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[rhelv5-list] Re: rhel5 dual boot installation- no grub at boot time.



ok,
I followed the dirty method (as I unplugged other disks for proper
installation of rhel5) now, unplugged my other disks and
re-installation worked.
Unplugged other hard disks and re-installed whole OS. No answer yet
why rhel5 installation's grub reached to other disk earlier which I
deselected while partitioning.

New grub.conf is
#boot=/dev/mapper/pdc_cfabdbchhe
default=0
timeout=5
splashimage=(hd0,2)/grub/splash.xpm.gz
hiddenmenu
password --md5 $1$4.OrhaiC$SeGJ4DlzmC31y5zbd9Sb5.
title Red Hat Enterprise Linux Server (2.6.18-8.el5)
	root (hd0,2)
	kernel /vmlinuz-2.6.18-8.el5 ro root=LABEL=/ rhgb quiet
	initrd /initrd-2.6.18-8.el5.img
title Other
	rootnoverify (hd0,0)
	chainloader +1


and /boot/grub/device.map is

# this device map was generated by anaconda
(hd0)     /dev/mapper/pdc_cfabdbchhe


Regards
Anuj Singh.

On Dec 30, 2007 8:13 AM, अनुज <anujhere gmail com> wrote:
> Hi,
> I had dual boot with rhel4 and windowsxp. I installed rhel5 by using
> edit of older partitions. Installation had no error. After reboot I
> have no grub.
>
>
> I tried rescue and then re-install grub but getting error.
>
> sh-3.1# uname -a
> Linux localhost.localdomain 2.6.18-8.el5 #1 SMP Fri Jan 26 14:15:21
> EST 2007 i686 athlon i386 GNU/Linux
>
>
> sh-3.1# grub-install /dev/sda
> /dev/sda does not have any corresponding BIOS drive.
>
> partition table as follows.
> sh-3.1# fdisk -l /dev/sda
>
> Disk /dev/sda: 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/sda1 * 1 4462 35840983+ 7 HPFS/NTFS
> /dev/sda2 4463 4475 104422+ 83 Linux
> /dev/sda3 4476 5750 10241437+ 83 Linux
> /dev/sda4 5751 9733 31993447+ 5 Extended
> /dev/sda5 5751 6387 5116671 83 Linux
> /dev/sda6 6388 6642 2048256 82 Linux swap / Solaris
> /dev/sda7 6643 6897 2048256 83 Linux
> /dev/sda8 6898 7152 2048256 83 Linux
> /dev/sda9 7153 7241 714861 83 Linux
>
>
> I used grub-shell then which is giving me error of no such partition:
>
> grub> root (hd0,1)
> Filesystem type is ext2fs, partition type 0x83
>
> grub> setup (hd0,0)
> Checking if "/boot/grub/stage1" exists... no
> Checking if "/grub/stage1" exists... yes
> Checking if "/grub/stage2" exists... yes
> Checking if "/grub/e2fs_stage1_5" exists... yes
> Running "embed /grub/e2fs_stage1_5 (hd0,0)"... failed (this is not fatal)
> Running "embed /grub/e2fs_stage1_5 (hd0,1)"... failed (this is not fatal)
> Running "install /grub/stage1 (hd0,0) /grub/stage2 p /grub/grub.conf "... fail
> ed
>
> Error 22: No such partition
>
> did ls and found vmlinuz,initrd and other /boot/ files at the right place.
>
> My grub.conf is
>
>
> i have this information
>
>
> sh-3.1# cat boot/grub/grub.conf
> # grub.conf generated by anaconda
> #
> # Note that you do not have to rerun grub after making changes to this file
> # NOTICE: You have a /boot partition. This means that
> # all kernel and initrd paths are relative to /boot/, eg.
> # root (hd2,1)
> # kernel /vmlinuz-version ro root=/dev/mapper/pdc_cfabdbchhep8
> # initrd /initrd-version.img
> #boot=/dev/sdb
> default=0
> timeout=5
> splashimage=(hd2,1)/grub/splash.xpm.gz
> hiddenmenu
> password --md5 $1$EfjvUqFA$KRwo.7YS0pE0tkQqqJbnv/
> title Red Hat Enterprise Linux Server (2.6.18-8.el5)
> root (hd2,1)
> kernel /vmlinuz-2.6.18-8.el5 ro root=LABEL=/1 rhgb quiet
> initrd /initrd-2.6.18-8.el5.img
> title Other
> rootnoverify (hd2,0)
> chainloader +1
>
>
> which says grub installed on my second hard disk. Whereas I deselected
> my two other hard disks during partitioning (I always follow this rule
> as I have important data on other hard disks.).
>
>
> sh-3.1# grub-install --recheck /dev/sda
> grub-install does not support reprobing of device.map when
> using a device-mapper based boot device.
>
>
> sh-3.1# grub-install /dev/sda
> /dev/sda does not have any corresponding BIOS drive.
>
>
> fdisk -l has.
>
>
> Disk /dev/sda: 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/sda1 * 1 4462 35840983+ 7 HPFS/NTFS
> /dev/sda2 4463 4475 104422+ 83 Linux
> /dev/sda3 4476 5750 10241437+ 83 Linux
> /dev/sda4 5751 9733 31993447+ 5 Extended
> /dev/sda5 5751 6387 5116671 83 Linux
> /dev/sda6 6388 6642 2048256 82 Linux swap / Solaris
> /dev/sda7 6643 6897 2048256 83 Linux
> /dev/sda8 6898 7152 2048256 83 Linux
> /dev/sda9 7153 7241 714861 83 Linux
>
>
> Disk /dev/sdb: 80.0 GB, 80026361856 bytes
> 255 heads, 63 sectors/track, 9729 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
> Device Boot Start End Blocks Id System
> /dev/sdb1 * 1 1278 10265503+ c W95 FAT32 (LBA)
> /dev/sdb2 1279 3834 20531070 c W95 FAT32 (LBA)
> /dev/sdb3 3835 6390 20531070 c W95 FAT32 (LBA)
> /dev/sdb4 6391 9729 26820517+ c W95 FAT32 (LBA)
>
> Disk /dev/sdc: 150.0 GB, 150039945216 bytes
> 255 heads, 63 sectors/track, 18241 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
> Device Boot Start End Blocks Id System
> /dev/sdc1 * 1 18240 146512768+ 7 HPFS/NTFS
>
>
> sh-3.1# cat boot/grub/device.map
> # this device map was generated by anaconda
> (hd2) /dev/mapper/pdc_cfabdbchhe
> (hd0) /dev/sdb
>
>
> Now why it happened :
> 1. Even after I deselected other hard disks during
> installation/partitioning, grub installation reached other disk?
> 2.Why am I getting error when I am trying to install grub on my first
> hard disk ? /dev/sda ?
>
> Thanks and regards
> Anuj Singh.
>


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