Do you want to test drive the Snappy ubuntu core on hyper-v? Here are some simple steps.
1. Download the ova file from the official ubuntu website
2. Use 7-zip (Windows) or tar (Linux) to untar the ova file
3. Use a image file converter (like virtualbox) to convert the vmdk file to vhd file.
e.g. VBoxManage.exe clonemedium core-stable-amd64-cloud-disk1.vmdk core-stable-amd64-cloud-disk1.vhd –format VHD
4. You can use standard cloud-init way to setup the system (not discuss here) or;
5. mount the VHD file in any linux machine, modify the /etc/shadow (in partition 3) to clear the root password;
6. Create a ubuntu-core machine in hyper-v and mount the vhd image.
7. Start the machine and enjoy.
WARNING: Before upgrading, you should backup the system first!!!
Disclaimer: This is just my experience. It is not guarantee the steps listed will work on your system.
Openwrt upgrade on x86 can be very tricky in the old days. However, it becomes an easy task starting from attitude adjustment (12.09) and onward.
The following lists the steps to upgrade to the latest snapshot (barrier breaker). You should change the image to be downloaded in step 4 for the desired version.
- Do a full system backup to avoid any lost. This is very import!!!
- login the system as root
- cd /tmp
- wget http://downloads.openwrt.org/snapshots/trunk/x86/openwrt-x86-generic-combined-ext4.img.gz
- sysupgrade -v /tmp/openwrt-x86-generic-combined-ext4.img.gz
If you want to install a linux in your un-rooted android, gnuroot is app. You can install varies distribution like debian, fedora, etc.