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Last Post 24 Aug 2012 01:04 PM by ftiernan

Building Linux

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ftiernan

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21 Jun 2012 06:44 PM
Trying to build linux for omap35x following README in patch download and Application Note 412 I have loaded CodeSourcery, and Logic Patches (and source for kernel and uboot from Logic patches download). After successfully patching u-boot and then trying to configure u-boot per the README file i get a "No Rule to make target 'omap3logic_config' " message. I have not found arnything in FAQs or Discussion Group on this problem. Below is the screen shot from the terminal. As I am new to linux perhaps I am missing some obvious step. Any help would be appreciated. Thank you. ftiernan@ftiernan-Latitude-2120:~$ cd $UBOOT ftiernan@ftiernan-Latitude-2120:~$ which arm-none-linux-gnueabi-gcc /home/ftiernan/CodeSourcery/Sourcery_G++_Lite/bin/arm-none-linux-gnueabi-gcc ftiernan@ftiernan-Latitude-2120:~$ arm-none-linux-gnueabi-g++ -v Using built-in specs. COLLECT_GCC=arm-none-linux-gnueabi-g++ COLLECT_LTO_WRAPPER=/home/ftiernan/CodeSourcery/Sourcery_G++_Lite/bin/../libexec/gcc/arm-none-linux-gnueabi/4.5.2/lto-wrapper Target: arm-none-linux-gnueabi Configured with: /scratch/janisjo/arm-linux-lite/src/gcc-4.5-2011.03/configure --build=i686-pc-linux-gnu --host=i686-pc-linux-gnu --target=arm-none-linux-gnueabi --enable-threads --disable-libmudflap --disable-libssp --disable-libstdcxx-pch --enable-extra-sgxxlite-multilibs --with-arch=armv5te --with-gnu-as --with-gnu-ld --with-specs='%{save-temps: -fverbose-asm} %{funwind-tables\|fno-unwind-tables\|mabi=\|ffreestanding\|nostdlib:;:-funwind-tables} -D__CS_SOURCERYGXX_MAJ__=2011 -D__CS_SOURCERYGXX_MIN__=3 -D__CS_SOURCERYGXX_REV__=41 %{O2:%{!fno-remove-local-statics: -fremove-local-statics}} %{O:%{O\|O0\|O1\|O2\|Os:;:%{!fno-remove-local-statics: -fremove-local-statics}}}' --enable-languages=c,c++ --enable-shared --enable-lto --enable-symvers=gnu --enable-__cxa_atexit --with-pkgversion='Sourcery G++ Lite 2011.03-41' --with-bugurl=https://support.codesourcery.com/GNUToolchain/ --disable-nls --prefix=/opt/codesourcery --with-sysroot=/opt/codesourcery/arm-none-linux-gnueabi/libc --with-build-sysroot=/scratch/janisjo/arm-linux-lite/install/arm-none-linux-gnueabi/libc --with-gmp=/scratch/janisjo/arm-linux-lite/obj/host-libs-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/usr --with-mpfr=/scratch/janisjo/arm-linux-lite/obj/host-libs-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/usr --with-mpc=/scratch/janisjo/arm-linux-lite/obj/host-libs-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/usr --with-ppl=/scratch/janisjo/arm-linux-lite/obj/host-libs-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/usr --with-host-libstdcxx='-static-libgcc -Wl,-Bstatic,-lstdc++,-Bdynamic -lm' --with-cloog=/scratch/janisjo/arm-linux-lite/obj/host-libs-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/usr --with-libelf=/scratch/janisjo/arm-linux-lite/obj/host-libs-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/usr --disable-libgomp --enable-poison-system-directories --with-build-time-tools=/scratch/janisjo/arm-linux-lite/install/arm-none-linux-gnueabi/bin --with-build-time-tools=/scratch/janisjo/arm-linux-lite/install/arm-none-linux-gnueabi/bin Thread model: posix gcc version 4.5.2 (Sourcery G++ Lite 2011.03-41) ftiernan@ftiernan-Latitude-2120:~$ cd $HOME/olfs/u-boot ftiernan@ftiernan-Latitude-2120:~/olfs/u-boot$ ls u-boot-2009.08-omap ftiernan@ftiernan-Latitude-2120:~/olfs/u-boot$ cd u-boot-2009.08-omap ftiernan@ftiernan-Latitude-2120:~/olfs/u-boot/u-boot-2009.08-omap$ make HOSTCC=gcc CROSS_COMPILE=arm-none-linux-gnueabi- omap3logic_config make: * No rule to make target `omap3logic_config'. Stop. ftiernan@ftiernan-Latitude-2120:~/olfs/u-boot/u-boot-2009.08-omap$ ******* Just for reference here is a listing for the u-boot-2009.08-omap directory: ************* ftiernan@ftiernan-Latitude-2120:~/olfs/u-boot/u-boot-2009.08-omap$ ls api common CREDITS examples lib_avr32 lib_i386 lib_nios lib_sparc mkconfig post board config.mk disk fs lib_blackfin lib_m68k lib_nios2 MAINTAINERS nand_spl README CHANGELOG COPYING doc include libfdt lib_microblaze lib_ppc MAKEALL net rules.mk CHANGELOG-before-U-Boot-1.1.5 cpu drivers lib_arm lib_generic lib_mips lib_sh Makefile onenand_ipl tools ftiernan@ftiernan-Latitude-2120:~/olfs/u-boot/u-boot-2009.08-omap$

ftiernan

New Member
Posts:

22 Jun 2012 01:49 PM
As a follow-up to this question I see in the u-boot/include/configs directory that there are several possible .h files including "omap3_logic and omap3_zoom1 and omap3_zoom2. I am using zoom omap35x torpedo board. Perhaps I should use one of these. Please advise.

ftiernan

New Member
Posts:

22 Jun 2012 04:43 PM
Using the omap3_logic_config reference seemed logical since this was the closest to the Logic documentation. Doing so led to a successful result. However, at the next stage running "make ARCH=arm CROSS-COMPILE=arm-none-linux-gnueabi- all" gave a long output ending with the following (screen capture): Quote: arm-none-linux-gnueabi-ar crv liblogic.a logic.o logic-data.o logic-gpio.o a - logic.o a - logic-data.o a - logic-gpio.o make[1]: Leaving directory `/home/ftiernan/olfs/u-boot/u-boot-2009.08-omap/board/omap3/logic' make -C /home/ftiernan/olfs/u-boot/u-boot-2009.08-omap/cpu/arm_cortexa8/ u-boot.lds make[1]: Entering directory `/home/ftiernan/olfs/u-boot/u-boot-2009.08-omap/cpu/arm_cortexa8' make[1]: Nothing to be done for `u-boot.lds'. make[1]: Leaving directory `/home/ftiernan/olfs/u-boot/u-boot-2009.08-omap/cpu/arm_cortexa8' UNDEF_SYM=`arm-none-linux-gnueabi-objdump -x board/omap3/logic/liblogic.a lib_generic/libgeneric.a lib_generic/lzma/liblzma.a lib_generic/lzo/liblzo.a cpu/arm_cortexa8/libarm_cortexa8.a cpu/arm_cortexa8/omap3/libomap3.a lib_arm/libarm.a fs/cramfs/libcramfs.a fs/fat/libfat.a fs/fdos/libfdos.a fs/jffs2/libjffs2.a fs/reiserfs/libreiserfs.a fs/ext2/libext2fs.a fs/yaffs2/libyaffs2.a fs/ubifs/libubifs.a net/libnet.a disk/libdisk.a drivers/bios_emulator/libatibiosemu.a drivers/block/libblock.a drivers/dma/libdma.a drivers/fpga/libfpga.a drivers/gpio/libgpio.a drivers/hwmon/libhwmon.a drivers/i2c/libi2c.a drivers/input/libinput.a drivers/misc/libmisc.a drivers/mmc/libmmc.a drivers/mtd/libmtd.a drivers/mtd/nand/libnand.a drivers/mtd/onenand/libonenand.a drivers/mtd/ubi/libubi.a drivers/mtd/spi/libspi_flash.a drivers/net/libnet.a drivers/net/phy/libphy.a drivers/net/sk98lin/libsk98lin.a drivers/pci/libpci.a drivers/pcmcia/libpcmcia.a drivers/power/libpower.a drivers/spi/libspi.a drivers/rtc/librtc.a drivers/serial/libserial.a drivers/twserial/libtws.a drivers/usb/gadget/libusb_gadget.a drivers/usb/host/libusb_host.a drivers/usb/musb/libusb_musb.a drivers/video/libvideo.a drivers/watchdog/libwatchdog.a common/libcommon.a libfdt/libfdt.a api/libapi.a post/libpost.a \| sed -n -e 's/.$__u_boot_cmd_.$/-u\1/p'\|sort\|uniq`; cd /home/ftiernan/olfs/u-boot/u-boot-2009.08-omap && arm-none-linux-gnueabi-ld -Bstatic -T /home/ftiernan/olfs/u-boot/u-boot-2009.08-omap/cpu/arm_cortexa8/u-boot.lds -Ttext 0x80e80000 $UNDEF_SYM cpu/arm_cortexa8/start.o --start-group lib_generic/libgeneric.a lib_generic/lzma/liblzma.a lib_generic/lzo/liblzo.a cpu/arm_cortexa8/libarm_cortexa8.a cpu/arm_cortexa8/omap3/libomap3.a lib_arm/libarm.a fs/cramfs/libcramfs.a fs/fat/libfat.a fs/fdos/libfdos.a fs/jffs2/libjffs2.a fs/reiserfs/libreiserfs.a fs/ext2/libext2fs.a fs/yaffs2/libyaffs2.a fs/ubifs/libubifs.a net/libnet.a disk/libdisk.a drivers/bios_emulator/libatibiosemu.a drivers/block/libblock.a drivers/dma/libdma.a drivers/fpga/libfpga.a drivers/gpio/libgpio.a drivers/hwmon/libhwmon.a drivers/i2c/libi2c.a drivers/input/libinput.a drivers/misc/libmisc.a drivers/mmc/libmmc.a drivers/mtd/libmtd.a drivers/mtd/nand/libnand.a drivers/mtd/onenand/libonenand.a drivers/mtd/ubi/libubi.a drivers/mtd/spi/libspi_flash.a drivers/net/libnet.a drivers/net/phy/libphy.a drivers/net/sk98lin/libsk98lin.a drivers/pci/libpci.a drivers/pcmcia/libpcmcia.a drivers/power/libpower.a drivers/spi/libspi.a drivers/rtc/librtc.a drivers/serial/libserial.a drivers/twserial/libtws.a drivers/usb/gadget/libusb_gadget.a drivers/usb/host/libusb_host.a drivers/usb/musb/libusb_musb.a drivers/video/libvideo.a drivers/watchdog/libwatchdog.a common/libcommon.a libfdt/libfdt.a api/libapi.a post/libpost.a board/omap3/logic/liblogic.a --end-group -L /home/ftiernan/CodeSourcery/Sourcery_G++_Lite/bin/../lib/gcc/arm-none-linux-gnueabi/4.5.2/armv4t -lgcc -Map u-boot.map -o u-boot /home/ftiernan/CodeSourcery/Sourcery_G++_Lite/bin/../lib/gcc/arm-none-linux-gnueabi/4.5.2/armv4t/libgcc.a(_bswapsi2.o):(.ARM.exidx+0x0): undefined reference to `__aeabi_unwind_cpp_pr0' make: *** [u-boot] Error 1 ftiernan@ftiernan-Latitude-2120:~/olfs/u-boot/u-boot-2009.08-omap$ ftiernan@ftiernan-Latitude-2120:~/olfs/u-boot/u-boot-2009.08-omap$

ftiernan

New Member
Posts:

26 Jun 2012 11:40 AM
Using an earlier version of CodeSourcery (2009q3-67 4.4.1) seems to allow me to get past this point. - FT

richard.laborde@logicpd.com

Basic Member
Posts:247

26 Jun 2012 03:06 PM
Frank, That was the suggestion I just got from my Linux guru. I hope that fixed it.

ftiernan

New Member
Posts:

27 Jun 2012 12:21 PM
Richard, Thank you for the confirmation. I've moved through the Application Note 412 up to Step 11.4 (Create a New U-Boot Envirnoment) which is aborting as shown in the screen capture below (steps 11.2 - 11.4): Quote: Welcome to minicom 2.5 OPTIONS: I18n Compiled on May 2 2011, 00:39:27. Port /dev/ttyUSB0 Press CTRL-A Z for help on special keys *************************************************************** LogicLoader (c) Copyright 2002-2010, Logic Product Development, Inc. All Rights Reserved. LoLo Version: 2.4.15-OMAP3503 0001 SOM Model Number: SOMOMAP3530-20-1670AGCR SOM Part Number: 1013994 SOM Serial Number: 2110M00298 ************************************************************* losh> erase /dev/nand0 B2047 B1 erasing nand: 100% erased '/dev/nand0' start=0x7ff: len=0x1 bytes/blocks skipped 0 losh> ifconfig sm0 dhcp Waiting for link to come up... up Starting DHCP on sm0 .. losh> ifconfig sm0: up 100M full-duplex (25) sm0: mac: 00:08:ee:03:e1:48 ip: 192.168.0.198 mask: 255.255.255.0 gw: 192.168.0.1 losh> load elf /tftp/192.168.0.199:u-boot loading from /tftp/192.168.0.199:u-boot: ................................................................................ ELF section 0: download address: 0x80808000 load address: 0x80e80000 Copying ELF section 0 loaded 214704 @ 0x80e80000 Ram ...done file loaded losh> exec U-Boot 2009.08-rc2/ (Jun 26 2012 - 10:09:54) OMAP3530-GP ES3.1, CPU-OPP2 L3-165MHz OMAP3 Logic + LPDDR/NAND DRAM: 128 MB NAND: 256 MiB NAND: HW ECC selected Read production data: done Board: Torpedo Die ID #35ae002400000000040365f703015004 Part Number : 1013994 Model Name : SOMOMAP3530-20-1670AGCR-A Serial Number: 2110M00298 Net: smc911x-0 Warning: smc911x-0 MAC addresses don't match: Address in SROM is 00:08:ee:03:e1:48 Address in environment is 41:00:30:30:30:30 Hit any key to stop autoboot: 0 => set ipaddr 192.168.0.198 => set serverip 192.168.0.199 => set netmask 255.255.255.0 => save Saving Environment to NAND... Erasing Nand... Erasing at 0xffe0000 -- 100% complete. Writing to Nand... done => tftp ${loadaddr} uImage smc911x: initializing smc911x: phy initialized smc911x: MAC 41:00:30:30:30:30 Using smc911x-0 device TFTP from server 192.168.0.199; our IP address is 192.168.0.198 Filename 'uImage'. Load address: 0x81000000 Loading: ################################################################# ################################################################# ###################### done Bytes transferred = 777068 (bdb6c hex) => tftp ${rootfsaddr} uInitrd smc911x: initializing smc911x: phy initialized smc911x: MAC 41:00:30:30:30:30 Using smc911x-0 device TFTP from server 192.168.0.199; our IP address is 192.168.0.198 Filename 'uInitrd'. Load address: 0x81300000 Loading: ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ##################################### done Bytes transferred = 2181332 (2148d4 hex) => bootm ${loadaddr} ${rootfsaddr} ## Booting kernel from Legacy Image at 81000000 ... Image Name: Linux-2.6.32 Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 777004 Bytes = 758.8 kB Load Address: 00008000 Entry Point: 00008000 Verifying Checksum ... OK ## Loading init Ramdisk from Legacy Image at 81300000 ... Image Name: uboot ext2 ramdisk rootfs Image Type: ARM Linux RAMDisk Image (gzip compressed) Data Size: 2181268 Bytes = 2.1 MB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK Loading Kernel Image ... Unhandled Exception: exception mode: abort fsr: 0x00001808 far: 0x00008000 UNRECOVERABLE ERROR** There was a memory access exception at 0x00008000 of type 'extern fetch1' this may be due to an access to an invalid memory region, unaligned access, or a problem with the current memory map. Please check the memory layout section of your processor manual. For information about the active memory map type 'info cpu'. r00: 00008000 r01: 81000040 r02: 000bdb2b r03: 00000000 r04: 00008000 r05: 80e3fda4 r06: 81000000 r07: 00000001 r08: 80e3ffdc r09: 81000040 r10: 810bdb6c r11: 00000000 r12: 00000000 sp: 80e3fd30 lr: 80e8ba90 pc: 80e9d028 spsr:200001d3 cpsr:200001d7 bt: sp: 80e3fc6c (stack: 8007ea54 - 80081a54) (fp:00000000->80e3fc94, sp:80e3fc6c) I note that when I loaded U-Boot (step 11.3) i received a warning that the address in SROM was different from the address in "envirnoment" which I will look into. In the meantime if there is anything obviously wrong that jumps out please let me know. One other thing I should mention is that at step 10.4.3 (Repackage the Root File System) I needed to enclose the -n argument in quotes ( "uboot ext2 ramdisk rootfs") in order to get mkimage to run. I am not sure if this is a problem but thought I would mention it as it also resulted in a difference in the output when I loaded uInitrd in AN412 step 11.4 where AN412 shows Image Name: as blank whereas my output shows Image Name: uboot ext2 ramdisk rootfs. Again, thanks for any help you can provide -

ftiernan

New Member
Posts:

28 Jun 2012 04:41 PM
One additional thing that I note is that after running the "bootm" command (see previous post) the system response for the kernel image is: Load Address: 00008000 Entry Point: 000080000 versus the AN 412 example which shows: Load Address: 80008000 Entry Point: 80008000 Do my addresses indicate a problem? I re-made the uImage file and received following response to the "file" command: Quote: ftiernan@ftiernan-Latitude-2120:~/olfs/kernel/linux-2.6.32-logic$ file arch/arm/boot/uImage arch/arm/boot/uImage: u-boot legacy uImage, Linux-2.6.32, Linux/ARM, OS Kernel Image (Not compressed), 661836 bytes, Thu Jun 28 15:28:39 2012, Load Address: 0x00008000, Entry Point: 0x00008000, Header CRC: 0x9141FA6C, Data CRC: 0x9B9A53A4 Which also differs from the expected response shown in AN 412 and contains the questionable addresses so I am wondering if this is an indication that something is wrong with my making of uImage. Thanks for any suggestions!

ftiernan

New Member
Posts:

28 Jun 2012 07:27 PM
Richard, You can ignore the last couple of posts as I have must have done something wrong with earlier makes of uImage. I redid it recently with the following result to a "file" command with the expected address: Quote: ftiernan@ftiernan-Latitude-2120:~/olfs/kernel/linux-2.6.32-logic$ file arch/arm/boot/uImage arch/arm/boot/uImage: u-boot legacy uImage, Linux-2.6.32, Linux/ARM, OS Kernel Image (Not compressed), 2515244 bytes, Thu Jun 28 18:02:00 2012, Load Address: 0x80008000, Entry Point: 0x80008000, Header CRC: 0x5D1B79F9, Data CRC: 0x9217A976 ftiernan@ftiernan-Latitude-2120:~/olfs/kernel/linux-2.6.32-logic$ I now get the the Uncompressing Linux........... Stage of the response to bootm there is still something wrong as it seems to hang there and I still do not see "Hello World" but at least it is not aborting on bootm! I'll keep plugging away...

ftiernan

New Member
Posts:

17 Jul 2012 07:12 PM
Still hung at the bootm stage. Here is the complete sequence and output Quote: ftiernan@ftiernan-Latitude-2120:~$ kermit ?OpenSSL libraries do not match required version: . C-Kermit built with OpenSSL 1.0.0e 6 Sep 2011 . Version found OpenSSL 1.0.1 14 Mar 2012 OpenSSL versions prior to 1.0.0 must be the same. Set LD_LIBRARY_PATH for OpenSSL 1.0.0e 6 Sep 2011. Or rebuild C-Kermit from source on this computer to make versions agree. C-Kermit makefile target: linux+krb5+openssl Or if that is what you did then try to find out why the program loader (image activator) is choosing a different OpenSSL library than the one specified in the build. All SSL/TLS features disabled. C-Kermit 9.0.302 OPEN SOURCE:, 20 Aug 2011, for Linux+SSL+KRB5 Copyright (C) 1985, 2011, Trustees of Columbia University in the City of New York. Type ? or HELP for help. (/home/ftiernan/) C-Kermit>set modem type none (/home/ftiernan/) C-Kermit>set line /dev/ttyUSB0 (/home/ftiernan/) C-Kermit>set carrier-watch off (/home/ftiernan/) C-Kermit>set speed 115200 /dev/ttyUSB0, 115200 bps (/home/ftiernan/) C-Kermit>connect Connecting to /dev/ttyUSB0, speed 115200 Escape character: Ctrl-\ (ASCII 28, FS): enabled Type the escape character followed by C to get back, or followed by ? to see other options. ---------------------------------------------------- *************************************************************** LogicLoader (c) Copyright 2002-2010, Logic Product Development, Inc. All Rights Reserved. LoLo Version: 2.4.15-OMAP3503 0001 SOM Model Number: SOMOMAP3530-20-1670AGCR SOM Part Number: 1013994 SOM Serial Number: 2110M00298 *************************************************************** losh> erase /dev/nand0 B2047 B1 erasing nand: 100% erased '/dev/nand0' start=0x7ff: len=0x1 bytes/blocks skipped 0 losh> ifconfig sm0 dhcp Waiting for link to come up... up Starting DHCP on sm0 ... losh> load elf /tftp/192.168.0.199:u-boot loading from /tftp/192.168.0.199:u-boot: ....................................................................................................... ELF section 0: download address: 0x80808000 load address: 0x80e80000 Copying ELF section 0 loaded 216776 @ 0x80e80000 Ram ...done file loaded losh> exec U-Boot 2009.08-rc2/ (Jul 06 2012 - 18:38:56) OMAP3530-GP ES3.1, CPU-OPP2 L3-165MHz OMAP3 Logic + LPDDR/NAND DRAM: 128 MB NAND: 256 MiB NAND: HW ECC selected Read production data: done Board: Torpedo Die ID #35ae002400000000040365f703015004 Part Number : 1013994 Model Name : SOMOMAP3530-20-1670AGCR-A Serial Number: 2110M00298 Net: smc911x-0 Warning: smc911x-0 MAC addresses don't match: Address in SROM is 00:08:ee:03:e1:48 Address in environment is 41:00:30:30:30:30 Hit any key to stop autoboot: 0 => set ipaddr 192.168.0.198 => set serverip 192.168.0.199 => set netmask 255.255.255.0 => save Saving Environment to NAND... Erasing Nand... Erasing at 0xffe0000 -- 100% complete. Writing to Nand... done => tftp ${loadaddr} uImage smc911x: initializing smc911x: phy initialized smc911x: MAC 41:00:30:30:30:30 Using smc911x-0 device TFTP from server 192.168.0.199; our IP address is 192.168.0.198 Filename 'uImage'. Load address: 0x81000000 Loading: ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################# done Bytes transferred = 2494792 (261148 hex) => tftp ${rootfsaddr} uInitrd smc911x: initializing smc911x: phy initialized smc911x: MAC 41:00:30:30:30:30 Using smc911x-0 device TFTP from server 192.168.0.199; our IP address is 192.168.0.198 Filename 'uInitrd'. Load address: 0x81300000 Loading: ################################################################# ################################################################# ################################################################# ##### done Bytes transferred = 1022272 (f9940 hex) => bootm ${loadaddr} ${rootfsaddr} ## Booting kernel from Legacy Image at 81000000 ... Image Name: Linux-2.6.32 Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 2494728 Bytes = 2.4 MB Load Address: 80008000 Entry Point: 80008000 Verifying Checksum ... OK ## Loading init Ramdisk from Legacy Image at 81300000 ... Image Name: Image Type: ARM Linux RAMDisk Image (gzip compressed) Data Size: 1022208 Bytes = 998.3 kB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK Loading Kernel Image ... OK OK Starting kernel ... Uncompressing Linux............................................................................................................................................................. done, booting the kernel. I expect to see some output related to the startup of the kernel but there is nothing. Any suggestions or troubleshooting advice would be appreciated.

richard.laborde@logicpd.com

Basic Member
Posts:247

18 Jul 2012 03:26 PM
Frank, I'd recommend you use the Ask A Question system. It doesn't look like a lot of other suggestions are coming in.

steven.eckhoff@logicpd.com

Basic Member
Posts:192

13 Aug 2012 04:14 PM
Frank, I looked into this for you and it looks like you don't have your bootargs set. You can set them up manually or use a script in the U-Boot env by typing the following at the U-Boot prompt: run ramboot You may run into the same errors I got after doing this one of them was that the /etc/init.d was not allowing root to run it. You will need to go back to the step where you mounted the ramdisk.img and change the file permissions by typing the following: sudo chmod u+wx Additionally, you may need to create device nodes tty2, tty3 and tty4 sudo mknod -m 660 tty2 c 4 2 sudo mknod -m 660 tty3 c 4 3 sudo mknod -m 660 tty4 c 4 4 Best regards, Steven Eckhoff

ftiernan

New Member
Posts:

24 Aug 2012 01:04 PM
Thank you Steven, this worked! In case it might be useful for others, here are the bootargs that worked for my setup: Quote: => setenv bootargs display=15 console=ttyS0,115200 root=/dev/ram0 ramdisk_size=109000 => saveenv Saving Environment to NAND... Erasing Nand... Erasing at 0xffe0000 -- 100% complete. Writing to Nand... done Thanks again for your expert help! Frank

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