[ARMedslack] A quick primer for the PI
Tom
tomeks at spoko.eu.org
Thu Sep 26 17:44:49 UTC 2013
Davide, I've also had problems installing Slackware on RPi.
My board/card did not work with kernel / images they provided.
I've suggested Slackware for RPI should use Raspbian kernel - because
it is ACTIVELY supported.
Try my way
https://salwach.pl/rpi_slackware
>These images have been tested on a
> multitude of boards and have never failed to boot.
Recently I've bought 2nd RPi, just switched SD card to new
one..and ooops...black screen. Old works, new one not.
After download of "new" Raspbian and replacing bootloader I've got it
working.
RPi is NOT Arduino - it changes too fast.
And guys here do not understand that or ignore it.
Standard answer: "Works on my computer"....LOL
Tom
W liście z 26 września 2013:
From: stanley at stanleygarvey.com
To: louigi600 at yahoo.it
CC:
ssc> No nothing obscure needs to be done it should just work. I
ssc> checked today at home. These images have been tested on a
ssc> multitude of boards and have never failed to boot.
ssc> Have you created a swap and ext4 root fs? Donkt know if it will
ssc> boot without these being present.
ssc> Sent from my BlackBerry smartphone from Virgin Media
ssc> -----Original Message-----
ssc> From: Davide <louigi600 at yahoo.it>
ssc> Date: Thu, 26 Sep 2013 15:23:43
ssc> To: stanley at stanleygarvey.com<stanley at stanleygarvey.com>;
ssc> dowelld at netscape.net<dowelld at netscape.net>;
ssc> armedslack at lists.armedslack.org<armedslack at lists.armedslack.org>
ssc> Reply-To: Davide <louigi600 at yahoo.it>
ssc> Subject: Re: [ARMedslack] A quick primer for the PI
ssc> No I formatted the filesystem myself and copied files into it.
ssc> The firs lot of boot loader stuff was gotten out of
ssc> http://stanleygarvey.com/slackwarearm_rpi/slackwarearm-14.0-8GB-20130623.zip
ssc> , unzipp created loop device with off set on the image first
ssc> partition ... mounted it and copied files over.
ssc> root at darkstar:/tmp# fdisk -l slackwarearm-14.0-8GB-20130623.img
ssc> Disk slackwarearm-14.0-8GB-20130623.img: 2558 MB, 2558967808 bytes
ssc> 4 heads, 32 sectors/track, 39046 cylinders, total 4997984 sectors
ssc> Units = sectors of
ssc> 1 * 512 = 512 bytes
ssc> Sector size (logical/physical): 512 bytes / 512 bytes
ssc> I/O size (minimum/optimal): 512 bytes / 512 bytes
ssc> Disk identifier: 0x00007091
ssc> Device Boot Start End Blocks Id System
ssc> slackwarearm-14.0-8GB-20130623.img1 32 97663 48816 c W95 FAT32 (LBA)
ssc> slackwarearm-14.0-8GB-20130623.img2 97664 878847 390592 82 Linux
ssc> swap
ssc> slackwarearm-14.0-8GB-20130623.img3 878848 15751167 7436160 83 Linux
ssc> root at darkstar:/tmp# echo $((32 * 512))
ssc> 16384
ssc> root at darkstar:/tmp# losetup -o 16384 /dev/loop0
ssc> slackwarearm-14.0-8GB-20130623.img
ssc> root at darkstar:/tmp# modprobe vfat
ssc> root at darkstar:/tmp# mount /dev/loop0 /mnt/floppy/
ssc> root at darkstar:/tmp# ls /mnt/floppy/
ssc> COPYING.linux* config-raspberrypi-3.2.27* start.elf*
ssc> LICENCE.broadcom* config.txt* start_cd.elf*
ssc> System.map-raspberrypi-3.2.27*
ssc> fixup.dat* zImage-raspberrypi-3.2.27*
ssc> bootcode.bin* fixup_cd.dat*
ssc> cmdline.txt* initrd-raspberrypi.img*
ssc> root at darkstar:/tmp#
ssc> Is there something obscure that need to be done to the dor partition ?
ssc> Regards
ssc> David
ssc> ________________________________
ssc> Da: "stanley at stanleygarvey.com" <stanley at stanleygarvey.com>
ssc> A: Davide <louigi600 at yahoo.it>; "dowelld at netscape.net"
ssc> <dowelld at netscape.net>; "armedslack at lists.armedslack.org"
ssc> <armedslack at lists.armedslack.org>
ssc> Inviato: Giovedì 26 Settembre 2013 14:52
ssc> Oggetto: Re: [ARMedslack] A quick primer for the PI
ssc>
ssc> Did you dd the image onto the card?
ssc> What suze of card?
ssc> Try the installer image at stanleygarvey.com
ssc> Regards,
ssc> Stanley
ssc> Sent from my BlackBerry smartphone from Virgin Media
ssc> ________________________________
ssc> From: Davide <louigi600 at yahoo.it>
ssc> Date: Thu, 26 Sep 2013 13:38:21 +0100 (BST)
ssc> To: stanley garvey<stanley at stanleygarvey.com>;
ssc> dowelld at netscape.net<dowelld at netscape.net>;
ssc> armedslack at lists.armedslack.org<armedslack at lists.armedslack.org>
ssc> ReplyTo: Davide <louigi600 at yahoo.it>
ssc> Subject: Re: [ARMedslack] A quick primer for the PI
ssc> I can't get it to boot at all.
ssc> If I turn the PI on I get the PER led solid on but the ACT led does this:
ssc> first faint on, the bright on for a second or do then it goes off and stays off.
ssc> I've tried 2 different SD cards supposing that the firs may have
ssc> had some sort of compatibility issue but the second does the same thing.
ssc> I downloaded updated boot stuff from here:
ssc> http://www.daves-collective.co.uk/raspi/system/raspi-boot-20120801-fw-1_dbs.tgz
ssc> ... but nothing seems to change.
ssc> Is the PI finiky on where the dos partition should begin ? or on the formatting of it ?
ssc> mine starts at sector 2048 (1Mb from the beginning of the device) and is fat32 formatted
ssc> I suspect that its not booting because if I take out the SD and
ssc> mount in on the PC fsck does not detect the filesystem dirty flag
ssc> that I should have if the thing booted but showed nothing on the TV.
ssc> ATB
ssc> David
ssc> ________________________________
ssc> Da: stanley garvey <stanley at stanleygarvey.com>
ssc> A: "dowelld at netscape.net" <dowelld at netscape.net>;
ssc> "armedslack at lists.armedslack.org"
ssc> <armedslack at lists.armedslack.org>; Davide <louigi600 at yahoo.it>;
ssc> Slackware ARM port <armedslack at lists.armedslack.org>
ssc> Inviato: Giovedì 26 Settembre 2013 13:15
ssc> Oggetto: Re: [ARMedslack] A quick primer for the PI
ssc>
ssc> On Sep 26, 2013 08:25 "Davide" <louigi600 at yahoo.it> wrote:
>>
>>>>I got a friend to lend me a PI for a week ...
>>
>>>>I had a quick look at the community links for slackware on the PI but none really tell me what i want to know:
>>>>what does the GPU look for in the SD ? (as fas as I know it's the GPU that loads stuff from SD into memory and then passes control to it)
>>>>does it look for a second stage boot loader like a uboot image or does it load kernel and initrd ? (bootcode.bin)
>>>>I'm supposing that the first partition (the dos one) is where this stuff should be put ?
>>>>The content in there looks about right:
>>
>>>>root at darkstar:/tmp# fdisk -l slackwarearm-14.0-8GB-20130623.img
>>
>>>>Disk slackwarearm-14.0-8GB-20130623.img: 2558 MB, 2558967808 bytes
>>>>4 heads, 32 sectors/track, 39046 cylinders, total 4997984 sectors
>>>>Units = sectors of
ssc> 1 * 512 = 512 bytes
>>>>Sector size (logical/physical): 512 bytes / 512 bytes
>>>>I/O size (minimum/optimal): 512 bytes / 512 bytes
>>>>Disk identifier: 0x00007091
>>
>>>> Device Boot Start End Blocks Id System
>>>>slackwarearm-14.0-8GB-20130623.img1 32 97663 48816 c W95 FAT32 (LBA)
>>>>slackwarearm-14.0-8GB-20130623.img2 97664 878847 390592 82 Linux
ssc> swap
>>>>slackwarearm-14.0-8GB-20130623.img3 878848 15751167 7436160 83 Linux
>>>>root at darkstar:/tmp# echo $((32 * 512))
>>>>16384
>>>>root at darkstar:/tmp# losetup -o 16384 /dev/loop0 slackwarearm-14.0-8GB-20130623.img
>>>>root at darkstar:/tmp# modprobe vfat
>>>>root at darkstar:/tmp# mount /dev/loop0 /mnt/floppy/
>>>>root at darkstar:/tmp# ls /mnt/floppy/
>>>>COPYING.linux* config-raspberrypi-3.2.27* start.elf*
>>>>LICENCE.broadcom* config.txt* start_cd.elf*
>>>>System.map-raspberrypi-3.2.27*
ssc> fixup.dat* zImage-raspberrypi-3.2.27*
>>>>bootcode.bin* fixup_cd.dat*
>>>>cmdline.txt* initrd-raspberrypi.img*
>>>root at darkstar:/tmp#
>>
>>
>>>>I plan to play a little with a miniroot so I won't need an 8Gb SD :)
>>
>>>Hi David,
>>Hi Dave ;)
>>
>>>The GPU looks for
ssc> bootcode.bin, which looks for and loads loader.bin. Loader.bin reads in
ssc> config.txt (to configure the hardware) and loads start.elf (the GPU
ssc> binary blob). Once it has configured the hardware, it then >loads
ssc> kernel.img, and feeds it the contents of cmdline.txt.
>>
>>But on the readymade image from http://stanleygarvey.com/slackwarearm_rpi/index.php there is no loader.bin in the dos partition !
>>Is there something wrong with this image or is loader.bin optional ?
>>
>>> Hi Davide, ther is nothing wrong with the image, I use it at home, it could be that loader bin is a new addition to the Fat32 boot partitionfor Debian variants. the boot layout I use has not changed since last Christmas.
>>
>>>So you have
ssc> to have bootcode.bin, loader.bin, config.txt, start.elf, kernel.img,
ssc> and cmdline.txt, then if you load a ramdisk image in the cmdline.txt
ssc> file you need the ramdisk image file.
>>
>>> yes
>>
>>Is the initrd loading governed by config.txt ?
>>
>>> yes
>>
>>I see in there ramfsfile=initrd-raspberrypi.img
>>Can I change that manualy with vi and load a different initrd ? or comment it out to not load an initrd at all ?
>>
>>> Yes you can edit the file with vi and load a different initrd. It is commented out in my config.txt as it is not required to boot a running system. initrd-raspberrypi.img is the installer, It has been left there so you can reinstall if you wish, it is a versatile-initrd that has been modified with a modified version of the mk-tegra.sh.
>>
>>When is the HDMI output initiated ?
>>
>>>Before the system
ssc> comes up as the GPU boots the system.
>>
>>> if you ate looking for a mini root try the installer image, it is 1GB and is the standard slackwarearm installer so has busybox and other stuff. you won't be able to install a full system on 1GB the 3rd partition is a stub and should be deleted and recreated to use the remaining space on whatever size card you have before stating 'setup'. you may be able to get a base slackwarearm systm (a)(ap) series on a 4GB card.
>>Hope that helps,
>>Stanley.
>>
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