Upgrading from a previous OpenWrt install
Backup /etc changes and package list:
Before you upgrade, please consider making a backup of your /etc
directory and then write down the list of packages installed.
As of RC4, reflashing with OpenWrt -WILL RESET THE FILESYSTEM-.
All the changes you've made to the configuration files and all
the packages you've been installed will be purged and replaced
with the new firmware.
NVRAM is NOT modified by a reflash. Any NVRAM values will remain
intact after reflashing.
Backing up the old OpenWrt as a firmware image:
To backup an existing openwrt install, use the command:
dd if=/dev/mtdblock/1 of=/tmp/firmware.trx
This will produce a pseudo-trx file containing the firmware (trx)
followed by a dump of the JFFS2 filesystem -- basically everything
except the bootloader and NVRAM. Copy this to a safe place and
only restore it to a device with the same size flash chip.
Upgrading / Restoring:
To reflash from within openwrt you will need to use a trx file:
mtd -r write firmware.trx linux
The "-r" will force an automatic reboot after the reflashing. You
can also add a "-e linux" to erase the previous firmware, but this
is rarely needed.
[^] # Re: Mise à jour
Posté par alexissoft . En réponse au journal Nouvelle release cliente d'OpenWRT + Petit tuto. Évalué à 4.