Cisco CRS-1 - Carrier Routing System Router - Page 247

B-3
Cisco CRS-1 Carrier Routing System to Cisco CRS-3 Carrier Routing System Migration Guide
OL-13669-03
Appendix B Cisco CRS-1 to Cisco CRS-3 Upgrade Decision Trees
Figure B-2 Upgrading from Cisco IOS XR software Releases Later Than Release 3.8 That Do Not
Support FPD Auto-Upgrade to Cisco IOS XR software Release 4.0.1
disk0: 4G
FAT16
2G/2G
FAT16FAT32
3.5G/0.5G
rommon2.01
PIE upgrade to
4.0.1-px
rommon2.01
PIE upgrade
to 4.0.1-px
FAT16FAT32
rommon2.01
PreStaged
Flash or RP
rommon2.01
PreStaged
Flash or RP
Keep current
FAT
Migrate
to 4G
mandatory
Migrate
to 4G
recommended
disk0: 2G
Keep 2G card
FPD upgrade
(reload line
cards)
FPD upgrade
(reload line
cards)
FPD upgrade
(reload line
cards)
FPD upgrade
(reload line
cards)
rommon2.01
PIE upgrade
to 4.0.1-px
rommon2.01
PIE upgrade
to 4.0.1-px
FPD upgrade
(reload line
cards)
FPD upgrade
(reload line
cards)
disk0: 1G
FPD upgrade
(reload line
cards)
Reload
246178
Prior to this operation
-create directory in bootflash:
-copy MBI 4.0.1-px image
During operation
-change BOOTVAR
disk0: 4G
FAT32
3.5G/0.5G
rommon2.01
PIE upgrade to
4.0.1-px
XR≥3.8.0