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Re: [ANNOUNCE] Red Hat Linux 9 XFS DVD Released

To: linux-xfs@xxxxxxxxxxx
Subject: Re: [ANNOUNCE] Red Hat Linux 9 XFS DVD Released
From: Mogens Kjaer <mk@xxxxxx>
Date: Fri, 11 Apr 2003 14:56:23 +0200
In-reply-to: <3E94C880.2070003@xxxxxxxxxx>
Organization: Carlsberg Laboratory
References: <3E94C880.2070003@xxxxxxxxxx>
Sender: linux-xfs-bounce@xxxxxxxxxxx
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.2.1) Gecko/20030225
Stefan Smietanowski wrote:
...

There is a bug with using GRUB as a bootloader. Either use LILO or
use one of the following workarounds:

* Make a seperate /boot partition and use some other filesystem than
  xfs on it. That way you won't get the issue and you can use xfs
  without getting any problems.

* Run the installer all the way until it asks if you should create
  a boot disk or not.
  If you're using the graphical installer press CTRL-ALT-F5.
  If you're using the text installer, press ALT-F5.
  You'll see an interesting page ending with a GRUB error
  "Can't find file".
  Above it are two lines. The first one is something like:
  "root (hd0,0)"
  After that you'll find a line with something like this (these lines
  are different depending on your type of hard drive and partitioning:
  "install /boot/grub/stage1 d .........."
  Write both lines down literally. Note that there exists a space
  after "(hd0)" in some places and not in others. Make sure you really
  get it right.
  Go back to the installer by using ALT-F7 if using the graphical
  installer or ALT-F1 if using text.

Instead of switching back to the installer, you can also switch
to a shell (ALT-F2), and do a:

chroot /mnt/sysimage
/sbin/grub --batch --nofloppy --device-map=/boot/grub/device.map

and give the two commands again (in my case):

root (hd0,0)
install /boot/grub/stage1 d (hd0) /boot/grub/stage2 p (hd0,0)/boot/grub/grub.conf
quit

and ctrl-D to exit chroot.

(the install ... line is one line).

Then you can go back to the installer.

Interestingly, the command above is exactly the same the
installer gives in stage2.img /usr/lib/booty/bootloaderInfo.py
one has:

...
            rhpl.executil.execWithRedirect( "/sbin/grub-install",
                                    ["/sbin/grub-install", "--just-copy"],
stdout = "/dev/tty5", stderr = "/dev/tty5",
                                    root = instRoot)

            # get the stage files synced to disk
            import isys
            isys.sync()
            isys.sync()
            isys.sync()

            # really install the bootloader
            p = os.pipe()
            os.write(p[1], cmd + '\n')
            os.close(p[1])
            rhpl.executil.execWithRedirect('/sbin/grub' ,
                                   [ "grub",  "--batch", "--no-floppy",

"--device-map=/boot/grub/device.map" ],
                                   stdin = p[0],
stdout = "/dev/tty5", stderr = "/dev/tty5",
                                   root = instRoot)
            os.close(p[0])

...

I'm wondering if these sync's aren't enough on
an XFS filesystem... Hm, I'll try and put 100 extra...

Mogens

--
Mogens Kjaer, Carlsberg A/S, Computer Department
Gamle Carlsberg Vej 10, DK-2500 Valby, Denmark
Phone: +45 33 27 53 25, Fax: +45 33 27 47 08
Email: mk@xxxxxx Homepage: http://www.crc.dk


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