On 13/11/11 11:50, Andrew Benton wrote:
> On Sun, 13 Nov 2011 10:36:34 +0000
> spiky<martynvid...@aol.com> 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)
>> linux /boot/vmlinux-3.1-7.0 (it found with tab)root=/devsda1
>> 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).
>> 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. It could be that you've not compiled the
> kernel with support for the root filesystem built into the kernel. It
> could also be that the kernel config is fine but you've passed it the
> wrong root= option on the grub command line. 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.
>
> Andy
Even tho the system will boot when an ide, I did recompile kernel
yesterday checking sata stuff and usb. It just seems confusing as I know
it will boot until connected as usb. I will try kernel again checking
for root file system support.
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