F9 doesn't find swap or /root system on new motherboard

M. Fioretti mfioretti at nexaima.net
Sat Jan 17 22:58:51 UTC 2009


On Sat, January 17, 2009 11:35 pm, M. Fioretti wrote:
> Greetings,
>
> My motherboard, on which I was running F9 x86_64 off one SATA drive, died.
> I bought a new motherboard with a new cpu of the same type (AMD) and
> connected the hard disk with F9 to it. Now Grub does start with these
> options:
>
> kernel/vmlinuz/-2.6.27-etc ro root=/dev/sda3 rhgb mem=2048M enforcing 0
>
> but the process stops at a certain point


after posting, I discovered the Grub geometry command. If I type in the
grub CLI "geometry (hd" and then TAB, I get:

Possible partitions are:

Partition num: 0, Filesystem type is ext2fs, partition type 0x83

ditto for "Partition num" 2,4,5

Partition num 1 is listed as "Filesystem type unknown, partition type 0x82"

Now there are three things here I don't understand:

first, all my partitions where ext3, not 2. Can this be due to the fact
that the motherboard died without fixing the journaling table, or whatever
it is?

also, the second partition is just my swap, see also the type. Why,
however, isn't the filesystem recognized? Should I reformat it? How, if I
can't run a live cd or usb pen in this computer?

Last, why are the partitions labeled as hdN, when they where sdaN?

So, can I make Linux start in any way from that drive, in order to fix the
system with proper tools, change grub.conf, etc..?

Thanks,
Marco


>, saying:
>
> Trying to resume from /dev/sda2
> Unable to access resume device (/dev/sda2)
> Creating root device
> Mounting root filesystem
> Mount: error mounting /dev/root on /sysroot as ext3: no such file or
> directory
>
>
> IIRC I had these partitions:
>
> /boot /dev/sda1
> swap /dev/sda2
> /    /dev/sda3
> /home /sda5
>
>
> So (also from some research I made before posting) this means that on the
> new board the kernel cannot find the swap anymore, but why? I mean, if it
> boots, as it does, it means that it has found the device corresponding to
> the hard drive, isn't it?
>
> How do I help grub to find the swap partition on the hd? (I need to go via
> grub cause I cannot run a live CD here, there's no CD/DVD reader available
> and no possibility to burn a live linux on usb keys :-( )
>
> By the way, the motherboard is an ASUS M3N78-EM with the drive connected
> to the SATA1 connector. No other hard or optical drives are present.
> Connecting the hd to SATA2 or 3 doesn't change anything, moving on sata5
> or 6 doesn't boot at all.
>
> TIA,
> M.
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