file system not recognized when upgrading kernel from 2.4.18 to 2 .4.20

From: Shen Aaron-r62966 (Aaron.Shen_at_freescale.com)
Date: 07/30/04

  • Next message: Prakash K. Cheemplavam: "Re: Recent 2.6 kernels can't read an entire ATAPI CD or DVD" 
    To: "Linux-Kernel (E-mail)" <linux-kernel@vger.kernel.org>
Date:	Fri, 30 Jul 2004 14:20:44 +0800

    Hi,

      Now my Embeded linux system is using the 2.4.18 kernel. And everything is ok including
    scaning the cramfs and jffs2 rootdisk.

      But after I upgrade the kernel to be 2.4.20 and merged my modification to it, the rootdisk
    will not be recognized correctly. For cramfs rootdisk, it will say "cramfs: wrong magic". And
    for jffs2 rootdisk, it will scan each eraseblock and finally says no block is formatted.

      I havn't modified any codes in linux/fs/ and they should work fine. So I suspect the function
    like "read_super" may not work for the old rootdisk? But I havn't seen any notice which says
    the "mkcramfs" and "mkjffs2" need to be rebuild.

      Anybody has such experience? Looking forward to your feedback....

      Thanks!

    Best Regards!
    Feng Shen (Aaron)

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  • Next message: Prakash K. Cheemplavam: "Re: Recent 2.6 kernels can't read an entire ATAPI CD or DVD"