[Buildroot] Buildroot for powerpc, no prompt + OpenSSH login

Clément Foucher Clement.FOUCHER at unice.fr
Thu Jan 21 14:29:13 UTC 2010


I'm using buildroot to create a filesystem for my Linux embedded on a Xilinx ml507 board (the processor is a PowerPC 440)
Before using buildroot, I used the default filesystem shipped with ELDK, and it worked, but I hadn't the default applications I needed (particularly OpenSSH).

So I tried to create a filesystem including OpenSSH using buildroot. Then, when I launched the Linux, I saw all the startup messages, but never get the prompt that would allow me to enter commands on the console.

I though that it could be a problem in the configuration of OpenSSH, so I retried with a standard configuration, just setting my architecture (powerpc/440) in xconfig, not adding any options, but I got the same problem.

As a last test, I activated console information in order to force the getty to ttyUL0, witch is the port that I use for the console output (the one where I see the boot messages, that are correct), but it didn't changed anything.

Here are the boot messages I got for the bare installation (without OpenSSH) :

zImage starting: loaded at 0x00400000 (sp: 0x00576eb0)
Allocating 0x30f521 bytes for kernel ...
gunzipping (0x00000000 <- 0x0040d000:0x00575df1)...done 0x2f2028 bytes

Linux/PowerPC load: console=ttyUL0 ip= root=/dev/xsa2 rw
Finalizing device tree... flat tree at 0x583300
Using Xilinx Virtex440 machine description
Linux version 2.6.31 (foucher at gentiane) (gcc version 4.2.2) #2 PREEMPT Thu Jan 2
1 10:16:43 CET 2010
Zone PFN ranges:
  DMA      0x00000000 -> 0x00010000
  Normal   0x00010000 -> 0x00010000
Movable zone start PFN for each node
early_node_map[1] active PFN ranges
    0: 0x00000000 -> 0x00010000
MMU: Allocated 1088 bytes of context maps for 255 contexts
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 65024
Kernel command line: console=ttyUL0 ip= root=/dev/xsa2 rw
PID hash table entries: 1024 (order: 10, 4096 bytes)
Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
Memory: 256384k/262144k available (2868k kernel code, 5424k reserved, 120k data,
 113k bss, 128k init)
Kernel virtual memory layout:
  * 0xffffe000..0xfffff000  : fixmap
  * 0xfde00000..0xfe000000  : consistent mem
  * 0xfde00000..0xfde00000  : early ioremap
  * 0xd1000000..0xfde00000  : vmalloc & ioremap
clocksource: timebase mult[a00000] shift[22] registered
Console: colour dummy device 80x25
Mount-cache hash table entries: 512
NET: Registered protocol family 16
bio: create slab <bio-0> at 0
NET: Registered protocol family 2
IP route cache hash table entries: 2048 (order: 1, 8192 bytes)
TCP established hash table entries: 8192 (order: 4, 65536 bytes)
TCP bind hash table entries: 8192 (order: 3, 32768 bytes)
TCP: Hash tables configured (established 8192 bind 8192)
TCP reno registered
NET: Registered protocol family 1
ROMFS MTD (C) 2007 Red Hat, Inc.
msgmni has been set to 501
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
84000000.serial: ttyUL0 at MMIO 0x84000003 (irq = 16) is a uartlite
console [ttyUL0] enabled
loop: module loaded
xsysace 83600000.sysace: Xilinx SystemACE revision 1.0.12
xsysace 83600000.sysace: capacity: 1019088 sectors
 xsa: xsa1 xsa2
Xilinx SystemACE device driver, major=254
Device Tree Probing 'ethernet'
xilinx_lltemac 81c00000.ethernet: MAC address is now  0: a:35:92:8f: 0
xilinx_lltemac 81c00000.ethernet: XLlTemac: using DMA mode.
XLlTemac: DCR address: 0x80
XLlTemac: buffer descriptor size: 32768 (0x8000)
XLlTemac: Allocating DMA descriptors with kmalloc
XLlTemac: (buffer_descriptor_init) phy: 0xf948000, virt: 0xcf948000, size: 0x800
XTemac: PHY detected at address 7.
eth0: Dropping NETIF_F_SG since no checksum feature.
xilinx_lltemac 81c00000.ethernet: eth0: Xilinx TEMAC at 0x81C00000 mapped to 0xD
1028000, irq=18
mice: PS/2 mouse device common for all mice
TCP cubic registered
NET: Registered protocol family 17
eth0: XLlTemac: Options: 0x3fa
eth0: XLlTemac: allocating interrupt 20 for dma mode tx.
eth0: XLlTemac: allocating interrupt 19 for dma mode rx.
eth0: XLlTemac: speed set to 1000Mb/s
eth0: XLlTemac: Send Threshold = 24, Receive Threshold = 4
eth0: XLlTemac: Send Wait bound = 254, Receive Wait bound = 254
IP-Config: Guessing netmask
IP-Config: Complete:
     device=eth0, addr=, mask=, gw=,
     host=, domain=, nis-domain=(none),
     bootserver=, rootserver=, rootpath=
kjournald starting.  Commit interval 5 seconds
EXT3-fs warning: maximal mount count reached, running e2fsck is recommended
EXT3 FS on xsa2, internal journal
EXT3-fs: recovery complete.
EXT3-fs: mounted filesystem with writeback data mode.
VFS: Mounted root (ext3 filesystem) on device 254:2.
Freeing unused kernel memory:`Initializing random number generator... done.
Starting network...
ip: RTNETLINK answers: File exists

... And it stops here.

What should I do?

As a second problem, when I tried the OpenSSH version, even if I couldn't have the prompt, I tried to connect to the OpenSSH of my card.
It seems to work correctly, but it ask me for a password. I though that there wasn't any password ?
I tried to log in as root and as default, but nothing worked.

So is there a default password to log in?

Thank you.

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