Note\|To allow multiple linux installations to co-exist, it is better to keep the /boot folder (where kernel files reside) inside the '''"/" root ''' partition. Following the below instructions will result in: {{cat\|/etc/fstab\|<nowiki>...
	UUID=ABCD-1234 /boot/efi vfat rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=utf8,shortname=mixed,errors=remount-ro 0 2		UUID=ABCD-1234 /boot/efi vfat rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=utf8,shortname=mixed,errors=remount-ro 0 2
	...</nowiki>}}}}		...</nowiki>}}}}

Prabuanand: removed duplicatd wikilinks

2025-11-28T05:03:53Z

removed duplicatd wikilinks

← Older revision		Revision as of 05:03, 28 November 2025
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	# Identify the correct partition name for ESP partition and mount it on the mount point created in the previous step. {{Cmd\|# mount /dev/sdXY /mnt/boot/efi}}		# Identify the correct partition name for ESP partition and mount it on the mount point created in the previous step. {{Cmd\|# mount /dev/sdXY /mnt/boot/efi}}

	Follow the remaining steps given in [[System Disk Mode#setup-disk based Installation\|setup-disk based Installation]] page to complete the Installation. Refer [[#Configure_bootloader\|configure bootloader]] section, if you would like to change your default ~~[[Bootloaders\|~~bootloader]](Optional).		Follow the remaining steps given in [[System Disk Mode#setup-disk based Installation\|setup-disk based Installation]] page to complete the Installation. Refer [[#Configure_bootloader\|configure bootloader]] section, if you would like to change your default bootloader(Optional).

	== Configure bootloader ==		== Configure bootloader ==

Prabuanand: removed duplicated steps, fixed wikitags

2025-11-28T05:02:33Z

removed duplicated steps, fixed wikitags

← Older revision		Revision as of 05:02, 28 November 2025
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	# If you're using EFI, pay special attention to ESP partition as it might be used by other operating system(s) too. Create a mount point <code>/mnt/boot/efi</code> for the same. {{Cmd\|# mkdir -p /mnt/boot/efi}}		# If you're using EFI, pay special attention to ESP partition as it might be used by other operating system(s) too. Create a mount point <code>/mnt/boot/efi</code> for the same. {{Cmd\|# mkdir -p /mnt/boot/efi}}
	# Identify the correct partition name for ESP partition and mount it on the mount point created in the previous step. {{Cmd\|# mount /dev/sdXY /mnt/boot/efi}}		# Identify the correct partition name for ESP partition and mount it on the mount point created in the previous step. {{Cmd\|# mount /dev/sdXY /mnt/boot/efi}}
	~~# Install Alpine Linux on~~ the ~~chosen partition. {{Cmd\|~~# setup-disk -~~m sys /mnt}}~~
	~~# Your dual boot installation can be considered complete. You be should be able to dual boot once you [[~~Installation~~#Reboot\|reboot~~]].		Follow the remaining steps given in [[System Disk Mode#setup-disk based Installation\|setup-disk based Installation]] page to complete the Installation. Refer [[#Configure_bootloader\|configure bootloader]] section, if you would like to change your default [[Bootloaders\|bootloader]](Optional).
	Refer [[#Configure_bootloader\|configure bootloader]] section, if you would like to change your default [[Bootloaders\|bootloader]](Optional).

	== Configure bootloader ==		== Configure bootloader ==
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	{{Cmd\|# blkid /dev/sdXY}}		{{Cmd\|# blkid /dev/sdXY}}

	Start editing the grub2 configuration		Start editing the grub2 configuration file {{Path\|/etc/grub.d/40_custom}} using your favourite editor to make the the file to look something like this:
	{{~~Cmd~~\|~~# gedit~~ /etc/grub.d/40_custom}}

	~~I edited~~ the file to look something like this:
	{{Cat\|/etc/grub.d/40_custom\|<nowiki>#!/bin/sh		{{Cat\|/etc/grub.d/40_custom\|<nowiki>#!/bin/sh
	echo "Adding Alpine" >&2		echo "Adding Alpine" >&2
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	{{Note\|The root, linux, initrd, and UUID values mentioned above should be replaced with those of your system, e.g. the UUID you got when running the 'blkid' command.}}		{{Note\|The root, linux, initrd, and UUID values mentioned above should be replaced with those of your system, e.g. the UUID you got when running the 'blkid' command.}}
	Finally the configuration changes need to be applied to the grub2 bootloader:		Finally the configuration changes need to be applied to the grub2 bootloader:
	{{Cmd\|update-grub}}		{{Cmd\|# update-grub}}

	Now it's time to test. Reboot your box.		Now it's time to test. Reboot your box.
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	For Windows partitions to be detected with grub, you need `os-prober` and `grub-mount` installed at the time grub-mkconfig runs.		For Windows partitions to be detected with grub, you need `os-prober` and `grub-mount` installed at the time grub-mkconfig runs.

	{{~~Note~~\| The following needs to be tested}}		{{Todo\| The following needs to be tested}}

	To upgrade the grub installation, the efi directory must be mounted in /boot/efi/.		To upgrade the grub installation, the efi directory must be mounted in /boot/efi/.
	To know in which partition the efi is, we must examine the partition table, so if your main disk is /dev/sda then.		To know in which partition the efi is, we must examine the partition table, so if your main disk is /dev/sda then.

Prabuanand: updated wikilinks and minor rewording

2025-10-31T16:14:30Z

updated wikilinks and minor rewording

Prabuanand: moved the mount point reasoning from Bootloaders page

2024-12-21T13:42:36Z

moved the mount point reasoning from Bootloaders page

← Older revision		Revision as of 13:42, 21 December 2024
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	{{Warning\|This Dualboot manual is intended for experienced users. You will have to manually edit partitions on your harddisk. Take adequate backup of important data before proceeding further.		{{Warning\|This Dualboot manual is intended for experienced users. You will have to manually edit partitions on your harddisk. Take adequate backup of important data before proceeding further.
	If you want to avoid partitioing your existing hard disk, it may be better for you to buy an additional disk and use [[Installation#setup-alpine_based_System_Disk_Install\|setup-alpine based Install]], or use [[Tutorials_and_Howtos#Virtualization\|virtualization]]}}		If you want to avoid partitioing your existing hard disk, it may be better for you to buy an additional disk and use [[Installation#setup-alpine_based_System_Disk_Install\|setup-alpine based Install]], or use [[Tutorials_and_Howtos#Virtualization\|virtualization]]}}

	== Install Alpine Linux ==		== Install Alpine Linux ==

	To Dual boot Alpine Linux, you must follow the [[Setting_up_disks_manually#setup-disk based Installation\|setup-disk based Installation]], except for the following points:		To Dual boot Alpine Linux, you must follow the [[Setting_up_disks_manually#setup-disk based Installation\|setup-disk based Installation]], except for the following points:

	# To Dualboot, Alpine Linux needs a separate partition. If you don't have a partition refer [[Setting_up_disks_manually#Manual partitioning\|~~Manual~~ partitioning]] to create and format it. If you are using [[btrfs]] filesystem, there is no need to create a partition~~. Refer~~ [[Install_Alpine_on_a_btrfs_filesystem_with_refind_as_boot_manager\|btrfs tutorial]]		# To Dualboot, Alpine Linux needs a separate partition. If you don't have a partition refer [[Setting_up_disks_manually#Manual partitioning\|manual partitioning]] to create and format it. If you are using [[btrfs]] filesystem, there is no need to create a partition and refer [[Install_Alpine_on_a_btrfs_filesystem_with_refind_as_boot_manager\|btrfs tutorial]] for more information.
	# Mount the '''/ (root)''' partition i.e partition(here sdXY), where you'd like to install Alpine Linux on a mount point i.e say /mnt. {{Cmd\|# mount /dev/sdXY /mnt}}		# Mount the '''/ (root)''' partition i.e partition(here sdXY), where you'd like to install Alpine Linux on a mount point i.e say /mnt. {{Cmd\|# mount /dev/sdXY /mnt}}
			#:{{Note\| To allow multiple linux installations to co-exist, it is better to keep the /boot folder (where kernel files reside) inside the '''"/" root ''' partition. Following the below instructions will result in: {{cat\|/etc/fstab\|<nowiki>...
			UUID=ABCD-1234 /boot/efi vfat rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=utf8,shortname=mixed,errors=remount-ro 0 2
			...</nowiki>}}}}
	# If you're using EFI, pay special attention to ESP partition. ESP partition is also used by other operating systems. Make sure you create a mount point <code>/mnt/boot/efi</code>. {{Cmd\|# mkdir -p /mnt/boot/efi}}		# If you're using EFI, pay special attention to ESP partition. ESP partition is also used by other operating systems. Make sure you create a mount point <code>/mnt/boot/efi</code>. {{Cmd\|# mkdir -p /mnt/boot/efi}}
	# Identify the correct partition name for ESP partition and mount it on the above mount point. {{Cmd\|# mount /dev/sdXY /mnt/boot/efi}}		# Identify the correct partition name for ESP partition and mount it on the above mount point. {{Cmd\|# mount /dev/sdXY /mnt/boot/efi}}

Prabuanand: rephrased to add clarity on / partition

2024-12-16T10:38:33Z

rephrased to add clarity on / partition

← Older revision		Revision as of 10:38, 16 December 2024
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	# To Dualboot, Alpine Linux needs a separate partition. If you don't have a partition refer [[Setting_up_disks_manually#Manual partitioning\|Manual partitioning]] to create and format it. If you are using [[btrfs]] filesystem, there is no need to create a partition. Refer [[Install_Alpine_on_a_btrfs_filesystem_with_refind_as_boot_manager\|btrfs tutorial]]		# To Dualboot, Alpine Linux needs a separate partition. If you don't have a partition refer [[Setting_up_disks_manually#Manual partitioning\|Manual partitioning]] to create and format it. If you are using [[btrfs]] filesystem, there is no need to create a partition. Refer [[Install_Alpine_on_a_btrfs_filesystem_with_refind_as_boot_manager\|btrfs tutorial]]
	# In the ~~[[Setting_up_disks_manually#setup-disk based Installation\|instructions]]~~ '''/ (root)''' partition ~~is the~~ partition(here sdXY), where you'd like to install Alpine Linux. {{Cmd\|# mount /dev/sdXY /mnt}}		# Mount the '''/ (root)''' partition i.e partition(here sdXY), where you'd like to install Alpine Linux on a mount point i.e say /mnt. {{Cmd\|# mount /dev/sdXY /mnt}}
	# If you're using EFI, pay special attention to ESP partition. ESP partition is also used by other operating systems. Make sure you create a mount point <code>/mnt/boot/efi</code>. {{Cmd\|# mkdir -p /mnt/boot/efi}}		# If you're using EFI, pay special attention to ESP partition. ESP partition is also used by other operating systems. Make sure you create a mount point <code>/mnt/boot/efi</code>. {{Cmd\|# mkdir -p /mnt/boot/efi}}
	# Identify the correct partition name for ESP partition and mount it on the above mount point. {{Cmd\|# mount /dev/sdXY /mnt/boot/efi}}		# Identify the correct partition name for ESP partition and mount it on the above mount point. {{Cmd\|# mount /dev/sdXY /mnt/boot/efi}}
	# Install Alpine Linux on the chosen partition. {{Cmd\|# setup-disk -m sys /mnt}}		# Install Alpine Linux on the chosen partition. {{Cmd\|# setup-disk -m sys /mnt}}
	# Your dual boot installation can be considered complete. You be should be able to dual boot once you [[Installation#Reboot\|reboot]].		# Your dual boot installation can be considered complete. You be should be able to dual boot once you [[Installation#Reboot\|reboot]].
	Refer [[#Configure_bootloader\|configure bootloader]] section, if you would like to change your default [[Bootloaders\|bootloader]](Optional).		Refer [[#Configure_bootloader\|configure bootloader]] section, if you would like to change your default [[Bootloaders\|bootloader]](Optional).

	== Configure bootloader ==		== Configure bootloader ==

Prabuanand: Highlighted the differences between regular installation and dualboot

2024-12-16T10:25:42Z

Highlighted the differences between regular installation and dualboot

Prabuanand: added link to Setting_up_disks_manually#Mounting_on_/dev/sdXY_sysroot_failed

2024-12-16T09:58:56Z

added link to Setting_up_disks_manually#Mounting_on_/dev/sdXY_sysroot_failed

← Older revision		Revision as of 09:58, 16 December 2024
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	Otherwise, one may adjust the bootloader that has already been installed by the other operating system.		Otherwise, one may adjust the bootloader that has already been installed by the other operating system.

	=== Dual/Multiboot with Linux ===		=== Dual or Multiboot with Linux ===
	The following example is given to give you some ideas for adjusting [[Bootloaders#GRUB\|grub]] to boot Alpine.		The following example is given to give you some ideas for adjusting [[Bootloaders#GRUB\|grub]] to boot Alpine.

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	After grub re-installation, unmount efi partition:		After grub re-installation, unmount efi partition:
	{{Cmd\|# umount /boot/efi/}}		{{Cmd\|# umount /boot/efi/}}

			== Troubleshooting ==

			Check [[Setting_up_disks_manually#Mounting_on_/dev/sdXY_sysroot_failed\|Mounting on /dev/sdXY sysroot failed]] if encountered.

	== References ==		== References ==

Prabuanand: simplified the steps to align with setup-disk based Installation

2024-11-05T11:24:38Z

simplified the steps to align with setup-disk based Installation

@@ Line 1: / Line 1: @@
 {{Warning|This Dualboot manual is intended for experienced users. You will have to manually edit partitions on your harddisk. Take adequate backup of important data before proceeding further.
-If you want to avoid partitioing your existing hard disk, it may be better for you to buy an additional disk, or use [[Tutorials_and_Howtos#Virtualization|virtualization]]}}
+If you want to avoid partitioing your existing hard disk, it may be better for you to buy an additional disk and use [[Installation#setup-alpine_based_System_Disk_Install|setup-alpine based Install]], or use [[Tutorials_and_Howtos#Virtualization|virtualization]]}}
 == Install Alpine Linux ==
-}}
+To Dual boot Alpine Linux, you must follow the [[Setting_up_disks_manually#setup-disk based Installation|setup-disk based Installation]].
---->
+# Follow the [[Installation#General_course_of_action|Installation guide]] to complete the [[#Base_configuration|base configuration]], if not already done.
-=== Configure bootloader ===
+== Configure bootloader ==
 There are different [[Bootloaders|bootloaders]] to get a boot menu that allows selecting the operating system to boot. It is easiest to simply install and use [[Bootloaders#rEFInd|rEFInd]] boot manager for dual boot between Alpine Linux and Windows.
@@ Line 82: / Line 19: @@
 Otherwise, one may adjust the bootloader that has already been installed by the other operating system.
-==== Dual/Multiboot with Linux ====
+=== Dual/Multiboot with Linux ===
 The following example is given to give you some ideas for adjusting [[Bootloaders#GRUB|grub]] to boot Alpine.
@@ Line 112: / Line 49: @@
 {{Note|You might need to press SHIFT when booting your box in order to see the grub-menu.}}
-==== Dualboot with Windows ====
+=== Dualboot with Windows ===
 For Windows partitions to be detected with grub, you need `os-prober` and `grub-mount` installed at the time grub-mkconfig runs.

Prabuanand: rephrased the sentence

2024-09-17T15:10:43Z

rephrased the sentence

← Older revision		Revision as of 15:10, 17 September 2024
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	{{Cmd\|# mount /dev/esp /mnt/boot/efi}}		{{Cmd\|# mount /dev/esp /mnt/boot/efi}}

	=== ~~Complete~~ Alpine Linux ~~Installation~~ ===		=== Install Alpine Linux ===

	Follow the [[Setting_up_disks_manually#Custom_Layout\|~~Hard Disk Installation using~~ custom Layout]] to install Alpine Linux on the chosen partition.		Follow the [[Setting_up_disks_manually#Custom_Layout\|custom Layout based Installation ]] to install Alpine Linux on the chosen partition.

	{{Cmd\|# setup-disk -m sys /mnt}}		{{Cmd\|# setup-disk -m sys /mnt}}

	Your dual boot installation can be considered complete. You be should be able to dual boot once you [[Installation#Reboot\|reboot]]. Refer [[#Configure_bootloader\|configure bootloader]] section, if you would like to make changes.		Your dual boot installation can be considered complete. You be should be able to dual boot once you [[Installation#Reboot\|reboot]]. Refer [[#Configure_bootloader\|configure bootloader]] section, if you would like to make additional changes.

	<!--		<!--

← Older revision		Revision as of 10:38, 16 December 2024
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	# To Dualboot, Alpine Linux needs a separate partition. If you don't have a partition refer [[Setting_up_disks_manually#Manual partitioning\|Manual partitioning]] to create and format it. If you are using [[btrfs]] filesystem, there is no need to create a partition. Refer [[Install_Alpine_on_a_btrfs_filesystem_with_refind_as_boot_manager\|btrfs tutorial]]		# To Dualboot, Alpine Linux needs a separate partition. If you don't have a partition refer [[Setting_up_disks_manually#Manual partitioning\|Manual partitioning]] to create and format it. If you are using [[btrfs]] filesystem, there is no need to create a partition. Refer [[Install_Alpine_on_a_btrfs_filesystem_with_refind_as_boot_manager\|btrfs tutorial]]
	# In the ~~[[Setting_up_disks_manually#setup-disk based Installation\|instructions]]~~ '''/ (root)''' partition ~~is the~~ partition(here sdXY), where you'd like to install Alpine Linux. {{Cmd\|# mount /dev/sdXY /mnt}}		# Mount the '''/ (root)''' partition i.e partition(here sdXY), where you'd like to install Alpine Linux on a mount point i.e say /mnt. {{Cmd\|# mount /dev/sdXY /mnt}}
	# If you're using EFI, pay special attention to ESP partition. ESP partition is also used by other operating systems. Make sure you create a mount point <code>/mnt/boot/efi</code>. {{Cmd\|# mkdir -p /mnt/boot/efi}}		# If you're using EFI, pay special attention to ESP partition. ESP partition is also used by other operating systems. Make sure you create a mount point <code>/mnt/boot/efi</code>. {{Cmd\|# mkdir -p /mnt/boot/efi}}
	# Identify the correct partition name for ESP partition and mount it on the above mount point. {{Cmd\|# mount /dev/sdXY /mnt/boot/efi}}		# Identify the correct partition name for ESP partition and mount it on the above mount point. {{Cmd\|# mount /dev/sdXY /mnt/boot/efi}}
	# Install Alpine Linux on the chosen partition. {{Cmd\|# setup-disk -m sys /mnt}}		# Install Alpine Linux on the chosen partition. {{Cmd\|# setup-disk -m sys /mnt}}
	# Your dual boot installation can be considered complete. You be should be able to dual boot once you [[Installation#Reboot\|reboot]].		# Your dual boot installation can be considered complete. You be should be able to dual boot once you [[Installation#Reboot\|reboot]].
	Refer [[#Configure_bootloader\|configure bootloader]] section, if you would like to change your default [[Bootloaders\|bootloader]](Optional).		Refer [[#Configure_bootloader\|configure bootloader]] section, if you would like to change your default [[Bootloaders\|bootloader]](Optional).

	== Configure bootloader ==		== Configure bootloader ==

← Older revision		Revision as of 16:14, 31 October 2025
Line 1:		Line 1:
	It's assumed you have a box where you already run another operating system, and would like to be able to dual boot either the installed system or Alpine Linux.		It's assumed you have a box where you already run another operating system, and would like to be able to dual boot either the installed system or Alpine Linux.

	{{Warning\|This Dualboot manual is intended for experienced users. You will have to manually edit partitions on your harddisk. Take adequate backup of important data before proceeding further.		{{Warning\|This Dualboot manual is intended for experienced users. You will have to manually edit partitions on your harddisk. Take adequate backup of important data before proceeding further.}} If you want to avoid partitioing your existing hard disk, it may be better for you to buy an additional disk and use [[Installation#setup-alpine_based_System_Disk_Install\|setup-alpine based Install]], or use [[Tutorials_and_Howtos#Virtualization\|virtualization]].
	If you want to avoid partitioing your existing hard disk, it may be better for you to buy an additional disk and use [[Installation#setup-alpine_based_System_Disk_Install\|setup-alpine based Install]], or use [[Tutorials_and_Howtos#Virtualization\|virtualization]]}}
	== Install Alpine Linux ==		== Install Alpine Linux ==

	To Dual boot Alpine Linux, you must follow the [[~~Setting_up_disks_manually~~#setup-disk based Installation\|setup-disk based Installation]], except for the following points:		To Dual boot Alpine Linux, you must follow the [[System Disk Mode#setup-disk based Installation\|setup-disk based Installation]], except for the following points:

	# To Dualboot, Alpine Linux needs a separate partition. If you don't have a partition refer [[Setting_up_disks_manually#Manual partitioning\|manual partitioning]] to create and format it. If you are using [[btrfs]] filesystem, ~~there is no need to create a partition and~~ refer [[Install_Alpine_on_a_btrfs_filesystem_with_refind_as_boot_manager\|btrfs tutorial]] for more information.		# To Dualboot, Alpine Linux needs a separate partition. If you don't have a partition refer [[Setting_up_disks_manually#Manual partitioning\|manual partitioning]] to create and format it. If you are using [[btrfs]] filesystem, refer [[Install_Alpine_on_a_btrfs_filesystem_with_refind_as_boot_manager\|btrfs tutorial]] for more information.
	# Mount the '''/ (root)''' partition i.e partition(here sdXY), where you'd like to install Alpine Linux on a mount point i.e say /mnt. {{Cmd\|# mount /dev/sdXY /mnt}}		# Mount the '''/ (root)''' partition i.e partition(here sdXY), where you'd like to install Alpine Linux on a mount point i.e say /mnt. {{Cmd\|# mount /dev/sdXY /mnt}}
	#:{{Note\| To allow multiple linux installations to co-exist, it is better to keep the /boot folder (where kernel files reside) inside the '''"/" root ''' partition. Following the below instructions will result in: {{cat\|/etc/fstab\|<nowiki>...		#:{{Note\| To allow multiple linux installations to co-exist, it is better to keep the /boot folder (where kernel files reside) inside the '''"/" root ''' partition. Following the below instructions will result in: {{cat\|/etc/fstab\|<nowiki>...
	UUID=ABCD-1234 /boot/efi vfat rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=utf8,shortname=mixed,errors=remount-ro 0 2		UUID=ABCD-1234 /boot/efi vfat rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=utf8,shortname=mixed,errors=remount-ro 0 2
	...</nowiki>}}}}		...</nowiki>}}}}
	# If you're using EFI, pay special attention to ESP partition~~. ESP partition is also~~ used by other operating ~~systems~~. ~~Make sure you create~~ a mount point <code>/mnt/boot/efi</code>. {{Cmd\|# mkdir -p /mnt/boot/efi}}		# If you're using EFI, pay special attention to ESP partition as it might be used by other operating system(s) too. Create a mount point <code>/mnt/boot/efi</code> for the same. {{Cmd\|# mkdir -p /mnt/boot/efi}}
	# Identify the correct partition name for ESP partition and mount it on the ~~above~~ mount point. {{Cmd\|# mount /dev/sdXY /mnt/boot/efi}}		# Identify the correct partition name for ESP partition and mount it on the mount point created in the previous step. {{Cmd\|# mount /dev/sdXY /mnt/boot/efi}}
	# Install Alpine Linux on the chosen partition. {{Cmd\|# setup-disk -m sys /mnt}}		# Install Alpine Linux on the chosen partition. {{Cmd\|# setup-disk -m sys /mnt}}
	# Your dual boot installation can be considered complete. You be should be able to dual boot once you [[Installation#Reboot\|reboot]].		# Your dual boot installation can be considered complete. You be should be able to dual boot once you [[Installation#Reboot\|reboot]].
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	=== Dual or Multiboot with Linux ===		=== Dual or Multiboot with Linux ===

	The following example is given to give you some ideas for adjusting [[Bootloaders#GRUB\|grub]] to boot Alpine.		The following example is given to give you some ideas for adjusting [[Bootloaders#GRUB\|grub]] to boot Alpine.

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	=== Dualboot with Windows ===		=== Dualboot with Windows ===

	For Windows partitions to be detected with grub, you need `os-prober` and `grub-mount` installed at the time grub-mkconfig runs.		For Windows partitions to be detected with grub, you need `os-prober` and `grub-mount` installed at the time grub-mkconfig runs.

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	== Troubleshooting ==		== Troubleshooting ==

	Check [[~~Setting_up_disks_manually~~#Mounting_on_/dev/sdXY_sysroot_failed\|Mounting on /dev/sdXY sysroot failed]] ~~if encountered~~.		Check [[System Disk Mode#Troubleshooting\|Troubleshooting]] page, if you encounter errors like [[System Disk Mode#Mounting_on_/dev/sdXY_sysroot_failed\|Mounting on /dev/sdXY sysroot failed]].

	== References ==		== References ==

	* [https://brittanymitchell.co/index.php/2024/03/06/dual-boot-windows-11-and-alpine-linux-part-2/ Dual Boot Windows 11 and Alpine Linux]		* [https://brittanymitchell.co/index.php/2024/03/06/dual-boot-windows-11-and-alpine-linux-part-2/ Dual Boot Windows 11 and Alpine Linux]
	* [https://unix.stackexchange.com/questions/405472/cannot-find-efi-directory-issue-with-grub-install/679800#679800 Mount EFI]		* [https://unix.stackexchange.com/questions/405472/cannot-find-efi-directory-issue-with-grub-install/679800#679800 Mount EFI]

← Older revision		Revision as of 10:25, 16 December 2024
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	It's assumed you have a box where you already run another operating system, and would like to be able to dual boot either the installed system or Alpine Linux.		It's assumed you have a box where you already run another operating system, and would like to be able to dual boot either the installed system or Alpine Linux.

	{{Warning\|This Dualboot manual is intended for experienced users. You will have to manually edit partitions on your harddisk. Take adequate backup of important data before proceeding further.		{{Warning\|This Dualboot manual is intended for experienced users. You will have to manually edit partitions on your harddisk. Take adequate backup of important data before proceeding further.
	If you want to avoid partitioing your existing hard disk, it may be better for you to buy an additional disk and use [[Installation#setup-alpine_based_System_Disk_Install\|setup-alpine based Install]], or use [[Tutorials_and_Howtos#Virtualization\|virtualization]]}}		If you want to avoid partitioing your existing hard disk, it may be better for you to buy an additional disk and use [[Installation#setup-alpine_based_System_Disk_Install\|setup-alpine based Install]], or use [[Tutorials_and_Howtos#Virtualization\|virtualization]]}}

	== Install Alpine Linux ==		== Install Alpine Linux ==

	To Dual boot Alpine Linux, you must follow the [[Setting_up_disks_manually#setup-disk based Installation\|setup-disk based Installation]].		To Dual boot Alpine Linux, you must follow the [[Setting_up_disks_manually#setup-disk based Installation\|setup-disk based Installation]], except for the following points:
	~~# Follow the [[Installation#General_course_of_action\|Installation guide]] to complete the [[#Base_configuration\|base configuration]], if not already done.~~
	# To Dualboot, Alpine Linux needs a separate partition. If you don't have a partition refer [[Setting_up_disks_manually#Manual partitioning\|Manual partitioning]] to create and format it. If you are using [[btrfs]] filesystem, there is no need to create a partition. Refer [[Install_Alpine_on_a_btrfs_filesystem_with_refind_as_boot_manager\|btrfs tutorial]]		# To Dualboot, Alpine Linux needs a separate partition. If you don't have a partition refer [[Setting_up_disks_manually#Manual partitioning\|Manual partitioning]] to create and format it. If you are using [[btrfs]] filesystem, there is no need to create a partition. Refer [[Install_Alpine_on_a_btrfs_filesystem_with_refind_as_boot_manager\|btrfs tutorial]]
	# ~~Mount~~ the partition, where you'd like to install Alpine Linux. {{Cmd\|# mount /dev/sdXY /mnt}}		# In the [[Setting_up_disks_manually#setup-disk based Installation\|instructions]] '''/ (root)''' partition is the partition(here sdXY), where you'd like to install Alpine Linux. {{Cmd\|# mount /dev/sdXY /mnt}}
	# If you're using EFI, pay special attention to ESP partition. ESP partition is also used by other operating systems. Make sure you create a mount point <code>/mnt/boot/efi</code>. {{Cmd\|# mkdir -p /mnt/boot/efi}}		# If you're using EFI, pay special attention to ESP partition. ESP partition is also used by other operating systems. Make sure you create a mount point <code>/mnt/boot/efi</code>. {{Cmd\|# mkdir -p /mnt/boot/efi}}
	# ~~Find~~ the correct partition name for ESP partition and mount it on the above mount point: {{Cmd\|# mount /dev/sdXY /mnt/boot/efi}}		# Identify the correct partition name for ESP partition and mount it on the above mount point. {{Cmd\|# mount /dev/sdXY /mnt/boot/efi}}
	# Install Alpine Linux on the chosen partition. {{Cmd\|# setup-disk -m sys /mnt}}		# Install Alpine Linux on the chosen partition. {{Cmd\|# setup-disk -m sys /mnt}}
	# Your dual boot installation can be considered complete. You be should be able to dual boot once you [[Installation#Reboot\|reboot]]. Refer [[#Configure_bootloader\|configure bootloader]] section, if you would like to ~~make additional changes~~.		# Your dual boot installation can be considered complete. You be should be able to dual boot once you [[Installation#Reboot\|reboot]].
			Refer [[#Configure_bootloader\|configure bootloader]] section, if you would like to change your default [[Bootloaders\|bootloader]](Optional).

	== Configure bootloader ==		== Configure bootloader ==