Installation on microsd

[Marek Handze]

Hi Paul,

 From your post I see that the best way is to make some space on eMMC 
and install Linux on new partition here. Since I'm windows noob, would 
you suggest a good tool to resize current windows partition without 
loosing data ?

To prepare my current Ubuntu 17.04 live USB I was using this script:

http://linuxiumcomau.blogspot.com.au/2017/06/customizing-ubuntu-isos-documentation.html

There is some code getting latest possible kernel + patched for network 
drivers. It works really well and stable running from USB so far.
Missing keyboard/touchpad and sound now, but for that I need to install 
and patch Linux on local partition.

-- 
best,
Marek Handze

W dniu 25/08/17 o 22:04, Paul Mansfield pisze:
> Hi Marek and everybody,
> glad to see some life in this!
> 
> the MMC slot is indeed problematic and you need the kernel parameter
>       sdhci.debug_quirks=0x10000
> or at least you used to, perhaps the TCM has a controller variant
> which  is now better understood by modern kernels?
> 
> The biggest problem is that the UEFI firmware doesn't allow booting
> from the microSD slot in the tablet. Well, at least I never got it to
> work.
> 
> When I first started with the TCM, I didn't want to break the Windows
> install, so I ran linux entirely off the microSD card in an adaptor
> and put it in the dock. You have to use a GPT partition, and set the
> EFI partition type correctly. In there went grub-efi etc. Then I had a
> regular /boot, and a / partition. When the TCM powers on you can get
> up a boot menu and boot off the card slot in the dock.
> 
> I used easyuefi in windows to set things up. And rEFInd really helps.
> 
> I found my TCM was very unstable, and the problem seemed to be the
> kernel shutting down the USB hub or something. The SDIO wifi also a
> contributor, if I used a USB wifi or ether device, it was much better.
> 
> What I then did was to shrink the Windows install in the eMMC, and put
> a /boot partition in the eMMC, which can then be found by UEFI, and
> linux then ran off the microSD card.
> 
> It was still unstable, so I shrank Windows more, and put linux
> entirely into the eMMC. This really helped. However, the thing that
> made it useable was limiting cstates.
> 
> My gut feel, backed up by work-rounds posted to the linux kernel
> bugzilla, is that the storage hub in the Z3735F chip  which does SDIO
> and eMMC has a design flaw, and in the event of any cstate switches,
> has to be programmed very carefully to prevent the entire CPU locking
> up.
> 
> Meanwhile, newer kernels have helped enormously.
> 
> It is possible to have a device which can use the sdio wifi,
> accelerated video, and working sound now!
> _______________________________________________
> click mailing list
> click at tinc-vpn.org
> https://www.tinc-vpn.org/cgi-bin/mailman/listinfo/click
>