On 13/11/11 17:12, Bruce Dubbs wrote:
> Andrew Benton wrote:
>> On Sun, 13 Nov 2011 10:36:34 +0000
>> spiky<[email protected]> wrote:
>>
>>> Ok I used grub prompt it showed the usb drive
>>> hd0,msdos1(LFS-7.0),2(swap),3(home).
>>> then entered set root=(hd0,msdos)
> That seems right. The msdos part is the boot record type, not a
> partition type,
>
>
>>> linux /boot/vmlinux-3.1-7.0 (it found with tab)root=/devsda1
> Is there a missing / or just a typo? Should be /dev/sda1
>
>>> boot
>>> i get
>>> "no filesystem could mount root tried ext 3 ,2, 4 etc
>>> also Kernel panic not syncing VFS unable to mount root fs on unknown
>>> block (8.1).
> When you have a problem with a lot of new things, isolate the new from
> the old. I recommend going back to a ext3 partition until you get it
> working.
>
>>> This is the same as I get when I let it boot as normal for this drive.
>> That looks like a kernel panic, which is good because it means you've
>> got past the BIOS and grub.
> Right.
>
>> It
>> could also be that the kernel config is fine but you've passed it the
>> wrong root= option on the grub command line.
> That would be my thought too.
>
> I'm pretty sure I'd get a
>> similar looking kernel panic if I tried to boot my kernel with root=
>> pointing to my swap partition. Another possibility is that the kernel
>> sees the partition as /dev/sdb1 or /dev/hdc1 or some such. There's no
>> way to be sure other than to try all the combinations you can think of
>> and see what works. If none of them work then the problem is probably
>> with your kernel config so you'll have to work on that recompile your
>> kernel until you get one that boots.
> BTW, the kernel doesn't understand root=UUID=uuid. You have to have a
> initrd for that. I'm not sure if the kernel understands
> root=LABEL=label or not.
>
> Just remember that grub's root and the kernel's root are not, in
> general, the same thing, although they could point to the same place.
>
> -- Bruce
If I was to go back to ext3 would that mean a complete rebuild or is it
possible to use gparted?
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