There is a Permissions problem, when I try to access /boot/grub/grub.conf and /etc/fstab so I can edit them. How can I do that, using the Live CD's I have? I need root access. On 11/8/08, Lanny Marcus <lmmailinglists at gmail.com> wrote: > Background: This is a dual boot (Windows XP and CentOS 5.2 (32 bit) > box. There were four (4) NTFS partitions. The C partition got full. I > deleted the 4 NTFS partitions and did a clean install of Windows XP, > into one (1) NTFS partition. > I knew that I would need to install GRUB again and I did that, using > the CentOS 5 Installation DVD. When I tried to boot into Linux, no > joy. this is the GRUB error I got: > > Booting 'CentOS (2.6.18-92.1.17.el5)' > root (hd0,2) > Filesystem type unknown, partition type 0x8e > Kernel /vmlinuz-2.6.18-92.1.17.el5 ro root=/dev/VolGroup00/LogVol00 rhgb > quiet > > Error 17: Cannot mount selected partition > Press any key to continue > > (same error, trying to boot the 2 older Linux Kernels) > > The CentOS 5 Installation DVD apparently is now damaged (Murphy's > Law). I have available to me: > (a) CentOS 5.2 i386 Live CD (I am running on that, as I write this email) > (b) Knoppix Live Disk, V.5.1.1 > (c) SystemRescueCD V.0.2.15 > > The partitions on my hard drive, as shown by QTParted on the Knoppix > Live CD are now: > > 01 /dev/hda1 ntfs Active > 02 /dev/hda2 ext3 (/boot) > 03 /dev/hda3 unknown (CentOS LVM) > > > My belief is that /hda3 is not mounted. If I click on the "Local Hard > Drives" Icon under "disc" it only shows hda2 (the Linux /boot > partition). How and where do I fix that? > > > When I view /etc/fstab as centos user with the CentOS 5.2 Live CD, I > see that the line I had to mount the NTFS data partition (E: when I > had 4 NTFS partitions) showed it as /dev/hda6 > Now, the only NTFS partition, C, is /dev/hda1. Viewing it as > centos user, in gedit, it is read only. When I try to view it as root, > it shows me a /etc/fstab file that apparently is created by > the LiveCD and doesn't show the Windows partition. How do I edit the > /etc/fstab file so I can change it from /hda6 to /hda1? Here's the > file contents: > > /dev/VolGroup00/LogVol00 / ext3 defaults 1 1 > LABEL=/boot /boot ext3 defaults 1 2 > devpts /dev/pts devpts gid=5,mode=620 0 0 > tmpfs /dev/shm tmpfs defaults 0 0 > proc /proc proc defaults 0 0 > sysfs /sys sysfs defaults 0 0 > /dev/VolGroup00/LogVol01 swap swap defaults 0 0 > /dev/hda6 /mnt/win ntfs-3g rw,umask=0000,defaults 0 0 > > TIA! Lanny >