2.2 Preparing to Install

September 13th, 2025

This assumes that a suitable host for your desired use case class has been prepared and the installation *.iso file has been downloaded.

The two installation methods available are:

• DVD-ROM
• USB memory stick

In both cases you will need to prepare bootable installation media. Simply coping the ISO file to a blank DVD-R or USB memory stick will result in unusable boot media. There are many free tools available for writing bootable media from a *.iso file. Below you will find two examples that we use.

2.2.1 Creating a bootable DVD

1. Download the desired ACHE release from our download page.
2. On a computer running Microsoft Windows 8 or higher, insert a blank DVD-R disc to the optical drive.
3. Right-click the downloaded *.iso file and select Burn disc image.

4. In the disc burning dialogue box, accept any default options (may vary according to versions of Windows), and select a disc verify option if presented withone. Then click Burn.

2.2.2 Creating a bootable USB memory stick (Windows)

1. Download the desired ACHE release from our download page.
2. Download Rufus from https://rufus.ie. This is used to create the bootable USB device and runs without installation, so no administrator rights are required to use it.
3. Insert a USB memory stick of 2GiB or larger to your computer.
4. Open Rufus and click SELECT to select the *.iso file. All th eother fields will be automatically set up for you after making the selection.

5. Click START and Rufus will create the bootable USB device.

2.2.3 Creating a bootable USB memory stick (UNIX/Linux)

1. Download the desired ACHE release from our download page.
2. Insert a USB memory stick.

All data on the memory stick will be destroyed.

3. Open a shell terminal.
4. Using the lsblk command, locate the path of the USB memory stick. There will not by any text to clearly indicate a device is a USB memory stick. Instead, you will be looking for recognisable clues:

• Is the right size.
• Has no mount path on any of it's partitions (or has no partitions).
• Might have a recognisable model name

In this example below, we have found our 8GB device at the bottom of the list.

[root@foobar testUser]# lsblk -o NAME,SIZE,TYPE,VENDOR,MODEL,FSTYPE,MOUNTPOINT NAME SIZE TYPE VENDOR MODEL FSTYPE MOUNTPOINT sda 1.8T disk ATA WDC WD20EZRX-00D └─sda1 1.8T part xfs /shared/backups sdb 5.5T disk ATA WDC WD60EFAX-68J linux_raid_member └─md127 10.9T raid10 └─md127p1 10.9T md xfs /shared/nas sdc 5.5T disk ATA WDC WD60EFAX-68J linux_raid_member └─md127 10.9T raid10 └─md127p1 10.9T md xfs /shared/nas sdd 5.5T disk ATA WDC WD60EFAX-68J linux_raid_member └─md127 10.9T raid10 └─md127p1 10.9T md xfs /shared/nas sde 5.5T disk ATA WDC WD60EFAX-68J linux_raid_member └─md127 10.9T raid10 └─md127p1 10.9T md xfs /shared/nas sdf 232.9G disk ATA WDC WDS250G2B0A ├─sdf1 1G part xfs /boot └─sdf2 231.9G part LVM2_member ├─cl-root 70G lvm xfs / ├─cl-swap 7.4G lvm swap [SWAP] └─cl-home 154.5G lvm xfs /home sdg 7.6G disk

5. Next we format the disk. In our example the disk sdg is blank and has no partitions or file system. However, it could easily have been a used USB device with several branches off of it like sdg1 and sdg2. Use the dd command to quick format the disk.

# dd if=/dev/zero of=/dev/sdg bs=1K count=4096

6. Now create a file system on the disk.

# mkfs.vfat /dev/sdg –I

7. Finally, write the *.iso to the device.

# dd status=progress if=/somePath/ACHE_4.0_008.iso of=/dev/sdg