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Arcom Embedded Linux Technical Manual RedBoot
Managing images in Flash
Flash is managed under RedBoot using the FIS (Flash Image System) command. This
command has several subcommands that can be used to update the entire Flash from
an image in RAM, or to create and manage images (partitions) within the Flash.
Each FIS partition table entry has the following properties:
Property Description
Name A descriptive name for the image.
Flash Base The offset of the image in Flash.
Memory Base The virtual address of the address in memory that the image
should be loaded to by the fis load command.
Size The total length of the image.
Data Length The length of the data currently stored in the image.
Entry Point The entry point of the image. This is normally equal to the
Flash base (for execute-in-place images) or the memory base.
The following table describes the most commonly used FIS subcommands:
Subcommand Action
init
Initializes the FIS partition table.
list
Lists the current contents of the FIS partition table.
create
Creates a new FIS partition.
load
Loads a partition or other region from Flash into RAM.
lock
Locks a partition or other region (if available in hardware).
unlock
Unlocks a partition or other region (if available in hardware).
write
Writes data from RAM to Flash ignoring the any partitions.
Full documentation of the FIS system can be found in the eCos Reference Manual.
Initializing the FIS partition table
Arcom hardware is shipped with a valid FIS partition table. If you have erased the entire
Flash device or want to reinitialize the partition table, you can use the fis init command.
Examining the FIS partition table
The current Flash partition list can be viewed using the fis list command:
RedBoot> fis list
Name FLASH addr Mem addr Length Entry point
FIS directory 0x00000000 0x00000000 0x0001F000 0x00000000
RedBoot config 0x0001F000 0x0001F000 0x00001000 0x00000000
© 2006 Arcom Issue G 60
- Arcom Embedded Linux 1
- Contents 3
- © 2006 Arcom Issue G 4 4
- Introduction 5
- Licensing AEL components 6
- Handling your board safely 6
- About this manual 7
- Specific terms 8
- Conventions 8
- Typographical conventions 9
- Development Kit CD contents 10
- File system layout 11
- RAM file system 12
- Configuring AEL 13
- © 2006 Arcom Issue G 14 14
- © 2006 Arcom Issue G 15 15
- System startup scripts 16
- Network configuration 17
- © 2006 Arcom Issue G 18 18
- © 2006 Arcom Issue G 19 19
- © 2006 Arcom Issue G 20 20
- Example configuration 21
- Configuring modprobe 22
- Removing kernel modules 22
- Calibrating touchscreens 23
- Secure Shell (SSH) 24
- Using SSH commands 25
- The scp command 26
- The sftp command 26
- Generating keys 27
- Port forwarding 28
- Package management 29
- The X Window System 30
- Developing software for AEL 31
- © 2006 Arcom Issue G 32 32
- © 2006 Arcom Issue G 33 33
- © 2006 Arcom Issue G 34 34
- © 2006 Arcom Issue G 35 35
- Obtaining help 36
- © 2006 Arcom Issue G 37 37
- Building libraries 38
- © 2006 Arcom Issue G 39 39
- Cross compilation example 40
- Installing on the target 41
- © 2006 Arcom Issue G 42 42
- Starting GDB and GDB server 43
- Compiling a kernel 44
- © 2006 Arcom Issue G 45 45
- Building external modules 46
- © 2006 Arcom Issue G 47 47
- © 2006 Arcom Issue G 48 48
- © 2006 Arcom Issue G 49 49
- AIM104-RELAY8/IN8 50
- AIM104-IN16 50
- AIM104-OUT16 50
- AIM104-IO32 51
- AIM104-MULTI-IO 51
- © 2006 Arcom Issue G 52 52
- © 2006 Arcom Issue G 53 53
- © 2006 Arcom Issue G 54 54
- RedBoot 55
- Aliases 56
- Configuring an IP address 56
- Loading images into RAM 57
- © 2006 Arcom Issue G 58 58
- <partition> 59
- Managing images in Flash 60
- © 2006 Arcom Issue G 61 61
- Updating a single FIS image 62
- Unlocking the Flash 62
- Executing an image 63
- © 2006 Arcom Issue G 64 64
- Arcom sales 65
- Technical support 65
- © 2006 Arcom Issue G 66 66
- © 2006 Arcom Issue G 67 67
- © 2006 Arcom Issue G 68 68
- © 2006 Arcom Issue G 69 69
- © 2006 Arcom Issue G 70 70
- © 2006 Arcom Issue G 71 71
- © 2006 Arcom Issue G 72 72
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