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| Both sides previous revision Previous revision Next revision | Previous revision | ||
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cmd:read [2013/03/07 13:32] mcb30 |
cmd:read [2021/04/23 11:40] (current) mcb30 |
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| ===== Synopsis ===== | ===== Synopsis ===== | ||
| - | read <setting> | + | read [--timeout <timeout>] <setting> |
| ===== Examples ===== | ===== Examples ===== | ||
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| echo -n Default gateway: && read net0/gateway | echo -n Default gateway: && read net0/gateway | ||
| - | === Allow user to override DNS server specified via DHCP === | + | === Allow user to edit a kernel command line before booting === |
| - | dhcp | + | set cmdline selinux=0 console=ttyS0,115200n8 console=tty0 |
| - | echo -n Use DNS server: ${} | + | echo -n Kernel command line: ${} |
| - | read dns | + | read cmdline |
| + | chain http://my.web.server/vmlinuz ${cmdline} | ||
| ===== Description ===== | ===== Description ===== | ||
| - | Set value of the specified configuration [[:settings|setting]] to the value provided by the user. | + | Set value of the specified configuration [[:settings|setting]] to the value provided by the user, waiting for the specified timeout (in milliseconds). If no timeout is explicitly specified, or if a zero timeout is specified, then iPXE will wait indefinitely. |
| The value will be interpreted according to the type specified as part of the setting name. For example, to prompt the user to enter a configuration setting for an NTP server address (DHCP option 42): | The value will be interpreted according to the type specified as part of the setting name. For example, to prompt the user to enter a configuration setting for an NTP server address (DHCP option 42): | ||
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| ^ Success | The configuration setting was applied successfully | | ^ Success | The configuration setting was applied successfully | | ||
| - | ^ Failure | The configuration setting was not applied successfully | | + | ^ Failure | The configuration setting was not applied successfully, or no key was pressed within the timeout period | |
| ===== See also ===== | ===== See also ===== | ||
