Grub Loader 1.5 Read Error solved

[dimetri]

i had installed XP on SATA and Mint on IDE HDD. everything worked fine i was able to boot either into windows or into linux. Just performed linux updates today morning and was able to browse internet as well.. but after restart the system is not booting up. i just get

Grub loader 1.5 Read Error


if i change the boot order to defaults in BIOS i am only able to boot into XP.
What is the issue and how to resolve it??

[Nicki]

I think you can find the solution here: http://www.linuxmint.com/wiki/index.php ... annot_boot

[dimetri]

Thanks for the link Nicki.

2 questions . How do i get the UUID of my PC?? and i didnt exactly understand the concept of this. can some explain me.

[Nicki]

Open the terminal and type: sudo blkid
You will be prompt to type your password and then you have your list of UUID. Post this back together with your /boot/grub/menu.lst (take a copy of the content) and we will find out how to fix this.
All this is a bug that change the order of IDE and SATA when they are used together and there is a way to solve it.

[dimetri]

ok this the list that i get when i typed the command

/dev/sda1: UUID="58AC8117AC80F134" TYPE="ntfs" LABEL="WinXP160"
/dev/sdb1: UUID="8484B72384B716A0" TYPE="ntfs" LABEL="WinXP80" (Same hdd where i have linux installed)
/dev/sdb5: UUID="609bf13e-737e-4fa1-bea0-1b1a82bd94c2" TYPE="ext3"
/dev/sdb6: TYPE="swap" UUID="5db84846-7a92-42b1-8891-cd014613c957"
/dev/sda5: UUID="2E1085151084E565" LABEL="My Folders" TYPE="ntfs"
/dev/sda6: UUID="C02C91972C9188D4" LABEL="Songs" TYPE="ntfs"
/dev/sda7: UUID="AA609BF3609BC50B" LABEL="Movies" TYPE="ntfs"

and this is the copy of the menu.lst file.

title Linux Mint 7 Gloria, kernel 2.6.28-11-generic
root (hd1,4)
kernel /boot/vmlinuz-2.6.28-11-generic root=/dev/sdb5 ro quiet splash
initrd /boot/initrd.img-2.6.28-11-generic
quiet

title Linux Mint 7 Gloria, kernel 2.6.28-11-generic (recovery mode)
root (hd1,4)
kernel /boot/vmlinuz-2.6.28-11-generic root=/dev/sdb5 ro single
initrd /boot/initrd.img-2.6.28-11-generic

title Linux Mint 7 Gloria, memtest86+
root (hd1,4)
kernel /boot/memtest86+.bin
quiet

### END DEBIAN AUTOMAGIC KERNELS LIST

# This is a divider, added to separate the menu items below from the Debian
# ones.
title Other operating systems:
root


# This entry automatically added by the Debian installer for a non-linux OS
# on /dev/sda1
title Microsoft Windows XP Professional
rootnoverify (hd0,0)
savedefault
makeactive
chainloader +1


# This entry automatically added by the Debian installer for a non-linux OS
# on /dev/sdb1
#title Microsoft Windows XP Professional
#rootnoverify (hd1,0)
#savedefault
#makeactive
#map (hd0) (hd1)
#map (hd1) (hd0)
#chainloader +1

do let me the changes that have to be made

[Nicki]

I can't see that they match each other, something is missing. You have to make a new install.

[Husse]

No new install should be needed - please don't give false advice
From the menu.lst you can see that Mint is installed on /dev/sdb5 (root=/dev/sdb5)
The blkid command gave this result (among others)
/dev/sdb5: UUID="609bf13e-737e-4fa1-bea0-1b1a82bd94c2" TYPE="ext3"
So you change root=/dev/sdb5 to
root=UUID=609bf13e-737e-4fa1-bea0-1b1a82bd94c2
Important - note that the quotation marks ( " ) are excluded
This edit should be done as root and if it is done from the live CD make sure it is the system on the hard disk you edit
Save, reboot and you should be fine

[dimetri]

Thanks Husse,

I have done the changes. Will have to wait and chk if the issue persists again. but would like to know in detail about this prob. what happens when u dont give the UUID and what happens when you give it. also want to know if i have the enter that UUID for recovery mode as well.

right now the menu.lst looks like this.

title Linux Mint 7 Gloria, kernel 2.6.28-11-generic
root (hd1,4)
kernel /boot/vmlinuz-2.6.28-11-generic root=UUID=609bf13e-737e-4fa1-bea0-1b1a82bd94c2 ro quiet splash
initrd /boot/initrd.img-2.6.28-11-generic
quiet

title Linux Mint 7 Gloria, kernel 2.6.28-11-generic (recovery mode)
root (hd1,4)
kernel /boot/vmlinuz-2.6.28-11-generic root=/dev/sdb5 ro single
initrd /boot/initrd.img-2.6.28-11-generic

is this correct or any other changes is required.

[dimetri]

well after updating the menu.lst file everything seems to be screwed up. am just getting the Intel logo and nothing after that.not even the Grub Loader is showing. what do i do now

[Husse]

Seems right
Yes do it for Recovery mode as well
As stated in the wiki this is needed sometimes because the /dev/sdax number changes if you (dis)connect a USB disk and in some cases with a mix of SATA and IDE so UUID or a label is needed
UUID has some serious drawbacks too - the slightest change to the structure of your partitions and UUID changes (This does of course not include (dis)connecting a disk)

[dimetri]

ok will give it a try. also i found a weird issue. i downloaded the ISO file and tried burning it. was getting some error for size and nero asked me to correct it or ignore it. gave ignore and burnt the image. but after burning tried booting from cd it says
boot:
and nothing else it doesnt go to the live desktop nor does it start the installation.

do i need to select the correct the file and then burn??

[Husse]

I'm not following you
Is this the ISO that you installed from or another one?
Check the md5sum and do not let some program "adjust" it - that's a certain road to failure

[dimetri]

well no i used a diff cd to install it on my pc. i think the file that i downloaded must be corrupted. will try downloading again.

as for the grub issue i edited the menu.lst once again. have made the changes for the recovery mode as well. will chk it for some time and see if it works fine.

but am still not able to understand the problem with UUID.

[dimetri]

well the issue has been resolved... now its working perfectly fine after adding UUID to recovery mode as well..Once in a while get some error but after restart everything works just fine

Thanks for the help Husse.