Cisco 12410 Installation And Configuration Manual page 206

Configuring the Software Configuration Register
If a bootable Cisco IOS software image exists in a flash memory card installed in
Note
slot 0 or slot 1, the configuration register setting is overridden, and the bootable
Cisco IOS software image is booted instead of the default TFTP-bootable Cisco
IOS software image (cisco2-grp through cisco17-grp or cisco2-prp through
cisco17-prp).
Table 4-6
Action/Filename
Bootstrap mode
Default software
cisco2-grp or cisco2-prp
cisco3-grp or cisco3-prp
cisco4-grp or cisco4-prp
cisco5-grp or cisco5-prp
cisco6-grp or cisco6-prp
cisco7-grp or cisco7-prp
cisco10-grp or cisco10-prp
cisco11-grp or cisco11-prp
cisco12-grp or cisco12-prp
cisco13-grp or cisco13-prp
cisco14-grp or cisco14-prp
cisco15-grp or cisco15-prp
cisco16-grp or cisco16-prp
cisco17-grp or cisco17-prp
Cisco 12010, Cisco 12410, and Cisco 12810 Router Installation and Configuration Guide
4-38
Chapter 4
Default Boot Filenames
Bit 3 Bit 2 Bit 1 Bit 0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
System Startup and Basic System Configuration
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
OL-11496-01