[U-Boot-Users] jffs2 fs for linux
Hi,
(I apologize if the list recieves this(similar) mail twice)
I have jffs2 fs image in flash and would like to mount it when linux asks for root fs.Linux gives out: ... Root-NFS: No NFS server available, giving up. VFS: Unable to mount root fs via NFS, trying floppy. Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0) <0>Rebooting in 5 seconds..ÿ
and command line is: Kernel command line: root=/dev/mtdblock2 rootfstype=jffs2 rw console=ttyS0,115200 mem=64M panic=5
Image is located at 0x2c0000 and u-boot can see it, too: Ub00t> ls Scanning JFFS2 FS: ...... done. drwxr-xr-x 0 Mon Feb 21 11:39:54 2005 bin drwxr-xr-x 0 Mon Feb 21 17:48:03 2005 dev drwxr-xr-x 0 Fri Feb 18 14:00:50 2005 etc drwxr-xr-x 0 Wed Feb 23 16:38:26 2005 lib lrwxrwxrwx 11 Tue Feb 22 07:58:53 2005 linuxrc -> bin/busybox drwxr-xr-x 0 Wed Dec 29 11:01:22 2004 mnt drwxr-xr-x 0 Tue Jul 20 10:38:27 2004 proc drwxr-xr-x 0 Thu Feb 17 21:58:50 2005 sbin drwxr-xr-x 0 Wed Feb 23 17:40:11 2005 staging drwxr-xr-x 0 Wed Feb 23 23:27:06 2005 tmp drwxr-xr-x 0 Wed Feb 23 16:40:41 2005 usr drwxr-xr-x 0 Tue Jul 20 10:38:41 2004 var
But how do I supply this info to u-boot when booting linux? Is 'fsload' the right way to go? But I would still like to have kernel separated from fs image...
Using kernel 2.6.9 here.
regards, hk
Hi Hinko,
I had a similar problem. If you make sure that your Flash is programmed similar to the following order then it should work with the setup you describe:
Image1 Addr1 u-boot <-- mounted as /dev/mtdblock0 Image2 Addr2 kernel <-- mounted as /dev/mtdblock1 Image3 Addr3 jffs2 <-- mounted as /dev/mtdblock2
Hope this helps, Alan.
-- Original Message -- From: Hinko Kocevar hinko.kocevar@iskramedical.si To: uboot u-boot-users@lists.sourceforge.net Subject: [U-Boot-Users] jffs2 fs for linux Date: Fri, 25 Feb 2005 15:31:44 +0100
Hi,
(I apologize if the list recieves this(similar) mail twice)
I have jffs2 fs image in flash and would like to mount it when linux asks for root fs.Linux gives out: ... Root-NFS: No NFS server available, giving up. VFS: Unable to mount root fs via NFS, trying floppy. Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0) <0>Rebooting in 5 seconds..ÿ
and command line is: Kernel command line: root=/dev/mtdblock2 rootfstype=jffs2 rw console=ttyS0,115200 mem=64M panic=5
Image is located at 0x2c0000 and u-boot can see it, too: Ub00t> ls Scanning JFFS2 FS: ...... done. drwxr-xr-x 0 Mon Feb 21 11:39:54 2005 bin drwxr-xr-x 0 Mon Feb 21 17:48:03 2005 dev drwxr-xr-x 0 Fri Feb 18 14:00:50 2005 etc drwxr-xr-x 0 Wed Feb 23 16:38:26 2005 lib lrwxrwxrwx 11 Tue Feb 22 07:58:53 2005 linuxrc -> bin/busybox drwxr-xr-x 0 Wed Dec 29 11:01:22 2004 mnt drwxr-xr-x 0 Tue Jul 20 10:38:27 2004 proc drwxr-xr-x 0 Thu Feb 17 21:58:50 2005 sbin drwxr-xr-x 0 Wed Feb 23 17:40:11 2005 staging drwxr-xr-x 0 Wed Feb 23 23:27:06 2005 tmp drwxr-xr-x 0 Wed Feb 23 16:40:41 2005 usr drwxr-xr-x 0 Tue Jul 20 10:38:41 2004 var
But how do I supply this info to u-boot when booting linux? Is 'fsload' the right way to go? But I would still like to have kernel
separated from fs image...
Using kernel 2.6.9 here.
regards, hk
-- hinko <dot> kocevar <at> iskramedical <dot> si Hinko Kocevar, embedded systems developer Iskra Medical d.o.o., Stegne 23, 1k LJ, SLO-EU
"Aì rén" | [Analects XII:22]
SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_ide95&alloc_id%14396&op=click _______________________________________________ U-Boot-Users mailing list U-Boot-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users
Alan Casey wrote:
Hi Hinko,
I had a similar problem. If you make sure that your Flash is programmed similar to the following order then it should work with the setup you describe:
Image1 Addr1 u-boot <-- mounted as /dev/mtdblock0 Image2 Addr2 kernel <-- mounted as /dev/mtdblock1 Image3 Addr3 jffs2 <-- mounted as /dev/mtdblock2
Hmm, this is just like my setup in flash. 0x00000000 - 0x000c0000 uboot+env 0x000c0000 - 0x002c0000 kernel 0x002c0000 - 0x02000000 rootfs(jffs2)
But as you can see from my previous post, kernel does not mount the rootfs as expected.
Are there any special/other bits I have to setup?
The same layout works on another pxa platform I have, but it is not running u-boot...
regards, hk
Hi Hinko,
Another thing you could try is when running U-Boot to set your bootargs environment variable to match your kernel command line (i.e. add rootfstype=jffs2):
setenv bootargs root=/dev/mtdblock2 rootfstype=jffs2 console=ttyS0,115200 mem=64M panic=5
I've noticed that if i dont set 'rootfstype=jffs2' in the bootargs variable i get the same error message you were seeing for some reason.
Hope this helps, Alan.
-- Original Message -- From: Hinko Kocevar hinko.kocevar@iskramedical.si To: alan.casey5@mail.dcu.ie Cc: uboot u-boot-users@lists.sourceforge.net Subject: Re: [U-Boot-Users] jffs2 fs for linux Date: Fri, 25 Feb 2005 18:37:59 +0100
Alan Casey wrote:
Hi Hinko,
I had a similar problem. If you make sure that your Flash is programmed similar to the following order then it should work with the setup you describe:
Image1 Addr1 u-boot <-- mounted as /dev/mtdblock0 Image2 Addr2 kernel <-- mounted as /dev/mtdblock1 Image3 Addr3 jffs2 <-- mounted as /dev/mtdblock2
Hmm, this is just like my setup in flash. 0x00000000 - 0x000c0000 uboot+env 0x000c0000 - 0x002c0000 kernel 0x002c0000 - 0x02000000 rootfs(jffs2)
But as you can see from my previous post, kernel does not mount the rootfs as expected.
Are there any special/other bits I have to setup?
The same layout works on another pxa platform I have, but it is not running u-boot...
regards, hk
-- hinko <dot> kocevar <at> iskramedical <dot> si Hinko Kocevar, embedded systems developer Iskra Medical d.o.o., Stegne 23, 1k LJ, SLO-EU
"Aì rén" | [Analects XII:22]
SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_ide95&alloc_id%14396&op=click _______________________________________________ U-Boot-Users mailing list U-Boot-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users
In message 421F6277.6030604@iskramedical.si you wrote:
But as you can see from my previous post, kernel does not mount the rootfs as expected.
It would definitely be helpful if you showed us the full boot messages of your Linux kernel, or at lest the part which includes the MTD initalization and flash partitioning.
But please NOT on this list, it is off topic here.
Best regards,
Wolfgang Denk
Dear Hinko,
in message 421F36D0.4060703@iskramedical.si you wrote:
(I apologize if the list recieves this(similar) mail twice)
Yes, we did :-(
I have jffs2 fs image in flash and would like to mount it when linux asks for root fs.Linux gives out:
This is actually NOT related to U-Boot, so it's off topic on this list.
and command line is: Kernel command line: root=/dev/mtdblock2 rootfstype=jffs2 rw console=ttyS0,115200 mem=64M panic=5
...
But how do I supply this info to u-boot when booting linux?
You don't supply any inforation to U-Boot, it's the LInux kernel who needs to know where to find the root filesystem, Assuming your flash partitioning in Linux is correct, then the "root=/dev/mtdblock2" should be all you need.
Best regards,
Wolfgang Denk
Wolfgang Denk wrote:
Yes, we did :-(
I'm having mail client problems, again :(. I'm really sorry for this.
This is actually NOT related to U-Boot, so it's off topic on this list.
Yes it is kinda off topic, but I suspected that u-boot was "rejcting/ignoring" the rootfs image in the flash... so I decided to post here first to see if there are any steps that need to be taken on the rootfs before using jffs2 with u-boot.
From the posts I can conclude that this problem has nothig to do with u-boot.
regards, hk
participants (3)
-
Alan Casey -
Hinko Kocevar -
Wolfgang Denk