Question

1

How do I merge two virtual hard disks?

rated 0 times [ 1] [ 0] / answers: 1 / hits: 2850 / 3 Years ago, tue, july 13, 2021, 6:36:27

I am using ubuntu on a virtual machine of disk size of 8 GBs and I was trying to compile kernel to build a module following these steps .

sudo apt-get install build-essential linux-source

cd /usr/src

sudo tar xjvf linux-source-2.6.22.tar.bz2

cd linux-source-2.6.22

sudo cp /boot/config-2.6.22-14-generic .config

sudo make

sudo make modules

but it crashed due to lack of space so I added another virtual hard disk of 8 GBs and I don't know what to do next . I need to do the same exact steps and I am not sure if compiling should be in
/usr/src
but if so I want to merge the extra space from the extra hard disk into this location . Is that possible ?

In other words , I need to connect the two hard disks .

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ithriv

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answered 3 Years ago aclavadoug · Accepted Answer

Format the new drive to ext4 with gparted or any tool you wish.

Then mount the partition at /mnt (or any location you choose)

sudo mount /dev/sbb1 /mnt

sudo chown your_user:your_user /mnt

Then put the kernel source in /mnt

mkdir /mnt/src

tar xjvf linux-source-2.6.22.tar.bz2 -C /mnt/src

Then proceed with your build.

Note: you should run make as follows, it will make the modules.

make -j5

You then use sudo to install

sudo make modules_install

FWIW there are a number of helper scripts, see

Ubuntu Wiki compile kernel

Obviously there are a number of considerations in building a custom kernel, good luck to you.

EDIT: To merge 2 hard drives, use LVM. You will not be able to do LVM as your original install is not to LVM, so mounting the new drive is the best option.