mailarchive of the ptxdist mailing list
 help / color / mirror / Atom feed
* [ptxdist] linux boot problem
@ 2013-12-18 20:45 Antonio Righettini
  2013-12-19  8:20 ` Jürgen Beisert
  0 siblings, 1 reply; 2+ messages in thread
From: Antonio Righettini @ 2013-12-18 20:45 UTC (permalink / raw)
  To: ptxdist


[-- Attachment #1.1: Type: text/plain, Size: 1308 bytes --]

Hi

 

I have made an bootable USB via dd command from hd.img image for a 386
architecture.

The grub run, the kernel start to boot but when root file system has to be
mount on root  I see a kernel panic.

I have put the right file system in the kernel (not module).

The last part of console output is :

 

sdb: sdb1

[    3.016140] sd 33:0:0:0: [sdb] Attached SCSI removable disk

[   11.119960] VFS: Cannot open root device "sdb1" or unknown-block(8,17):
error -2

[   11.121978] Please append a correct "root=" boot option; here are the
available partitions:

[   11.124194] 0800          524288 sda  driver: sd

[   11.125492] 0810         3910180 sdb  driver: sd

[   11.126782]   0811          298976 sdb1
00000000-0000-0000-0000-000000000000

[   11.128686] Kernel panic - not syncing: VFS: Unable to mount root fs on
unknown-block(8,17)

[   11.130895] Pid: 1, comm: swapper/0 Not tainted 3.5.7-Anto-Embedded #12

 

 

My impression is : kernel see the partition but can't read it.

The other strange thing is UUID number  00000000-0000-0000-0000-000000000000
but if I mount the usb key in a linux machine the number is right and not 0

 

The kernel command line is :

 

root=/dev/sdb1 console=ttyS1,115200 rootdelay=10

 

do you have same ideas

 

regards, Antonio Righettini

 

 

 

 

 


[-- Attachment #1.2: Type: text/html, Size: 5056 bytes --]

[-- Attachment #2: Type: text/plain, Size: 48 bytes --]

-- 
ptxdist mailing list
ptxdist@pengutronix.de

^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: [ptxdist] linux boot problem
  2013-12-18 20:45 [ptxdist] linux boot problem Antonio Righettini
@ 2013-12-19  8:20 ` Jürgen Beisert
  0 siblings, 0 replies; 2+ messages in thread
From: Jürgen Beisert @ 2013-12-19  8:20 UTC (permalink / raw)
  To: ptxdist; +Cc: Antonio Righettini

Hi Antonio,

On Wednesday 18 December 2013 21:45:49 Antonio Righettini wrote:
> [...]
> root=/dev/sdb1 console=ttyS1,115200 rootdelay=10
>
> do you have same ideas

Maybe try "rootwait" instead of "rootdelay=10". What filesystem do you are 
using on your "/dev/sdb1"? Is it enabled in your kernel?

jbe

-- 
Pengutronix e.K.                              | Juergen Beisert             |
Linux Solutions for Science and Industry      | http://www.pengutronix.de/  |

-- 
ptxdist mailing list
ptxdist@pengutronix.de

^ permalink raw reply	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2013-12-19  8:20 UTC | newest]

Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2013-12-18 20:45 [ptxdist] linux boot problem Antonio Righettini
2013-12-19  8:20 ` Jürgen Beisert

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox