Enabling File System Cleanup - Juniper LN1000 User Manual

LN1000 Mobile Secure Router
40
Firmware Image Status:
Primary Bootstrap: UP TO DATE
....
BEST PRACTICE:
performing a Junos OS upgrade. If you enable file system cleanup, you cannot
roll back Junos OS to a previous version, and in case of an upgrade failure,
can result in a non-functioning router. By setting disabling file system cleanup,
you maintain the option of having a recoverable rollback image available, if
necessary.

Enabling File System Cleanup

When you enable the file system cleanup feature, certain unnecessary files are identified
and deleted early in the boot process. To enable the file system cleanup feature to select
and delete files:
BOOT> setenv fs_clean_boot 1
BOOT> saveenv
BOOT> reset
When you enable file system cleanup, temporary, log, and other unnecessary files are
identified and deleted. The following sample console output shows that the file system
cleanup feature is enabled:
....
NVMRO: Write-enabled
watchdog: Armed
FPGA: Enabled
FS Cleanup: Enabled
POST: Enabled
Firmware Image Status:
Primary Bootstrap: UP TO DATE
....
WARNING: Autorecovery feature is not available as
this system does not support a recovery partition
Starting filesystem cleanup ... Done
Loading configuration ...
....
This additional sample console output shows the file system cleanup feature is enabled
with non-volatile memory read-only (NVMRO) switch enabled as well:
....
NVMRO: Read-only
watchdog: Armed
FPGA: Enabled
FS Cleanup: Enabled
POST: Enabled
Firmware Image Status:
Primary Bootstrap: UP TO DATE
....
Remounting directory /cf/var/home: 5MBytes
Preserving directory /cf/etc: 5MBytes
We recommend that you disable file system cleanup before