Cisco CRS-1 - Carrier Routing System Router Migration Manual page 247

Appendix B Cisco CRS-1 to Cisco CRS-3 Upgrade Decision Trees
Figure B-2
disk0: 4G
disk0: 4G
3.5G/0.5G
XR≥3.8.0
disk0: 2G
disk0: 1G
Reload
OL-13669-03
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
rommon 2.01
PIE upgrade to
4.0.1-px
FAT16
2G/2G
FAT16 FAT32
3.5G/0.5G
rommon 2.01
FAT32 PIE upgrade to
4.0.1-px
Keep 2G card
Migrate
to 4G
recommended
Migrate
to 4G
mandatory
Cisco CRS-1 Carrier Routing System to Cisco CRS-3 Carrier Routing System Migration Guide
FPD upgrade
(reload line
cards)
rommon 2.01 FPD upgrade
PIE upgrade (reload line
to 4.0.1-px cards)
FPD upgrade
(reload line
cards)
rommon 2.01
FAT16 FAT32
PIE upgrade
to 4.0.1-px
rommon 2.01
Keep current
PIE upgrade
FAT
to 4.0.1-px
FPD upgrade
rommon 2.01
(reload line
PreStaged
cards)
Flash or RP
rommon 2.01 FPD upgrade
PreStaged (reload line
Flash or RP cards)
Prior to this operation
-create directory in bootflash:
-copy MBI 4.0.1-px image
During operation
-change BOOTVAR
FPD upgrade
(reload line
cards)
FPD upgrade
(reload line
cards)
B-3