Part III shows the available non-volatile variables.
These nvram variables are available and usable in ABLE version 2.20 or later. Any variables which are not available on all platforms will be marked as such in their description section.
Each variable is documented in a format similar to the UNIX® manual page layout. The page is separated into several parts:
Name - The name of the variable and its purpose. |
Description - Describes the variable in detail. |
Platforms - This optional section describes the platforms which use the variable is present, if not present the variable is available on all platforms. |
See also - This optional section gives references to other variables which may be relevant. |
Table 9. Alphabetical list of non-volatile variables
Variable | Purpose |
---|---|
boot.auto | Enable auto boot |
boot.cmd | Command line to use for auto boot |
boot.timeout | Time to wait before auto boot |
boot.fs | The filesystems to be scanned by the autoboot command. |
console.write | Default Console output stream |
console.read | Default Console input stream |
console.level | Console logging level |
fb.enable | Framebuffer driver - enable output |
fb.output | Framebuffer driver - output target |
fb.x | Framebuffer driver - Display X size (width) |
fb.y | Framebuffer driver - Display Y size (height) |
fb.refresh | Framebuffer driver - Display refresh frequency |
ide.multi-limit | IDE multiple sector read limit |
shell.hist | Shell history depth |
sys.autoshadow | Whether able will automatically moved into RAM at system start |
sys.speed | System speed set at start time |
usb.enable | USB system enable |
usb.hubdepth | USB system depth hubs should be searched for devices to |
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