Wrong hardisk mapping.....

11-10-2007	#1 (permalink)
reiko Linux Newbie Join Date: Aug 2007 Location: Chennai, India Posts: 105	Wrong hardisk mapping..... I've installed arch linux, the flaw i'm encountering my hard disk is IDE type but it names it as "sda" instead of "hda". Is it a bug in arch linux or is it the how it maps hardisk.

11-10-2007	#2 (permalink)
ozar Super Moderator Join Date: May 2004 Posts: 12,058	No, that's normal in Arch starting with the release of the 2.6.20 kernel. __________________ oz New Members: * README *

11-11-2007

#3 (permalink)

reiko

Linux Newbie

Join Date: Aug 2007

Location: Chennai, India

Posts: 105

ozar now the problem i encounter is filesystem check failed. I'll get u all the possible information regarding it.

Code:

$df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda8              27G  565M   25G   3% /
none                  252M     0  252M   0% /dev/shm

Code:

$fdisk -l /dev/hda
Disk /dev/hda: 80.0 GB, 80060424192 bytes
255 heads, 63 sectors/track, 9733 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x340b340a

   Device Boot      Start         End      Blocks   Id  System
/dev/hda1               1        1275    10241406    7  HPFS/NTFS
/dev/hda2   *        1276        1300      200812+  83  Linux
/dev/hda3            1301        9733    67738072+   f  W95 Ext'd (LBA)
/dev/hda5            1301        2575    10241406    7  HPFS/NTFS
/dev/hda6            2576        3791     9767488+  83  Linux
/dev/hda7            3792        6223    19535008+  83  Linux
/dev/hda8            6224        9733    28194043+  83  Linux

Code:

$cat /etc/fstab

#
# /etc/fstab: static file system information
#
# <file system>        <dir>         <type>    <options>          <dump> <pass>
none                   /dev/pts      devpts    defaults            0      0
none                   /dev/shm      tmpfs     defaults            0      0


/dev/cdrom /mnt/cdrom   iso9660   ro,user,noauto,unhide   0      0
/dev/cdrom1 /mnt/cdrom1   iso9660   ro,user,noauto,unhide   0      0
/dev/dvd /mnt/dvd   udf   ro,user,noauto,unhide   0      0
/dev/fd0 /mnt/fd0   vfat   user,noauto   0      0
/dev/sda8 / ext3 defaults 0 1

Now the error which i'm during boot is,

Code:

Checking Filesystems

/dev/sda8:

The superblock could not be read or does not describe a correct ext2
filesystem. If the device is calid and it really contains an ext2
filesystem ( and not swap or ufs or something else ) then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock.
	e2fsck -b 8193 <device>

****************FileSystem Check Failed*****************

Please repair manually and reboot. Note that the root
filesystem is currently mounted read-only. to remount
it read-write type: mount -n -o remount,rw /
when you exit the maintenance shell the system will 
reboot automatically.

*************************************************************

then i altered the /etc/fstab,

Code:

$cat /etc/fstab

#
# /etc/fstab: static file system information
#
# <file system>        <dir>         <type>    <options>          <dump> <pass>
none                   /dev/pts      devpts    defaults            0      0
none                   /dev/shm      tmpfs     defaults            0      0


/dev/cdrom /mnt/cdrom   iso9660   ro,user,noauto,unhide   0      0
/dev/cdrom1 /mnt/cdrom1   iso9660   ro,user,noauto,unhide   0      0
/dev/dvd /mnt/dvd   udf   ro,user,noauto,unhide   0      0
/dev/fd0 /mnt/fd0   vfat   user,noauto   0      0
/dev/sda8 / ext3 defaults 0 0

I rebooted and then it gave me the login prompt without any error.
Now i want to know whether i have handled this problem in a good way or is my solution is not the better one.

11-12-2007	#4 (permalink)
reiko Linux Newbie Join Date: Aug 2007 Location: Chennai, India Posts: 105	Well OZAR u havent replied to my thread pls anybody help me out to fix this problem!!!!!!!!!

11-12-2007	#5 (permalink)
valan Linux Engineer Join Date: Nov 2004 Location: Ft. Polk, LA Posts: 794	The only change you made is not to check the filesystem on boot. Apparently this was causing the problem. It sounds like it works fine now that it gets past that check. You might want to run fsck yourself to check the fs, and see if it works for you manually instead of automatically.

11-12-2007

#6 (permalink)

ozar

Super Moderator

Join Date: May 2004

Posts: 12,058

Quote:

Now i want to know whether i have handled this problem in a good way or is my solution is not the better one.

I really don't know why you are getting the file system error.

My own fstab entry for the root partition looks like this:

Code:

/dev/sda6   /            ext3          defaults                0      1

...and I've never gotten that error.

Maybe someone else will chime in with some clue as to where the error is coming from. In the interim, I'll post back if it should come to me.

__________________
oz

New Members: * README *

11-12-2007	#7 (permalink)
infoshirish Linux User Join Date: May 2007 Location: Pune, India Posts: 397	Hello rieko, Well you wont get that error but i guess it exists. As when you edit fstab for zero then fsck won't check the filesystem. If its one then by default it always checks for filesystem though. Ozar is not getting any errors as might be his filesystem is working perfectly fine. According to me you need to check for bad blocks. But it will eat your huge time. Also you can try tihs:- Code: Code: 1. Boot to single user mode (maintenance mode) and give root pasword. 2. Manually run fsck -y. 3. Remount the file system as read/write (mount -n -o remount,rw /). 4. Reboot the system to run level 2. Also one strange thing i saw in your case for the outputs of df -h and fdisk /dev/hda Is it possible that it shows sda for df- h and hda for fdisk? Anyways do update us. __________________ Regards, who \|grep -i blonde \| date; cd~; unzip; touch; strip; finger; mount; gasp; yes; uptime; umount; sleep Newbie clicks http://www.linuxforums.org/forum/lin...ead-first.html

Are you a Linux Guru who is willing to share your in-depth Linux knowledge? Try our new Article submission system.