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Old 09-24-2006, 02:44 AM   #1
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Registered: May 2006
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Kernel Panic:VFS:can not mount root fs

I don't what is this problem,,,I wil try to clear you the problem..

See My HDD wil mount properly as ST380011A
But some times it wil mount as @RT380011A or QT380011..which can
create a problem..

Now i didn't recognise how my HDD is mounted..It was mounted as
@RT380011A...And it created a problem...The entire problem is it can
not execute the excutable files...i reboot my machine..i checked the
BIOS properly..Now it is mounted as ST380011A..My bootloader is

The error what i am getting in the bootsequence is
sh-2021:reiserfs_read_super:can not find reiserfs on ide0(3,7)
kernel panic:VFS:Unable to mount root fs on 03:07

My linux partition is /dev/hda8..i am using slackware...

Suggest me please..I am getting this problem from many time..I hv
re-installed many times..Suggest me how i can fix it....

And one more..I booted my machine using knoppix..I checked the linux
partition using errors were reported..then i mounted this
filesystem..i tried to change the root using chroot..It didn't
worked..the error was
can not execute /bin/sh file...(even though the file is present)
Old 09-25-2006, 11:43 AM   #2
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Registered: Oct 2003
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I'm not sure I follow your problem, but I'll try and do my best. Try booting with knoppix and check your slackware /etc/lilo.conf file. Make sure the root partition is set for hda8.
Your error message indicates that lilo is looking for a root partition on hda7("can not find reiserfs on ide0(3,7)").
Edit lilo.conf if necessary so root=/dev/hda8. Then run the following in a console:

$ su
# umount /dev/hda8
# mount -t reiserfs /dev/hda8 /media/hda8
# chroot /media/hda8
# lilo -v

The chroot command should work in knoppix if you umount and remount like the above. Reason - knoppix mounts all partitions "nodev" for safety reasons which prevents chroot from running properly. Unmounting and remounting like the above gets around this.
Old 09-26-2006, 04:15 AM   #3
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Registered: May 2006
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ya..i don't think i have cleared my problem..
See now the problem has changed into different condition..I checked my linux partiton using reiserfsck in knoppix...All the the data that was present in my / (mount point) has now moved on lost+found directory...Infact the size of lost+found directory is more than 3GB..How can i recover all the usefull data and libraries from this directory...The sub-directories in the lost+found directory contains symbols,which contain the useful data...Now i guess i have cleared the problem
Old 10-12-2006, 04:40 PM   #4
Registered: Feb 2005
Location: Somerset, England
Distribution: Gentoo
Posts: 106
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I had the same problem and it was because I had not compiled in support for my IDE chipset during make menuconfig.

Check the settings under ATA/ATAPI/MFM/RLL Support for your particular chipset.

Without IDE support the kernel cannot run the harddisk.


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