Boot Flags
- Kelli Higdon
The following diagrams below display the Boot Flag settings used in either the bootup.cfg on the SD card or the dhcpd.conf file located on the BootP/FTP server. Use the diagrams below to compute the Boot Flag value.
Calculating the Boot Flag
The Boot Flag is calculated by adding the bit mask values above based on the desired system attributes. The Host flag can be entered in the host flag line of either the bootup.cfg or dhcpd.conf in either the Decimal or Hexadecimal format.
Desired Functionality | Boot Flag Value |
System is used for T1 protocol | + 0 |
System is used for E1 protocol | + 2 |
Booting from an FTP server | + 0 |
Boot from an SD card | + 32 or 0x20 |
Example
Boot from SD card + E1 protocol
Boot from SD card + 32
E1 Protocol + 2
Boot Flag Value is 34 or 0x22
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If the IMG 2020 is set to boot from the SD card and a fault file occurs, the fault file will be saved on the SD card. If the FTP siaddr for the bootup.cfg file is set, then the fault file will also be transferred to this location.