[linux-lvm] Problems: reiserfs lvm as /
Tom Dawes-Gamble
tmdg at uksr.hp.com
Mon May 21 11:16:32 UTC 2001
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Hi,
These messages are similar to the ones I saw building my
/ on LVM system yesterday. I am using ext2 file systems though.
The default kernel parameter is ramdisk size 4096. I read the messages
to mean the ramdisk is not large enough.
I fixed it by adding a ramdisk option to the root on lvm entry in lilo.conf
so it looked like this:-
image=/boot/vmlinuz-2.4.2-2-lvm.1
label=linux-lvm
initrd=/boot/initrd_from_lvmcreate_initrd
read-only
root=/dev/vg00/root
ramdisk=5120
Could have up the kernel parameter instead I guess.
I have not done testing yet and will give a better account of my
problems and solutions later.
Since lvm was the only module in the ramdisk it may be that a default
ramdisk is not enough. Perhaps we should add a note to the HOW-TO
for days like this.
JFTR. I'm using RH 7.1 and beta7 LVM.
Tom.
Peter Kirk wrote:
>
> Hi,
>
> I am new to LVM, and I ran into some problems.
> First thing I did, was to setup LVM within the SuSE7.1 setup tools, which
> worked out fine.
> /boot is not on LVM, ext2fs
> swap is not on LVM
> LVM:
> / [reiserfs]
> /usr [reiserfs]
> /home [reiserfs]
>
> I have too disks, so I set the strip option to two, to get better
> performance. Now I want to compile a new kernel (2.4.4), and I cannot get lvm
> working with it. Since root is on LVM I need to do this lvmcreate_initrd
> stuff, but it does not work ! I get:
>
> VFS: Mounted root (ext2 file system).
> attempt to access beyond end of device
> 01:00: rw=0, want=4612, limit=4096
> attempt to access beyond end of device
> 01:00: rw=0, want=4613, limit=4096
> attempt to access beyond end of device
> 01:00: rw=0, want=4614, limit=4096
> attempt to access beyond end of device
> 01:00: rw=0, want=4615, limit=4096
> VFS: Cannot open root device "3a02" or 3a:02
> Please append the correct "root=" boot option
> kernel panic: VFS: Unable to mount root fs on 3a:02
>
> in lilo.conf it says:
> boot=/dev/raid/root
> This should be the correct root. It works with the old 2.4.0 Kernel made from
> SuSE, propably something is with the initrd or with the Kernel-Setup
>
> Please help !!
> Thanks
> _______________________________________________
> linux-lvm mailing list
> linux-lvm at sistina.com
> http://lists.sistina.com/mailman/listinfo/linux-lvm
- --
char *t,*n,*i="%.9s%.7s%.7s\n";extern void exit(int);extern int printf(const
char *,...);int main(){int v=*i,g,e=*(i-~(v/=v))%*(i+v);g=*i+~e--;
t=n=" DISPLAY'tmdg at uksr';,,;'.hp.com'*>"+g;v=g-e; e-=printf(i,n- v,e+n,t);
t=n=" DISPLAY'http://www.itrc.hp.com/' *>"-~g;exit(g+~printf(i,n+~v,e+n,t));}
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