Swapped disks and now stuck in the mountroot> prompt

roberto_at_redix.it
Date: 01/15/04

  • Next message: Grzegorz Czaplinski: "Re: Swapped disks and now stuck in the mountroot> prompt" 
    Date: Thu, 15 Jan 2004 09:43:17 +0100 (CET)
To: freebsd-newbies@freebsd.org

    Date: 15 jan 2004

    I've installed FreeBSD 4.9 on a ide0:0 (primary IDE, master hd) then
    ported the hard disk on a second PC and installed as ide1:0 (secondary
    IDE, master hd) without update the "/etc/fstab" file.

    When booting the kernel start probing devices, I see the disk as "ad2"
    then the kernel halts when trying to mount the root file system with the
    following message:

           mount root from ufs:/dev/ad0s1a
           root mount failed: 6

    At the prompt I've tried with "ufs:/dev/ad2s1a", now the right device, but
    it does not work.

    The solution is to instruct the kernel with the right device: but ad2s1a
    seems to be wrong...

    After several attempts I discover that the kernel must be started with the
    option "-a": with this flag the device "ufs:/dev/ad2s1a" is accepted by
    "mountroot> " and the boot proceed. Than I can change the fstab
    accordingly to make the change permanent.

    My question are:
     1) I've made any mistake ?
     2) Without the boot "-a" flag, why the kernel ask me a device and even it
    is the correct one vfs_conf.c:vfs_mountroot_ask() give me the error code
    6?

    Thanks
    Roberto

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  • Next message: Grzegorz Czaplinski: "Re: Swapped disks and now stuck in the mountroot> prompt"

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