Re: Grub

From: Tim (tim_at_mail.localhost.invalid)
Date: 07/09/05

  • Next message: Tajin: "Re: Grub" 
    Date: Sat, 09 Jul 2005 16:00:55 +0900

    On Fri, 08 Jul 2005 23:56:18 -0400, Tajin wrote:

    > I am using RH FC3, I made a kernel update with synaptics, I mark update
    > for the new Kernel and remove the Old at the same time

    VERY BAD IDEA! If the new kernel doesn't work, you're hard pressed to
    boot back into something that used to work.

    The standard advice is to \always install kernels in addition to the
    existing kernel, and remove older ones after you're sure everything works
    fine. Personally, I always keep the latest and previous versions
    installed, only removing even older versions.

    > now when machine boots up grub shows only windows choice, I did Linux
    > rescue, this is the sequence go on text mode up to /sbin/loader
    > go on graphics for Language-English, and keyboard-english Go to start
    > network interfaces, and DHCP config indicates mount /mnt/sysimage

    At which point you look in that directory, and find the files you want to
    edit (that's one approach, at least).

    You want to read the GRUB documents, they're available somewhere on the
    net. There's a chance that all you need to do is edit the
    /boot/grub/grub.conf file to include a reference to your Linux
    installation, mine's got an entry like this:

    title Fedora Core (2.6.11-1.35_FC3) (25 June 2005)
            root (hd0,0)
            kernel /vmlinuz-2.6.11-1.35_FC3 ro root=/dev/VolGroup00/LogVol00
            initrd /initrd-2.6.11-1.35_FC3.img

    If you want to avoid a lot of rebooting, you can cold boot, wait for the
    GRUB menu to appear, use the hotkeys to go into editing mode, and type in
    lines like the above, one after another, using the tab key to complete
    options (e.g. type in kernel /vmlinuz then tab to find your options,
    likewise tab after the root=/dev/Vol...) to boot manually. If you fail,
    you end up back in the editor, if you succeed you manage to boot up and
    you can edit your grub.conf file to have the same contents as your command
    lines.

    I can't give much more advice than this, I've only had to do those two
    things a couple of times, and quite some time ago. 

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