Panic (both kernel and me!)

Hendrik Wiese 7.e.Q at syncro-community.de
Thu Feb 10 21:10:38 PST 2005


I don't know if it is a problem yet but I have had the same issues while 
starting my kernel from a ReiserFS partition.

Try outsourcing /boot to a seperate ext2 partition of about 20Megabytes! 
That should do the trick.


gdaprela at email.it wrote:

>I hope this is a simple issue, but I can't find the solution.
>
>After having finished building a LFS 6.0 from a Mandrake 10.0
>I rebooted into my new system, and...this is the result:
>
>VFS: cannot open root device "hdb3" or unknown-block (3,71)
>please append a correct "root=" boot option
>Kernel panic: Unable to mount root fs on unknown-block (3,71)
>
>I know this issue has been discussed in the faq section, and
>so, after a look at this section, I've controlled in my kernel
>configuration if Hard disk and Reiserfs (my filesystem) are
>enabled and compiled not as modules. This is the result:
>
>File system -> Reiserfs support OK
>Device drivers-> Block devices ->  I don't find where to set hd
>
>Device drivers-> ATA/ATAPI/MFM/RLL support->Enhanced IDE/MFM/RLL
>disk/cdrom/tape/floppy support
>Maybe this is the right option to enable the hard drive?
>
>Device drivers-> ATA/ATAPI/MFM/RLL support->Include IDE/ATA2 disk support
>Or is this one? I've checked both
>
>I hope until here all is right. Looking to my fstab I have:
>
>/dev/hdb3        /                reiserfs    defaults         1   1
>proc             /proc            proc        defaults         0   0
>sysfs            /sys             sysf        defaults         0   0
>
>and this is the line in the file menu.lst from grub:
>
>title lfs 6.0
>kernel (hd1,2)/boot/vmlinuz-2.6.8.1-lfs root=/dev/hdb3 devfs=mount vga=792
>
>Have I forgotten something?
>Could someone help me please?
>
>Thanks
>Giulio 
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