Xperience F2FS

Starting with early March 2015, CyanogenMod for the whole original line of Sony’s Xperia Z devices support F2FS, a filesystem optimized for flash memory. Tests have shown it to outperform the default ext2/3/4 that we used previously, so definitely a nice thing to have.

However, if you want to benefit from F2FS, you need to manually convert your phone. Be aware that this needs some understanding of how to use ADB and the conversion process will DELETE all you user data/settings!

First, you need to have CyanogenMod 12 or higher installed on your phone, and be using the official recovery. Also, you need ADB installed and ready to use on your computer.

This is how you convert to F2FS:
– Connect your phone via USB and boot into recovery mode
– Open a command line and type “adb shell”
– Type “mkfs.f2fs /dev/block/platform/msm_sdcc.1/by-name/cache”
– Type “mkfs.f2fs /dev/block/platform/msm_sdcc.1/by-name/userdata”
– Reboot the device

Carpe Noctem

After a long development phase, Xperia Tablet Z and Xperia Tablet Z Wifi are now on the official nightlies list of CyanogenMod 12.1, not least thanks to testers on XDA and generous donations.
The list of improvements since CM12 is immense, with a load of kernel updates that makes these devices as smooth and fast as they have never been on CyanogenMod.
Enjoy people!

WinUAE Help 2.2.9 & OSS

Well, Peter has been at it again, and incorporated changes for the latest WinUAE version. Also, the repository with all the help pages is now publicly hosted on Github! Better late than never, after more than a decade of secrecy :)

You can find the download at the usual location.

CyanogenMod Fusion

In January, I’ve been added as a device maintainer for Sony’s fusion3 platform on CyanogenMod. That platform includes the original Xperia Z line of devices (Z, ZL, ZR, Tablet Z, Tablet Z Wifi). Most of my work went into the platform and the 2 tablets, since I actually own one of these. By now, I greenlighted the tablets for CM12, and they are now official CyanogenMod nightlies. , they are my main target of development. The phones will trail a bit, since I need to rely on others to test fixes and features for me, mainly through a thread on XDA.

WinUAE Help 2.2.7

Thanks to Peter Hutchison, who has been working on the help file for an unbelieveable 12 years already, you can now find version 2.2.7 in the download section!

Slow TomTom

Cherish your old satnav, despite it being a bit slow? Have map updates you want to transfer over, but it takes 14 hours or more to complete? Here is a hint: stay away from USB3 ports, that should speed up the transfer… Way to go, TomTom (One, XL).

SecurePlatform to Gaia

Checkpoint switched the platform for their security products from SecurePlatform to Gaia. Sooner or later, a switch to Gaia will be necessary… Well, there are plenty of documents about this topic out there. Rejoice, people, one follows right here – valid for small installations (standalone boxes, really).

First of all, you want to get the current configuration from your box. You need to understand that this consists of 2 parts: the OS level configuration (interfaces, routing table) and the CP database (rulebase, CP settings). Checkpoint provides tools for the latter, but not for the latter.

On the OLD firewall
Preperation:
1) Download this script
2) Get the target migration tools from Checkpoint. Either from a box with the target software installed, or from their download center
3) Copy both over to the box, by any method that works for you (TFTP, FTP, USB, magic)
4) Extract the CP upgrade_tools
5) Spread some execute permissions if necessary! “chmod +x splat2gaia.sh” and “chmod +x migrate”

For the OS level configuration
1) Execute “splat2gaia.sh”
2) Copy the output somewhere safe

For the CP database
1) Execute “migrate export”
2) Copy the resulting TGZ file somewhere safe

On the NEW firewall
Preparation
1) Install a fresh Gaia image, if not already installed
2) Follow CP’s guide and finish the first time configuration wizard

Restore the OS level config
1) Get console access to the box
2) Copy the output of splat2gaia.sh over line by line, or copy it into a bash script

Restore the rule database
1) Copy the TGZ over to $FWDIR/bin/upgrade_tools
2) Execute “migrate import”

Almost done! Now, connect to the box via your newly installed SmartDashboard, and install the rule database. Only after that step will the rules be enforced!

Note: depending on how you perform the switch over to the new platform, you might get a ton of “TCP packet out of state” errors. In that case, you might want to go to general options -> stateful inspection, and disable the “drop out of state packets” for the first couple of hours of operation.

WinUAE Help 2.2.5

A new version is out, updated to fit for WinUAE 2.6, thanks to Peter yet again! Go and grab it! Either in the downloads section or access the online version…

Smart phone RIL

After tinkering with cameras and solar power systems, it was time to play around a bit with Android – in the form of CyanogenMod. After setting up a build environment for my i9100 (a Galaxy S2 in marketing terms), I decided to help figure out a problem with open-sourcifying one of the libraries for it, namely libril (part of the radio interface layer).

This device has a history of freaking out OSS people, and libril was no different, as can be seen in the code review for the library. While the same code would work perfectly fine on similar devices with similar radios, it kept crashing on the i9100 upon dialing out. After some debugging, I found out that the UUS (user-to-user signaling) handling was causing the crash – a MEMMAP SIGSEV error!

Namely, it was memset(&uusInfo, 0, sizeof(RIL_UUS_Info)); that caused the kernel to freak. Intermediate solution? Remove the UUS information, as it is not really mandatory. The question remains: why can’t the phone allocate the (little) memory required for this struct? Might have something to do with heap/stack allocation…

Dirty Port TT

New in our Tools section: Dirty Port Testing Tool, a tiny utility to open a TCP listener and connect to it from the same UI, simple and fast. Developed in about one hour after being increasingly frustrated with having to test dozens of ports and hosts in multiple firewall setups in a lab environment…

Scroll to Top