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Monthly Archives: April 2016

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ARM64 – Odroid C2 With Latest U-Boot and Kernel – Not Quite Yet..

Adventures With Linux ™ Posted on April 27, 2016 by RGApril 27, 2016

I decided to check the latest linux-next tree for signs of Odroid C2 code, and there is some there – apparently for basic functionality..     Compiled OK, but when I tried to boot it, the Hardkernel-supplied version of U-Boot crashed: odroidc2#ext4load mmc 0:1 ${loadaddr} /boot/uboot/Image 7748608 bytes read in 187 ms (39.5 MiB/s) odroidc2#ext4load mmc 0:1 ${dtb_loadaddr} /boot/uboot/meson-gxbb-odroidc2.dtb … Continue reading →

Posted in aarch64, alpha release, ARM64, compilation, Crash and Burn.., Hacks, Odroid C2, Opinion, U-Boot | Tagged crash, linux-next, odroid c2, reset, u-boot patch | 4 Replies

ARM – Another Source for Rootfs Images..

Adventures With Linux ™ Posted on April 26, 2016 by RGApril 26, 2016

If you need a particular rootfs for an ARM7 or ARM64 device, there is a source of these at http://libguestfs.org/download/builder/ As an example, for Fedora 23 aarch64, then download the http://libguestfs.org/download/builder/fedora-23-aarch64.xz file, and then expand it (I use ark..)   This will give you a file fedora-23-aarch64, and simply rename this to fedora-23-aarch64.img. As the Fedora aarch64 images … Continue reading →

Posted in aarch64, arm, ARM64, armv7, boot, Fedora, Linux / ARM, Opinion, Performance | Tagged arm, arm64, details, extract, libguestfs.org, rootfs images | 1 Reply

ARM64 – Pi3 Success – Almost..

Adventures With Linux ™ Posted on April 26, 2016 by RGApril 26, 2016

After more ‘investigation’, I managed to find a working U-Boot for a 64-bit boot of the Raspberry Pi 3, by copying it from the boot directory of this: http://www.tom-yam.or.jp/rpi3/rpi3-arm64-debian-20160414.img.xz found towards the end of the latest 64-bit thread on the Pi Forum: https://www.raspberrypi.org/forums/viewtopic.php?f=72&t=137963&sid=cd15abd8d4dd2a2d5c517f47a3e4f5e4&start=125 .  Thanks to xyinao for putting it all together.. I copied the kernel Image … Continue reading →

Posted in aarch64, boot, compilation, Crash and Burn.., Fedora, Hacks, kernel, Linux / ARM, Opinion, Performance, Raspberry Pi, U-Boot | Tagged 64-bit kernel, boot ok, fedora 23, only 3 cpu cores, raspberry pi 3, tests | 2 Replies

Kernel – 4.6-rc5 – OK with (Patched) VMware, and (Patched) NVIDIA..

Adventures With Linux ™ Posted on April 25, 2016 by RGApril 25, 2016

Kernel 4.6-rc5 is out, and brief details of changes from -rc4 are here: http://lkml.iu.edu/hypermail/linux/kernel/1604.3/00178.html Kernel 4.6 seems to have a habit of continuing later-rc breakages with VMware and NVIDIA, compared to previous kernel releases.. The VMware 12 fix for 4.6-rc4 (see http://rglinuxtech.com/?p=1706 ) still works OK with 4.6-rc5, but even the latest NVIDIA driver – 364.19 breaks … Continue reading →

Posted in compilation, Crash and Burn.., fix, Hacks, kernel, Linux, NVIDIA, VMware | Tagged fix, kernel 4.6-rc5, nvidia 364.19 patched, success, vmware 12 patched | Leave a reply

VMware – Later 4.6-rc breaks vmmon and vmnet..

Adventures With Linux ™ Posted on April 23, 2016 by RGApril 23, 2016

Thanks to Justin Palermo, there is a patch for VMware 12 vmmon and vmnet problems he identified with the later Kernel 4.6-rcs.       See comments on my earlier 4.6-rc1 article for details:  http://rglinuxtech.com/?p=1679 I have applied the patch to VMware 12.1.0, on Kernel 4.6-rc4, and VMware now compiles and runs OK.. Robert Gadsdon.   April 22, 2016. … Continue reading →

Posted in compilation, Crash and Burn.., fix, kernel, Linux, success, VMware | Tagged breaks vmmon and vmnet, kernel 4.6-rc4, patch available, success, vmware 12 | Leave a reply

ARM – Rock2 – Kernel 4.6-rc4 – MMC Swaparound – Bug or Feature?

Adventures With Linux ™ Posted on April 21, 2016 by RGMay 23, 2016

I had been running Kernel 4.6-rc2 on the Radxa Rock2 without any issues, and decided to update to recently-released Kernel 4.6-rc4.. Brief details of changes from -rc3 are here:  http://lkml.iu.edu/hypermail/linux/kernel/1604.2/00610.html The boot failed, and I then compiled/installed 4.6-rc3 to see if that would have been OK, and it was.. I then noticed something odd in the failed … Continue reading →

Posted in boot, fix, Hacks, kernel, Linux / ARM, radxa, Rock2, success, U-Boot | Tagged arm, kernel 4.6-rc4, linux, mmc swapped, patch, radxa, rock2, success, workaround | 2 Replies

x86_64 – UP Board – Intel 64-bit, Size of a Pi..

Adventures With Linux ™ Posted on April 19, 2016 by RGApril 19, 2016

Being the pioneer/masochist type (aka ‘early-adopter’..), I was intrigued by the new Intel Atom x5-Z8350-powered UP Board, and now have one on (pre)order.. Basic info, with too much graphics..  http://www.up-board.org/specifications/ Not much info on their forum, yet, but it does have UEFI, so (speculation!) should boot with good old GRUB..  One thing it does not have is … Continue reading →

Posted in hardware, Intel, Linux, Opinion, UP Board, X86_64 | Tagged atom, intel, ordered, pi-sized, uefi, up board, x86_64 | Leave a reply

ARM64 – Pi3 64-Bit Tribulations.. Too Soon for Stability..

Adventures With Linux ™ Posted on April 15, 2016 by RGApril 15, 2016

I had ordered a Raspberry Pi 3 back in March in the hope that it would be a useful exercise in 64-bit on a different chipset..    I was (somewhat) disappointed to find that there was no initial 64-bit support, and indeed that I had been a bit of a pioneer in even running armv7 code on my … Continue reading →

Posted in aarch64, ARM64, boot, Crash and Burn.., Hacks, hardware, Linux / ARM, Opinion, Performance, Raspberry Pi, U-Boot | Tagged arm64, fail, git versions changing, performance issues, plans, raspberry pi 3, tests, u-boot | 1 Reply

ARM64 – Geekbox – 8-Cores and a UART Gotcha..

Adventures With Linux ™ Posted on April 8, 2016 by RGApril 8, 2016

I recently acquired on of the rather quirky Geekbox ARM64 devices, together with the oddly-named ‘Landingstrip’ expansion board.. http://www.cnx-software.com/2015/11/19/geekbox-is-a-hackable-android-and-linux-tv-box-powered-by-rockchip-rk3368-soc/ http://forum.geekbox.tv/ The similarity in overall design to the ARMv7 Radxa Rock2 will be seen from the photo: If you are ordering one, it is worth getting the USB/UART connector as well, as the 3-pin micro flat-pin connection is … Continue reading →

Posted in aarch64, ARM64, Fedora, geekbox, Hacks, hardware, Linux, Opinion | Tagged aarch64, arm64, console uart conflict with sdcard, fedora 23, geekbox, rk3368, ssd | Leave a reply

ARM – Rock2 to Kernel 4.6-rc2 – Ethernet OK, Now..

Adventures With Linux ™ Posted on April 4, 2016 by RGApril 4, 2016

Updated the Rock2 to Kernel 4.6-rc2, and the Ethernet problem has been fixed.. Fedora 23 (Twenty Three) Kernel 4.6.0-rc2 on an armv7l (ttyS2) …………. ]# uname -a Linux rgrock2 4.6.0-rc2 #1 SMP Sun Apr 3 21:05:44 EDT 2016 armv7l armv7l armv7l GNU/Linux Details of Kernel changes from -rc1 are here:   http://lkml.iu.edu/hypermail/linux/kernel/1604.0/01298.html Robert Gadsdon.  April 3, 2016. … Continue reading →

Posted in compilation, Linux / ARM, radxa, Rock2 | Tagged 4.6-rc2, arm, armv7, ethernet ok, kernel, linux, radxa, rock2 | Leave a reply

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