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- SSSSGGGGIIIIKKKKOOOOPPPPTTTT((((2222)))) SSSSGGGGIIIIKKKKOOOOPPPPTTTT((((2222))))
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- NNNNAAAAMMMMEEEE
- sgikopt - retrieve kernel option strings
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- FFFFOOOORRRRTTTTRRRRAAAANNNN SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
- iiiinnnntttteeeeggggeeeerrrr ****4444 ffffuuuunnnnccccttttiiiioooonnnn ssssggggiiiikkkkoooopppptttt ((((ooooppppttttiiiioooonnnn,,,, bbbbuuuuffff,,,, bbbbuuuufffflllleeeennnn))))
- cccchhhhaaaarrrraaaacccctttteeeerrrr **** ((((****)))) ooooppppttttiiiioooonnnn
- cccchhhhaaaarrrraaaacccctttteeeerrrr **** ((((****)))) bbbbuuuuffff
- iiiinnnntttteeeeggggeeeerrrr ****4444 bbbbuuuufffflllleeeennnn
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- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- The IRIX kernel saves most of the IRIS PROM Monitor environment variables
- (option strings) for later use by the kernel as well as user programs.
- _s_g_i_k_o_p_t allows the user to retrieve the values of these variables. The
- _o_p_t_i_o_n argument specifies the name of the variable; the value of the
- option is returned in the buffer addressed by _b_u_f. The size in bytes of
- this buffer is given by _b_u_f_l_e_n. The string returned by _s_g_i_k_o_p_t is
- guaranteed to be null-terminated, even if the length of the option value
- string exceeds _b_u_f_l_e_n.
-
- The environment variables recognized by _s_g_i_k_o_p_t are as follows:
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- bootfile The name of the file to use for autobooting.
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- bootmode The type of boot performed: mmmm to enter the PROM Monitor
- after clearing memory, dddd to enter the PROM Monitor without
- clearing memory, or cccc to perform an autoboot using the
- bootfile.
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- console The console to use: gggg for graphics console, GGGG for
- graphics console with logo, or dddd for serial terminal port
- 1.
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- diskless If this variable is set, the system expects to mount it's
- root filesystem via NFS from a server. It may be set even
- if a local disk is installed, in which case the local root
- disk is ignored.
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- dllogin When _d_i_s_k_l_e_s_s is set, this is the login name to use during
- installation on a diskless machine. See _c_l__i_n_i_t(1m) for
- more information.
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- dlserver When _d_i_s_k_l_e_s_s is set, this is the hostname of the machine
- from which the root filesystem will be mounted. It should
- be set in standard IP address format.
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- gfx An variable indicating if graphics state: aaaalllliiiivvvveeee or ddddeeeeaaaadddd....
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- hostname The Internet host name string.
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- PPPPaaaaggggeeee 1111
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- SSSSGGGGIIIIKKKKOOOOPPPPTTTT((((2222)))) SSSSGGGGIIIIKKKKOOOOPPPPTTTT((((2222))))
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- initfile The process control initialization program if the default,
- /_e_t_c/_i_n_i_t, is overridden. See _i_n_i_t(1M).
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- initstate The run level to override the default state present in
- /_e_t_c/_i_n_i_t_t_a_b. See _i_n_i_t_t_a_b(4).
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- keybd The international keyboard type.
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- monitor Overrides the default monitor setting when an unrecognized
- monitor is attached to an Indy system. Specifying 'h' or
- 'H' indicates the attached monitor supports high
- resolution mode (1280x1024 @ 60Hz). Otherwise the default
- resolution is low resolution (1024x768 @ 60Hz). This
- variable is usable only on an Indy system and is stored in
- non-volatile RAM.
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- netaddr The Internet network address for booting across the
- Ethernet.
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- logocolor The color of the logo while in the standalone programs,
- and the kernel textport (no window manager running) is
- controlled by this variable. It is 6 hex digits, which
- are the values for red, green, and blue in that order.
- This is currently implemented only on the Personal Iris.
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- nswap The number of blocks to use in the swap partition; this
- amount overrides the partition size.
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- pagecolor The color of the textport while in the standalone
- programs, and the kernel textport (no window manager
- running) is controlled by this variable. It is 6 hex
- digits, which are the values for red, green, and blue in
- that order. This is currently implemented only on the
- Personal Iris.
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- root The disk that contains the root (/) file system (as it
- would be named in the /dev/dsk directory).
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- screencolor The color of the screen background while in the standalone
- programs, and the kernel textport (no window manager
- running) is controlled by this variable. It is 6 hex
- digits, which are the values for red, green, and blue in
- that order. This is currently implemented only on the
- Personal Iris.
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- showconfig If this variable is specified, the kernel will print out
- verbose information about memory and device configuration
- at boottime.
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- srvaddr If set, this specifies the (only) host that will be used
- to resolve bootp requests. It should be set in standard
- IP address format.
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- PPPPaaaaggggeeee 2222
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- SSSSGGGGIIIIKKKKOOOOPPPPTTTT((((2222)))) SSSSGGGGIIIIKKKKOOOOPPPPTTTT((((2222))))
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- swaplo The first block to use in the swap partition; this amount
- overrides the default value of 0.
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- sync_on_green If this value is nnnn, the sync information is not
- superimposed on the green monitor line.
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- tapedevice The tape device used for software installation.
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- DDDDIIIIAAAAGGGGNNNNOOOOSSSSTTTTIIIICCCCSSSS
- Upon successful completion, _s_g_i_k_o_p_t returns 0. Otherwise, _s_g_i_k_o_p_t
- returns -1 and sets _e_r_r_n_o to indicate the error:
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- [EINVAL] The given _o_p_t_i_o_n was not found.
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- [EFAULT] The _o_p_t_i_o_n or _b_u_f argument specifies an invalid address.
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- SSSSEEEEEEEE AAAALLLLSSSSOOOO
- syssgi(2) - the SSSSGGGGIIII____GGGGEEEETTTTNNNNVVVVRRRRAAAAMMMM command provides almost the same
- functionality.
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- PPPPaaaaggggeeee 3333
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