Using ULFS Desktop Demo Live CD/DVD (or Live USB)

Using ULFS Desktop Demo Live CD/DVD (or Live USB)
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If you wish to install base from prebuilt image follow next steps:

Get "root" user access with "su" command.
```
su
```
Create DOS partition table and bootable ext4 partition with "gparted" or "fdisk" commands:
```
gparted /dev/sda
```
or
```
fdisk /dev/sda
```
Ext4 partition should be bigger than 35GB because Live DVD store data in compressed format. Fdisk output have to be like this one:
```
Disk /dev/sda: 40 GiB, 42949672960 bytes, 83886080 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x17f5438f

Device     Boot Start      End  Sectors Size Id Type
/dev/sda1  *     2048 83886079 83884032  40G 83 Linux
```
Swap parition can be placed on same hard disk on physical computers. On virtual machines swap partition can be placed on another drive to reduce drive backup image size.
Format bootable ext4 partition to use it as root partition
```
mkfs.ext4 /dev/sda1
```
Make "cdrom" and "tmp" directories for using as mount points for Live DVD and root partition.
```
mkdir /mnt/tmp
mkdir /mnt/cdrom
```
Mount Live DVD and root partition in proper mount points.
```
mount /dev/sda1 /mnt/tmp
mount /dev/sr0 /mnt/tmp
```

Go to system root directory and copy folders recursively to root partition.

cd /
cp -r --preserve=all {bin,home,lib64,srv,var,etc,lib,opt,root,sbin,usr} /mnt/tmp

Go to root partition mount point and create empty folders in order to system pseudo filesystems mounting in boot time.
```
cd /mnt/tmp
mkdir {dev,mnt,proc,run,tmp,boot,boot/grub,media,sys}
```

Copy kernel image from Live DVD.

cp /mnt/cdrom/linux/boot/vmlinuz /mnt/tmp/boot

Create GRUB2 configuration file

cat > /mnt/tmp/boot/grub/grub.cfg << "EOF"
# Begin /boot/grub/grub.cfg
set default=0
set timeout=5

insmod ext2
set root=(hd0,1)

menuentry "Umvirt Linux From Scratch 0.1" {
                insmod gzio
                insmod part_msdos
        linux   /boot/vmlinuz root=/dev/sda1 rootfstype=ext4 ro 
}
# End /boot/grub/grub.cfg
EOF

Create partition mounting config file

cat > /mnt/tmp/etc/fstab << "EOF"
# Begin /etc/fstab

# file system  mount-point  type     options             dump  fsck
#                                                              order
/dev/sda1     /            ext4    defaults            1     1
#/dev/sda2     swap         swap     pri=1               0     0

# End /etc/fstab
EOF

Install boot loader

grub-install --boot-directory=/mnt/tmp/boot /dev/sda

Set hostname

echo "ulfs-desktop" > /mnt/tmp/etc/hostname

Unmount root partition
```
umount /dev/sda1
```

Check installation with Qemu

qemu-img -hda /dev/sda -m 512 -enable-kvm

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