From OpenSCADAWiki
For a "live disk" image on FAT (ALTLinux), everything from superuser: su -
- Connect the target disk and obtain its address: dmesg
- Mount: mkdir /mnt/tmp; mount /dev/sd{x}1 /mnt/tmp
- Unpack the contents of the firmware archive onto the mounted disk: cd /mnt/tmp; tar xvf /var/tmp/LP8x81-ALTLinux6-OpenSCADA_0.9+r2302-i586-plc-rt1-up.flash.tar
- Find out the UUID for the filesystem of the target disk: blkid
- Modify the file "/mnt/tmp/syslinux/syslinux.cfg" at the end of the line "append initrd=alt0/full.cz live ... disk,uuid:4EB3-0478", where it is necessary to set the previously obtained UUID.
- Add or modify the file "/mnt/tmp/syslinux/lang" for specify the locale-language of the interface by default, for Ukrainian — "uk_UA", for Russian — "ru_RU", otherwise it will be English.
- Unmount the disk: umount /dev/sd{x}1
- Initialize the MBR of the disk to the correct value: ms-sys -s /dev/sd{x}
- Initialize the boot loader: syslinux /dev/sd{x}1