[CentOS-announce] CentOS-7 disk images for AArch64 Platforms

[news 28]

We've produced a disk image intended to help hardware vendors and

enthusiasts who are interested in bringing CentOS to their AArch64 based

platform. This allows a vendor to bypass the installer or to edit the

disk image before booting in order to test kernel modules or options. It

is intended for development purposes only, and will only continue

through the alpha and beta test phases.

 

 

 

## Download

 

http://buildlogs.centos.org/centos/7/isos/aarch64/

 

 

## Considerations

 

* This image is 12GB when uncompressed. Please ensure you have enough

free space

 

* The default root password is 'centos'. Please see the readme in the

above directory for the kickstart used to create the image.

 

* You will need to add the appropriate boot information in a UEFI entry

after using this image, since the installer traditionally handles

this.

 

 

## Burning the image to disk

 

You may simply dd this image to disk, however for the sake of ensuring

that it is written correctly, we recommend the following command. Please

replace the image-name and target device with the appropriate values for

your environment.

 

 

```

dd if= of=/dev/sdX bs=2m conv=fsync && sync;

```

 

## Growing the disk image.

 

The root partition of this image was intentionally placed at the end of

the image so that it could be easily grown. A simple command for growing

the image is listed below

 

 

```

sudo sgdisk -e -d4 -n4:0:0 /dev/

```

 

 

## Examining and editing the image

 

The kpartx tool is very handy for manipulating disk images. Some example

commands are below. Please read the documentation for kpartx before you

modify the disk image.

 

 

* kpartx -l CentOS-7-1503-aarch64.img # List partitions in the image

* kpartx -a -v CentOS-7-1503-aarch64.img # Add partition mappings

* mount /dev/mapper/loop1p1 /mnt # mount the first partition to /mnt

* umount /mnt # unmount /mnt, obviously.

* kpartx -d -v CentOS-7-1503-aarch64.img # remove partition mappings

 

 

--

Jim Perrin

The CentOS Project | http://www.centos.org

twitter: ( -at -) BitIntegrity | GPG Key: FA09AD77

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