Advantages:
- preserves existing partition layout. On the hard-drive.
Only the boot and rootfs partition will be overwritten.
Disadvantages:
- The upgrade process takes much longer to run.
from 2-3 seconds to 15-25 seconds.
Please note that sysupgrade will refuse to upgrade, if the existing
installation has an incompatible partition layout. Future changes
to the bootfs and/or rootfs partition size will likely cause breakage
to the sysupgrade procedure. In these cases, the ext4-rootfs.img.gz
has to be written manually onto the disk. Please don't forget to backup
your configuration in this cases.
Note2: This patch requires
"base-files: upgrade: make get_partitions() endian agnostic"
Note3: If your current installation does not host the two
changes, sysupgrading will wipe the existing partition
layout. Don't forget to backup your data!
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Hardware Highlights:
This patch adds support for Western Digital MyBook Live Series:
CPU: AMCC PowerPC UNKNOWN (PVR=12c41c83) at 800 MHz (PLB=200, OPB=100, EBC=100 MHz)
32 kB I-Cache 32 kB D-Cache, 256 kB L2-Cache, 32 kB OnChip Memory
Board: Apollo-3G - APM82181 Board, 1*SATA
DRAM: 256 MB (2x NT5TU64M16GG-AC)
FLASH: 512 kB (SST 39VF040)
Ethernet: 1xRGMII - 1 Gbit - Broadcom PHY BCM54610
WARNING: The serial port needs a TTL/RS-232 v3.3 level converter!
The MyBook Live Duo additionally features a 1x USB 2.0 host port
and can support a second hard-drive.
This target produces two images for a target.
1. ext4 image
The extracted/raw image can be directly installed on
the internal HDD via "dd if=img.ext4 of=/dev/sdX".
This can either be done in place with the stock MyBook Live
firmware via ssh. Or by removing the HDD and writing the image
with a different PC.
The the compressed images are useful for sysupgrade.
2. recovery.tar image for TFTP and Serial.
extract the recovery.tar to a TFTP server directory.
On the MyBook Live (Duo) serial port - Hit Enter during u-boot and insert:
# setenv serverip 192.168.1.254; setenv ipaddr 192.168.1.1; run net_self
Where 192.168.1.254 is your TFTP server.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
