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Linux - Embedded & Single-board computer This forum is for the discussion of Linux on both embedded devices and single-board computers (such as the Raspberry Pi, BeagleBoard and PandaBoard). Discussions involving Arduino, plug computers and other micro-controller like devices are also welcome.


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Old 02-18-2010, 02:59 PM   #1
Registered: Mar 2006
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buildroot rootfs just hangs

Hi all,
I'm trying to install a rootfs on a usbpen for an embedded board. The board has (I think) redboot which sets linux up to the loading of the file system. I was given a usbpen with an example fs which works fine. Via rs-232 I can log in, run programmes etc. However I was told to load more software packages I should use buildroot to add packages and updates. Unfortunately no other advise was give. So I though I'd try to build my own, basic system at first. So I selected ARM and 920T as the processor and selected tar the root file system to produce a image for the usbpen, then set it away to compile. I unzipped the image to my pen and started the system. Via USB I saw it load the bootloader then report on my root
scsi 0:0:0:0 Direct-Access Intergral Courier PMAP PQ : 0 ANSI : 0 CSS
SCSI device sda: 3913728 512-byte hdwr sectors (2004 MB)
sda: assuming drive cache: write through sda:sda1
sd 0:0:0:0: attached scsi removeable disk sda
EXT-fs warning mounting unchecked fs, running e2fsck is recommend
VFS: Mounted root (ext2 filesyfs),
Freeing init memory: 436k

So it seems to mount my rootfs? However I can't login or open folders etc via the rs232 connection. Is there something I need to do in buildroot so it knows to use the comms port to speak to the host? Thanks
Old 02-21-2010, 11:34 AM   #2
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Hard to know what is in your root filesystem, especially including the init script. Perhaps adding an argument to the kernel like 'console=/dev/ttyS0' would do what you want. See the Linux Serial Console HOWTO for more detailed information.
--- rod.


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