Re: / stuck in read-only mode. can't mount or remount any fs as root

From: David Mandelberg (mandelbergd_at_eth0.is-a-geek.org)
Date: 01/26/05

  • Next message: Al Bayrouni: "azerty qwerty" 
    Date: Wed, 26 Jan 2005 14:30:09 -0500
To: dank@hwr.arizona.edu

    dank@hwr.arizona.edu wrote:
    > I had some disk errors and shutdown to reseat cables.
    > The system, as-is, has been running and reboot more than once
    > with no problems before now. Perhaps the shutdown wasn't
    > graceful??
    Probably, but this seems worse than that. Was there any lightning or other
    electrical surges near the computer?

    > On boot up the / partition came up read-only and /var /proc etc.
    > all are unmounted. fsck is run on all the disks and the
    > system disk is clean for all 3 partitions hda1 (/) hda2 (/var)
    > and hda3 (/t0) fsck not run on hda5 (should be swap). All of
    > my filesystems appear to be ext2.
    Swap doesn't need to be checked, so that's ok.

    > 2 other disks on a PCI controller are giving DMA errors and
    > interrupt errors. I don't think this is related.
    Try removing the PCI card, if it's broken it might be causing problems with the
    other controller(s).

    > boot sequence drops me to a maint. root login prompt and
    > I log in. But, trying to mount /var or anything else fails
    > with this error: "mount: only root can do that"
    > Same error when I try to remount / rw.
    Could you post your /etc/passwd file? If it has password hashes in it you can
    remove those. Also post the output of "id" when in maintenance mode please.

    > If I go to a normal user level login prompt neither root nor any other
    > user can login. Only at the maint prompt can I get logged in.
    That sounds somewhat normal for / being mounted ro and no /proc.

    > I can boot from a knoppix CD
    This is probably going to be very useful. 

    --
David Mandelberg
mandelbergd@eth0.is-a-geek.org



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