Cisco CRS-1 - Carrier Routing System Router Migration Manual page 248

Figure B-3
In 3.8.4 and 3.9.1
fpd auto-upgrade
is supported
XR
3.8.4/3.9.1
Reload
Cisco CRS-1 Carrier Routing System to Cisco CRS-3 Carrier Routing System Migration Guide
B-4
Upgrading from Cisco IOS XR software Releases That Support FPD Auto-Upgrade
(Release 3.8.4 and Release 3.9.1) to Cisco IOS XR software Release 4.0.1
rommon 2.01
PIE upgrade to
4.0.1-px
disk0: 4G
FAT16
2G/2G
FAT16 FAT32
3.5G/0.5G
disk0: 4G rommon 2.01
FAT32 PIE upgrade to
3.5G/0.5G 4.0.1-px
Keep 2G card
disk0: 2G
Migrate
to 4G
recommended
Migrate
to 4G
disk0: 1G
mandatory
Appendix B Cisco CRS-1 to Cisco CRS-3 Upgrade Decision Trees
Supported but we don't
recommend to keep FAT16
rommon 2.01
PIE upgrade
to 4.0.1-px
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
Flash or RP
FPD upgrade
rommon 2.01
(reload line
PreStaged
Flash or RP
Prior to this operation
-create directory in bootflash:
-copy MBI 4.0.1-px image
During operation
-change BOOTVAR
cards)
cards)
OL-13669-03