This guide describes installation of ROSA 2012.1 Fresh but most of its parts equally apply to ROSA 2012 LTS, ROSA 2011, with only differences in appearance

Here we describe the most common way of ROSA installation - using iso image burnt to DVD or USB stick. For alternative ways of trying ROSA, you can refer to the following pages:

ROSA is an operating system aimed to be as close to users as possible. That's why its installation process is very simple: you should just download installation file, write it on some media (CD or flash), reboot the system and launch the installation wizard. To make working with the wizard even more easier, we have prepared this step-by-step guide.


Preparing bootable flash drive

If you want to prepare a bootable flash drive using ROSA ISO image, you can do this in either graphical or text mode.

Graphical mode

To prepare a bootable drive in graphical mode, we recommend to use ROSA Image Writer. If you are running ROSA Dekstop you can simply install the rosa-imagewriter package from its repositories. For other systems the program is available by the following links:

Unmount flash device before writing to it; ROSA Image Writer will try to do this automatically, but may fail in some systems

In the upper field select the image file by clicking the open file button; in Linux you may simply drag and drop the iso file from file manager into the application window. In the drop-down box at the bottom of the window select the device where the image should be written to. To write the image, press the Write button in the lower right corner.

Text mode

In order to prepare a bootable flash drive in text mode, use dd_rescue from root (install before dd_rescue package):

dd_rescue ROSA.iso /dev/sdb

Also you may use dd utility (available in Linux only) with bs=1MB option, such as:

dd if=ROSA.iso of=/dev/sdb bs=1MB

where ROSA.iso - is an iso image you have downloaded and /dev/sdb - is a path to flash drive device. You can know this device name by examining output of the following command:

df -h

Installing ROSA

Novice users are often confused by the disk partitioning. Unlike Windows where a single large partition is enough, Linux can require more complex partitioning in some situations. Though it is possible to install Linux on a single partition, as well, it is recommended to have at least separate swap and root partitions (the latter is designated as /). But how much space should every of this partitions occupy? There is no single solution for this, but below we'll provide you with recommended numbers for ROSA.
For the most purposes, two partitions are enough:
1. A root partition (/) for the core system - approx. 15 Gb. Choose either ext3 or ext4 type for this partition. Ext4 should be faster in some situations, though there are some aspects that are out of scope of this guide.
2. A swap space - often set to the size of your RAM.

The main partition should be marked as "Boot".

You can also create a separate home partition where all your personal data (documents, photos, etc.) will be stored. This is not necessary; you may for example use Windows partitions for these purposes. If you don't create a separate partition then a special folder called 'home' will be created in the partition where the main part of the system is installed. In our example, we will use the default pasrtitioning.

Now you should have two partitions.

Press the "Mount point" button.

NTFS notes

to avoid the "Welcome to emergency mode" error of non-booting system, DO NOT ADD any NTFS partitions during the installation (disk partitioning step). All NTFS partitions will be available automatically after rebooting through any graphical filemaneger (Dolphin etc).

For more details see bug 302

Users who wish to manipulate the NTFS partitions from console or mc, should use the UUIDs:

example of blkid output (from root)

/dev/sda1: UUID="8e51b8f5-d2c8-47cd-9313-bb10fade148d" TYPE="ext3" 
/dev/sda2: UUID="acde421c-afaf-4c87-b3df-e858e18a6ab2" TYPE="ext3" 
/dev/sda5: UUID="30c57adf-c634-40ca-b489-3e2fd0c3b1f4" TYPE="swap" 
/dev/sda6: UUID="0ffbbb1f-4e4f-4867-809f-7dfe11598769" TYPE="ext3" 
/dev/sdb1: UUID="4A5C879D5C878285" TYPE="ntfs" 
/dev/sdb2: UUID="35dcede3-0c9a-4ea7-b35f-b2ef956696d3" TYPE="ext4" 
/dev/sdb3: UUID="eecf597f-c738-4059-bd99-3310081f24f8" TYPE="reiserfs"

The 'TYPE="ntfs"' string contains the NTFS partition UUID.

UUID=7258CB9858CB598D /media/win ntfs rw,auto,users,exec,nls=utf8,umask=003,gid=46,uid=1000    0   2

See also: Errata.

Do not choose to install bootloader to a boot record of partition (/dev/sda1, /dev/sda2, etc.). You should only choose MBR of the physical drive, such as /dev/sda!!!
Do not eject the flash drive until the system is rebooted!!!