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This article provides frequently asked questios about the Resilient dual-root Partitioning feature, introduced in Junos OS 10.4R3, 11.1R1 and all later releases.
Note: This FAQ article will be periodically updated to reflect any changes between releases.
Starting with Junos Software Release 10.4R3 and 11.1R1, the EX Switch File System will be formatted from a 3 slice partition to a 4 slice partitioning scheme. This is related to the Resilient dual-root Partition feature that was introduced in these releases and all later releases.
There are certain upgrade requirements that are documented in the Junos Release Notes and Junos Software Guide for the EX Switch Platform, starting with Junos Software releases 10.4R3 and 11.1R1. The information listed here should provide additional detail or common links to this information and assist with EX Switch upgrades for all platforms.
Logging to master
..Password:
--- JUNOS 10.4R3.4 built 2011-03-19 22:06:32 UTC
At least one package installed on this device has limited support.
Run 'file show /etc/notices/unsupported.txt' for details.
- This message can be safely ignored or you can permanently remove it. It appears because of the jloader package file detected on system, and only appears when the Junos OS software is installed before upgrading the loader software, which is the case only for EX8200 switches.
- You can permanently remove this message by removing the jloader package and rebooting the system:
request system software delete jloader-ex-8200-11.3-date-domestic-signed.tgz
request system reboot
root> show system snapshot media internal slice 1
Information for snapshot on internal (/dev/da0s1a) (primary)
Creation date: May 2 16:38:06 2011
JUNOS version on snapshot:
jbase : 10.4R3.4
jcrypto-ex: 10.4R3.4
jdocs-ex: 10.4R3.4
jkernel-ex: 10.4R3.4
jroute-ex: 10.4R3.4
jswitch-ex: 10.4R3.4
jweb-ex: 10.4R3.4
jpfe-ex82x: 10.4R3.4
root> show system snapshot media internal slice 2
Information for snapshot on internal (/dev/da0s2a) (backup)
Creation date: May 2 16:35:55 2011
JUNOS version on snapshot:
jbase : 10.4R3.4
jcrypto-ex: 10.4R3.4
jdocs-ex: 10.4R3.4
jkernel-ex: 10.4R3.4
jroute-ex: 10.4R3.4
jswitch-ex: 10.4R3.4
jweb-ex: 10.4R3.4
jpfe-ex82x: 10.4R3.4
user@switch> show chassis firmware Part Type Version FPC 6 U-Boot U-Boot 1.1.6 (Jan 13 2009 - 06:55:22) 2.3.0 loader FreeBSD/PowerPC U-Boot bootstrap loader 2.2 FPC 7 U-Boot U-Boot 1.1.6 (Jan 13 2009 - 06:55:22) 2.3.0 loader FreeBSD/PowerPC U-Boot bootstrap loader 2.2 Routing Engine 0 U-Boot U-Boot 1.1.6 (Mar 2 2011 - 04:29:01) 3.5.0 loader FreeBSD/PowerPC U-Boot bootstrap loader 2.3 Routing Engine 1 U-Boot U-Boot 1.1.6 (Mar 2 2011 - 04:29:01) 3.5.0 loader FreeBSD/PowerPC U-Boot bootstrap loader 2.3
No. An automatic format only takes place when you upgrade from Junos OS 10.4R2, or any earlier release (3 slice partition), to 10.4R3/11.1R1 or any later Junos release.
show system snapshot media internal slice 1
show system snapshot media internal slice 2
show system snapshot media internal slice alt
show system snapshot media internal
request system snapshot media internal slice alternate
request system snapshot slice alternate
request system reboot slice 1
request system reboot slice 2
request system reboot alternate
nvram setenv boot.btsq.disable 0
(ENABLES boot-sequence function for resiliency-Shell Cmd) nvram setenv boot.btsq.disable 1
(DISABLES boot-sequence function and no resiliency)show system storage partitions
root@ex-switch> request system software add /var/tmp/jloader-ex-3242-11.3I20110326_0802_hmerge-signed.tgz
Checking pending install on fpc0
Validating on fpc0
Done with validate on all virtual chassis members
fpc0:
Verified jloader-ex-3242-11.3I20110326_0802_hmerge.tgz signed by PackageDevelopment_11_3_0 Pre-checking requirements for jloader-ex-3242...
Auto-deleting old jloader-ex-3242...
Unmounted /packages/mnt/jloader-ex-3242-11.3I20110326_0802_hmerge ...
Adding jloader-ex-3242...
Installation in progress, please wait...
Mounted jloader-ex-3242 package on /dev/md10...
Verified manifest signed by PackageDevelopment_11_3_0 Registering jloader-ex-3242 as unsupported
/usr/libexec/ld-elf.so.1: Shared object "libgcc.so.1" not found, required by "bootupgrade"
Installation failed with exit status 1
Saving package file in /var/sw/pkg/jloader-ex-3242-11.3I20110326_0802_hmerge-signed.tgz ...
Saving state for rollback ...
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