Re: GRUB 2 does not show new kernel :(

[Bean <bean123@126.com>]

On Wed, Jun 27, 2007 at 07:35:02PM +0530, shirish wrote:
> >>
> >> --
> >> Bean
> >>
> >>
> >>
> >>
> >>
> >> ------------------------------
> >>
> >> Message: 8
> >> Date: Wed, 27 Jun 2007 10:18:09 +0800
> >> From: Bean <bean123@126.com>
> >> Subject: Re: GRUB 2 does not show new kernel :(
> >> To: The development of GRUB 2 <grub-devel@gnu.org>
> >> Message-ID: <20070627021809.GA2701@ws3.vdp.com>
> >> Content-Type: text/plain; charset=us-ascii
> >>
> >> On Wed, Jun 27, 2007 at 01:18:41AM +0530, shirish wrote:
> >> > Hi all,
> >> >         I thought long & hard before making this post. I tried all
> >> > the avenues , the #GRUB channel on IRC, the forums at ubuntuforums (
> >> > 136 views at this point in time but no answers :( ) . hence made long
> >> > posts about the issue at
> >> > http://ubuntuforums.org/showthread.php?t=484856
> >> >
> >> > If anybody knows what I need to do or look for , please lemme know.
> 
> 
> 
> 
> 
> >Message: 3
> >Date: Wed, 27 Jun 2007 14:39:35 +0800
> >From: Bean <bean123@126.com>
> >Subject: Re: GRUB 2 does not show new kernel :(
> >To: The development of GRUB 2 <grub-devel@gnu.org>
> >Message-ID: <20070627063935.GA2440@ws3.vdp.com>
> >Content-Type: text/plain; charset=us-ascii
> >
> >On Wed, Jun 27, 2007 at 11:55:07AM +0530, shirish wrote:
> >> Hi all,
> >>       Mr. Bean (chuckles knowing a different bean :) ) , first of all
> >> thank you for your time. You are right as far as unifont.pff is
> >> concerned.  I just did a search and saw that unifont is not installed.
> >> Have installed it now. But still the same issue is there.
> >>
> >> btw I have two hard disks :-
> >>
> >> shirish@ubuntu:~$ sudo fdisk -l
> >> [sudo] password for shirish:
> >>
> >> Disk /dev/sda: 160.0 GB, 160041885696 bytes
> >> 255 heads, 63 sectors/track, 19457 cylinders
> >> Units = cylinders of 16065 * 512 = 8225280 bytes
> >>
> >>   Device Boot      Start         End      Blocks   Id  System
> >> /dev/sda1   *           1        1912    15358108+   7  HPFS/NTFS
> >> /dev/sda2            1913       19457   140930212+   f  W95 Ext'd (LBA)
> >> /dev/sda5            1913        6083    33503526    7  HPFS/NTFS
> >> /dev/sda6            6084       10254    33503526    7  HPFS/NTFS
> >> /dev/sda7           10255       14425    33503526    7  HPFS/NTFS
> >> /dev/sda8           14426       18596    33503526    7  HPFS/NTFS
> >> /dev/sda9           18597       19457     6915951    7  HPFS/NTFS
> >>
> >> Disk /dev/sdb: 80.0 GB, 80060424192 bytes
> >> 255 heads, 63 sectors/track, 9733 cylinders
> >> Units = cylinders of 16065 * 512 = 8225280 bytes
> >>
> >>   Device Boot      Start         End      Blocks   Id  System
> >> /dev/sdb1   *           1        1216     9767488+  83  Linux
> >> /dev/sdb2            1217        9483    66404677+  83  Linux
> >> /dev/sdb3            9484        9733     2008125   82  Linux swap / 
> >Solaris
> >>
> >> Another thing, is not written in /boot/grub/grub.cfg not to alter stuff ?
> >>
> >> #
> >> # DO NOT EDIT THIS FILE
> >> #
> >> # It is automaticaly generated by /usr/sbin/update-grub using
> >> templates from /etc/grub.d
> >> # and settings from /etc/default/grub
> >> #
> >>
> >> Please lemme know what is to be done & will try accordingly.
> >>
> >
> >I recommend that you remove these lines:
> >
> >font (hd1,1)/usr/share/grub/unifont.pff
> >set gfxmode=640x480
> >insmod gfxterm
> >insmod vbe
> >terminal gfxterm
> >
> >You will enter text mode, but this is not an issue since you're not using
> >any non ascii characters.
> >
> >--
> >Bean
> 
> Hi Mr. Bean,
> I tried your way but ran into another problem straightaway. When I
> tried to save the resulting file it gives me this error :-
> 
> Could not save the file /boot/grub/grub.cfg.
> 
> You are trying to save the file on a read-only disk. Please check that
> you typed the location correctly and try again.
> 
> Lemme say at the outset, this was with sudo
> 
> sudo gedit /boot/grub/grub.cfg
> 
> To check if its something to do with my hdd partitioning or something
> I tried to make a file a .txt file in / using sudo & that was
> successful.
> 
> The only conclusion I can come to  is there seems to be some kind of
> write-protection put in place (like in floppy disks) or something
> which needs to be unprotected otherwise the change cannot happen. Of
> course I do have the option of doing the same from windows but unsure
> if the text encoding might change or something. Preferably within
> linux.
> 
> Another dirty solution which somebody recommended was :-
> 
> 1) open and edit the Grub menu list with "sudo gedit /boot/grub/menu.list",
> 2) comment out four lines pertaining to Grub2,
> 3) copy the ten lines referring to 2.6.22-6 kernel and paste this just
> below the Grub2 lines,
> 4) you will now have two entries that will boot that kernel so you
> must edit the lines you just pasted and change the 2.6.22-6 to read
> 2.6.22-7,
> 5) save the file and reboot.
> 
> As always all comments, suggestions,  flames welcome :)
> 

Have you checked the file permisson ? Try this:

sudo chmod 666 /boot/grub/grub.cfg

This will mark the file as read-write by all user.

If the device is read-only, try to remount it as read-write.

-- 
Bean