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Old 03-06-2005, 09:24 PM   #1
QiangWan
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Registered: Mar 2005
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Booting problem of FC2


Hi, all:

I had two hard disks in my PC, one for windows xp, and the other for Fedora Core 2, and I successfully installed FC2 several months ago. But now when I boot linux system, it always failed in here:

Read-Only file system while try to open /dev/hdb2 [FAILED].

and then, system require me to Repair file system:

(Repair file system) 1#

For me, I just don't know enter what orders to repair it. I also tried to use the first disk of FC2 to rescue linux, and it mount system to mut/sysimage,
but I still don't know how to rescue.

I really want to fix this problem, as reinstall linux system is really a huge job for me.
 
Old 03-06-2005, 09:57 PM   #2
fancypiper
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Registered: Feb 2003
Location: Sparta, NC USA
Distribution: Ubuntu 10.04
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fsck

What filesystem does /dev/hdb2 have on it?

If it is a variant of ext2, try

e2fsck /dev/hdb2

# Red Hat & Fedora links
FedoraNEWS.ORG
The Fedora HOWTO explains the different software managers.
Maximum RPM
rpmfind
Easier software management: apt4rpm
Fedora Core 1 Tips and Tricks
Fedora Core 2 Tips and Tricks
Fedora Core 3 Tips and Tricks
apt, yum, and up2date repository settings (configuration files) for Fedora Core 3
# Handling NTFS
New Technology FileSystem (NTFS) HOWTOs
Linux NTFS project

Last edited by fancypiper; 03-06-2005 at 09:59 PM.
 
Old 03-06-2005, 10:47 PM   #3
QiangWan
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Registered: Mar 2005
Posts: 7

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Thank you for instant reply! When booting, my Linux just stuck in place where an error occurred during the file system check.

To check file system /dev/hdb2, I use #df to check my file sysytem:
Filesystem ...
/dev/hdd2 /
/dev/hdd1 /boot
non /dev/shm

There is no information about /dev/hdb2, I wonder if it is a disk in windows.

I tried e2fsck /dev/hdb2, but the system hinted that :

"Read-Only file system while trying to open /dev/hdb2
Disk write-protected; use the -n option to do a read-only check of the device. "

Then, I tried fsck-n, and the system replied:

"fsck .ext3: No medium found while try to open /dev/hdb2".
The superblock could not be read or does not describe a correct ext2 file system. If the device is valid and it really contains ext2 file system (and not swap or ufs or something else), then the super block is corrupt, and you might try runing e2fsck with an alternate superblock e2fsck-b 8193 <device>"

So I tried e2fsck -b 8193 /dev/hdb2, but it still prompted "read-only file system" information.

What shall I do?
 
Old 03-06-2005, 11:19 PM   #4
fancypiper
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Registered: Feb 2003
Location: Sparta, NC USA
Distribution: Ubuntu 10.04
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What do these commands show?

fdisk -l
mount

You might want to examine your /etc/fstab file for correctness as well.
 
Old 03-07-2005, 02:10 AM   #5
QiangWan
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Registered: Mar 2005
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Thank you very much! Now I think I find the root of the problem.

I tried fdisk and mount to check the disk information: first disk(for windows) hda1, hda2... normally; second disk displayed hdd1, hdd2, hdd3(swap). Then I checked /etc/fstab as you indicate, I found linux use hdb3 for swap.

Then I use command "chmod 777 /etc/fstab", and it showed that "changing permissions of /etc/fstab: Read-only filesystem". I cannot use vi to change this read-only file.

There might be two ways to solve this problem, one change the identification of second disk from "hdd" to "hdb"; or change the /etc/fstab file which is read-only.
So again I need some more detail suggestions.
 
  


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