Boot from m.2 - Revision history

Mike at 16:55, 9 February 2024

2024-02-09T16:55:00Z

← Older revision		Revision as of 16:55, 9 February 2024
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	To boot from M.2. requires some changes. transfer boot image to m.2. which can be done by restoring the boot image directly<pre>		disk imagesTo boot from M.2. requires some changes. transfer boot image to m.2. which can be done by restoring the boot image directly<pre>
	# dd if=bootimg of=/dev/nvme0 bs=10M status=progress		# dd if=bootimg of=/dev/nvme0 bs=10M status=progress
	</pre>However, this does not allow you to easily change the partition tables, and thus..		</pre>However, this does not allow you to easily change the partition tables, and thus..
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	# (cd /mnt/sys1; tar cvf - * ) \| (cd /mnt/sysimage ; tar xf -)		# (cd /mnt/sys1; tar cvf - * ) \| (cd /mnt/sysimage ; tar xf -)
	</pre>		</pre>having transferred all of the data to the new drive we need to reset the partitions to mount them, this involved setting the uuid on the devices, and mount them using uuid.

Mike at 16:49, 9 February 2024

2024-02-09T16:49:38Z

← Older revision		Revision as of 16:49, 9 February 2024
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	mount up the structure in the way you want.		mount up the structure in the way you want.

	# mkdir -p / /boot /var /home		# mkdir -p /mnt/sysimage/ /mnt/sysimage/boot /mnt/sysimage/var /mnt/sysimage/home

	mount partitions under /mnt/sysimage		mount partitions under /mnt/sysimage
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	- using losetup		- using losetup

			# mkdir -p /mnt/sys1/ /mnt/sys1/boot

	mount partitions under /mnt/sys1		mount partitions under /mnt/sys1

Mike: Created page with "To boot from M.2. requires some changes. transfer boot image to m.2. which can be done by restoring the boot image directly

 # dd if=bootimg of=/dev/nvme0 bs=10M status=progress

However, this does not allow you to easily change the partition tables, and thus.. use fdisk to create the partition table, and mount it up as you want eg.

 Create the following partitions   / 100G /boot 1G /var 100G /home 100G swap 16G  using fdisk.  format each partition using m..."

2024-02-09T16:45:02Z

Created page with "To boot from M.2. requires some changes. transfer boot image to m.2. which can be done by restoring the boot image directly<pre> # dd if=bootimg of=/dev/nvme0 bs=10M status=progress </pre>However, this does not allow you to easily change the partition tables, and thus.. use fdisk to create the partition table, and mount it up as you want eg.<pre> Create the following partitions / 100G /boot 1G /var 100G /home 100G swap 16G using fdisk. format each partition using m..."

New page

To boot from M.2. requires some changes. transfer boot image to m.2. which can be done by restoring the boot image directly<pre>
# dd if=bootimg of=/dev/nvme0 bs=10M status=progress
</pre>However, this does not allow you to easily change the partition tables, and thus..

use fdisk to create the partition table, and mount it up as you want eg.<pre>
Create the following partitions

/ 100G
/boot 1G
/var 100G
/home 100G
swap 16G

using fdisk.

format each partition using mkfs.ext4 for non-swap partitions
format each swap partition using mkswap

mount up the structure in the way you want.

# mkdir -p / /boot /var /home

mount partitions under /mnt/sysimage

mount disk image

- using losetup

mount partitions under /mnt/sys1

Transfer files.

# (cd /mnt/sys1; tar cvf - * ) | (cd /mnt/sysimage ; tar xf -)
</pre>