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Old 11-19-2004, 12:57 AM   #1
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Registered: Nov 2004
Location: India
Distribution: FC1
Posts: 9

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Smile compiling 2.6

i just compiled the linux kernel-2.6 today moning. i had a linu-2.4 kernel. the compilation had been successful and all the modules have been installed. Also updated the grub.coinf file with the new kernel img and the initrd img.

My .config file was perfect, done by some guidelines provided in this site by chiriac. Now a problem when booting,

it says unable to mount root or unknown blk number (0,0)
give correct root= option
kernel panic : VFS unable to mount root device

a short snippet of my grub.conf is as follows,

title kernel 2.6
root(hd0,6) /* my boot partition*/
kernel /vmlinuz-2.6.myver ro root=LABEL=/ rhgb
initrd /initrd-2.6.myver.img

title kernel 2.4
kernel /vmlinuz-2.4 ro root=LABEL=/ rhgb
initrd /initrd-2.4.img

My 2.4 kernel boots fine whereas i don't know what is wrong woth the root device when booting 2.6 .

my root resides on /dev/hda8

i have done the all required changes in the rc.sysinit file for mounting the /sys.

Can anyone plz suggest some solution to this
thankiing u,
Old 11-19-2004, 01:05 AM   #2
Registered: Jan 2003
Distribution: Slackware
Posts: 82

Rep: Reputation: 15
I don't think /* ... */ is a comment in grub. Try #comment, possibly on another line.

(FYI: Mounting / comes before mounting /sys, so that's a red herring. )
Old 11-19-2004, 01:06 AM   #3
Senior Member
Registered: Sep 2004
Location: Savannah, GA
Distribution: Ubuntu, Gentoo, Mythbuntu, ClarkConnect
Posts: 1,154

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are you sure you can have the comment
/* my boot partition*/

--a quick scroll through their manual ( didn't mention block comments in that fashion...

--not a grub user, can't say for sure...
Old 11-19-2004, 01:06 AM   #4
Registered: Mar 2004
Location: Pocatello, Idaho, USA
Distribution: Ubuntu
Posts: 256

Rep: Reputation: 30
You might wanna try Ubuntu Linux. I'm downloading it now to try. I read a a review on it from OSnews and it sounds like a fairly easy distro. Better yet if you don't mind waiting awhile and you don't want to download it they'll send it to you for free.

Linux and BSD are like Ice Cream. You just have to find the flavor you like most.

Last edited by Zuggy; 11-19-2004 at 01:08 AM.
Old 11-19-2004, 01:09 AM   #5
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Registered: Sep 2004
Location: Savannah, GA
Distribution: Ubuntu, Gentoo, Mythbuntu, ClarkConnect
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...random... but thanx for your opinion
Old 11-27-2004, 05:24 AM   #6
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Registered: Nov 2004
Location: India
Distribution: FC1
Posts: 9

Original Poster
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plz ignore the comments format i just put it, i was remembering my grub.conf file and i happen to put the usual /* for commenting, but ca anyone suggest as to why i get the proiblem that root=/ is not valid and lands me up in a panic whereas with the same line in the 2.4 kernel part boots it propoerly, could there be any configuration problem in my kernel , plz suggest

Thanking u
Old 11-27-2004, 08:07 AM   #7
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Registered: Jul 2004
Location: Netherlands
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what file-system do you use on the "/" -part, and is it compiled into the kernel ?
( i always compile it in to avoid prob's )

Old 11-27-2004, 11:36 AM   #8
Registered: Oct 2003
Location: Iowa
Distribution: LFS 5.0, building 6.3, win98se, multiboot
Posts: 288

Rep: Reputation: 30
On the kernel line, try root=hda8 instead of root=LABEL=/
the LABEL syntax has been known to be buggy. The other thing to watch out for is to make sure that fs support for the root fs is compiled into the kernel as egag suggests.

Last edited by kevinalm; 11-27-2004 at 11:39 AM.


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