IRC log of #maemo for Monday, 2019-02-25

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Wikiwidelibc6 contains timezone data. Does it have any modifications between CSSU-Testing and CSSU-Devel?12:59
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WikiwideUnder what circumstances is upgrading kernel likely to end up with a bricked device? Keep in mind that USB port is broken.13:03
WikiwideNo, multiboot is not installed.13:04
unrestif you have no way of altering the kernel line in the bootloader and if no safe kernel is still available13:04
unrestidk how maemo handles kernel updates or whether it retains a "failsafe" kernel13:05
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KotCzarnyif you dont have uboot installed, it's written directly to nand space13:06
WikiwideSo, I should install uboot first?13:06
KotCzarnyso no, writing bad kernel will get you a brick, which requires usb to fix13:06
KotCzarny~uboot13:06
infobotN900 uBoot is a siamese twin binary [uBoot+stockMaemoKernel] that resides in kernel NAND partition /dev/mtd3 aka "kernel". You can't uninstall it, rather you'll nuke it when you flash/install another kernel like stock maemo kernel or powerkernel. To start other than stock maemo kernel via uBoot, you have to provide the according kernel image files, or http://talk.maemo.org/showthread.php?t=8161313:06
KotCzarny~multiboot13:07
infobotwell, multiboot is http://maemo.org/packages/view/multiboot/, or **DEPRECATED*, see ~maemo-multiboot13:07
WikiwideIf I already have kernel power 2.6.28.10 installed, is it safe to install uboot?13:08
Wikiwide~maemo-multiboot13:08
infobotextra, extra, read all about it, maemo-multiboot is deprecated, and a horrible hack.  PROBLEMS WITH NITDROID/MULTIBOOT? reflash rootfs&kernel aka COMBINED13:08
KotCzarnyread the thread about uboot13:08
KotCzarnysince you have broken usb port it will be tricky to fix if you do something wrong13:09
WikiwideI remember it in connection with having one device that doesn't work because of combination of multiboot, kernel upgrade and broken USB port13:09
KotCzarnyforget about multiboot13:09
WikiwideReading http://talk.maemo.org/showthread.php?t=8161313:12
WikiwideHAM is the safest, regarding dependency hell. But it will not protect against empty battery...13:12
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WikiwideIn HAM, kernel power 2.6.28.10 is the closest, but it is 53, not 52.13:15
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WikiwideI don't get it. I can find http://repository.maemo.org/extras-devel/pool/fremantle/free/k/kernel-power/kernel-power-bootimg_2.6.28-10power52_armel.deb , but I do not see anything like "u-boot-flasher for power kernel v52", yet13:28
KotCzarnyextras-devel. its not what you want.13:29
WikiwideNo idea. I just want to get system into working, consistent state where date doesn't disagree with GUI about what the timezone is.13:30
KotCzarnyhow is wrong timezone related to kernel in your case?13:31
WikiwideI know that current kernel is power v52, and ham has been nagging me for ages to upgrade to v53 or something.13:32
KotCzarnyv53 here13:33
KotCzarnyif you dont have uboot/multiboot, then i guess upgrading to v53 should just work?13:33
WikiwideWrong timezone might be coming from a disagreement between some libraries. I don't know. So I want to get ham's question out of the way and see that yes, with everything upgraded, date is still not consistent.13:33
WikiwideShould just work... At what voltage is it safe to upgrade without having nand flashing interrupted mid-way?13:34
KotCzarnysince you are charging your battery outside, just charge it fully?13:35
WikiwideOkay... Anything about free space on rootfs, homefs or MyDocs?13:35
sixwheeledbeastif uboot is installed it should just work with kp5313:36
KotCzarnyswb: does order of installing uboot and kp53 matter?13:37
WikiwideI have available : 44MB on /, 63MB on /home, 38MB on MyDocs.13:37
sixwheeledbeastI wouldn't expect so, but IDK13:37
WikiwideU-boot is not installed, at the moment. kp52 is installed.13:37
sixwheeledbeastit's a separate package kernel-power-bootimg13:38
sixwheeledbeastvia HAM it would be "U-Boot with kernel 2.6.28-omap1 and Linux kernel for power user (boot image for U-Boot)"13:38
WikiwideI have kernel-power               1:2.6.28-10power52 , flasher and modules too. I don't have kernel-power-bootimg installed. HAM has U-Boot with kpv53.13:40
sixwheeledbeastAs for battery I have no idea, it's not easy to stay either because each battery is in a different state. Normally full to maybe half is recommended13:43
sixwheeledbeastFor any serious update/upgrade13:43
WikiwideSo, if I install u-boot-flasher and kernel-power-bootimg v52, it should work?13:44
WikiwideNay, apt-get disagrees.13:45
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WikiwideSo, get full battery and just upgrade everything.13:48
MaxdamantusDo you have a second device to experiment with?13:52
Maxdamantusso you don't just brick your only one by doing something you don't quite understand?13:53
Maxdamantus(I wouldn't claim to understand it either; I've only ever flashed over USB, not from the device)13:53
WikiwideNot sure. I might have one device with working USB port somewhere...13:53
WikiwideI am not a fan of flashing in general.13:54
Maxdamantus(though I know how my boot sequence works, and it involves having a u-boot that looks first on the SD card, so I can always recover using that if my USB stops working)13:54
MaxdamantusYeah, that's why you just install u-boot once and don't touch it again.13:55
WikiwideWhy cannot a device have only memory cards, instead of solder-on memory chips?13:55
Maxdamantussince u-boot should then look on SD/eMMC for configuration.13:55
sixwheeledbeastspeed13:55
KotCzarnyprice13:56
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WikiwideI have no memory card, yet. And my eMMC doesn't have much space on it...13:56
WikiwideSpeed is a valid argument. Price isn't.13:56
KotCzarnyit is when you cut costs13:57
KotCzarny(from manufacturer side i guess)13:57
KotCzarnyalso in support costs/time13:57
WikiwideI guess...13:57
KotCzarnywhen people start buying cheapest sh*t sdcards13:57
KotCzarnyand they die after few weeks13:57
sixwheeledbeastreliability ^13:58
WikiwideBut support costs would have been minimised by using memory card for booting13:58
sixwheeledbeastPlus it wasn't a common idea until RPi13:59
KotCzarnyswb: many allwinner tablets used sdcard for rootfs13:59
KotCzarnyin the A10 era13:59
WikiwideQuality... That's tricky. Don't factories have quality control these days?13:59
KotCzarnybut those were most often nonames, with no support from vendor at all13:59
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KotCzarnywikiwide: quality control nowadays is controlled by profits14:00
KotCzarnyand you dont get profits if users dont buy more14:00
KotCzarnyie. cars breaking just after 3-4 years14:00
sixwheeledbeast^ QC will have tolerance14:00
KotCzarnyso basically its 'push it out, sell them more'14:00
sixwheeledbeastCertainly in a consumer market it is.14:01
MaxdamantusI imagine there shouldn't be an inherent reason why it should be faster.14:03
sixwheeledbeastI have just replaced some capacitors that where clearly fitted due to price.14:03
MaxdamantusIf the interface used by the eMMC chip is better, why not just sell cards with that chip?14:03
sixwheeledbeastTo anyone else the device was throw away it's done 6 years14:04
KotCzarnyprice/size14:04
KotCzarnyeven seen emmc on a subcard with pins?14:04
KotCzarnythey are bulky14:04
Maxdamantusas in a NAND chip?14:05
KotCzarnyas in emmc expansion card14:05
MaxdamantusI thought the eMMC chip was already kind of encapsulated.14:05
sixwheeledbeastSwapped Decon for Jamicon, yer not the best replacements but there are other components that will likely fail first.14:05
KotCzarnyMaxdamantus: but you still have to connect to the system somehow14:05
KotCzarnyand if you want faster interface, it needs more lines14:05
KotCzarnyhttps://www.friendlyarm.com/index.php?route=product/product&product_id=20914:06
KotCzarnyan example14:06
DocScrutinizer05folks, this looks not all bad: https://www.indiegogo.com/projects/cosmo-communicator#/14:16
DocScrutinizer05though the SoC... well nowadays you have to be happy if your SoC *allows* multiboot14:16
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