The linux-mips list is the right place for this question.
[1] Do you have serial console or other appropriate device enabled in the
build for your board?
[2] In the arch specific init code, did you specify the default console
device in the code?
[3] Did you set the console on the kernel command line?
This sounds like a simple oversight somewhere. The kernel is very unhappy
without the console.
-S-
On Thu, 15 May 2008, abhiruchi.g@xxxxxxxxxxxxx wrote:
Hi,
My kernel hangs by initializing the system. My target is Alchemy DB1200. I use crosstool-ng to build MIPS cross toolchain and ptxdist to build ext2 filesystem.
kernel version:linux-2.6.22
I added some printk's linux/init/main.c to see what happens.
#############################################################
.
.
.
(void) dup(0);
(void) dup(0);
/*
* We try each of these until one succeeds.
*
* The Bourne shell can be used instead of init if we are
* trying to recover a really broken machine.
*/
if (execute_command)
run_init_process(execute_command);
printk("before /sbin/init\n");
run_init_process("/sbin/init");
printk("before /etc/init\n");
run_init_process("/etc/init");
printk("before /bin/init\n");
run_init_process("/bin/init");
printk("before /bin/sh\n");
run_init_process("/bin/sh");
it hangs after /sbin/init
What could be the problem?
I tried to give init="/sbin/abhi"
"abhi" is an executable file with printf statement.
but kernel stops after :
Waiting 10sec before mounting root device...
scsi 0:0:0:0: Direct-Access Ut163 USB2FlashStorage 0.00 PQ: 0 ANSI: 2
sd 0:0:0:0: [sda] 983808 512-byte hardware sectors (504 MB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Assuming drive cache: write through
sd 0:0:0:0: [sda] 983808 512-byte hardware sectors (504 MB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Assuming drive cache: write through
sda:<7>usb-storage: queuecommand called
sda1
sd 0:0:0:0: [sda] Attached SCSI removable disk
sd 0:0:0:0: Attached scsi generic sg0 type 0
VFS: Mounted root (ext2 filesystem) readonly.
mount_block_root: name=/dev/root fs=ext2 flags=32769
Freeing unused kernel memory: 156k freed
Warning: unable to open an initial console.
---ag: /sbin/abhi
