Bug#61065: Need /dev/md0 for boot/install RAID support in root.bin
Mike Bilow <mikebw@colossus.bilow.com> writes:
> Basically, it is possible to boot on the Rescue/Root floppies (with a
> non-standard kernel),
Note that the standard, "vanilla" kernel has changed in the following way:
kernel-image-2.2.14-i386 (2.2.14-2) frozen unstable; urgency=low
.
* Enabled ServerRAID (closes: #52597).
* Enabled DAC960 (closes: #49863).
* Enabled CONFIG_FILTER (closes: #50996).
* Enabled quota support (closes: #60206).
Is this enough? I guess not... it doesn't have md support?
> drop to fdisk manually to set partition types to
> 0xFD (RAID autodetect),
Can't cfdisk set this partition type? If not, please file a bug
against cfdisk.
> run mkraid (from a mounted floppy) to unite the partitions,
mkraid isn't part of root.bin, is it? I think we have room on i386 at
least to add it, btw.
> and proceed with a more or less standard install -- except
> that the root filesystem in the RAM disk is mounted read-only and has no
> node /dev/md0.
>
> It can be fixed ("mount -o remount,rw /dev/root / ; mknod b 9 90"), but I
> think it would be a good idea and very minimal effort to make the node
> present by default so that it would be accessible when the kernel started
> the RAID automatically.
I can certainly add this device to the list of devices created. Could
you clarify:
- are you sure it's just /dev/md0 that we need?
- this is not present but should be added to root.bin?
- is it present in the base file system?
> In general, support for installing to bootable software RAID should
> probably be added to boot-floppies at some point for the 2.4 kernel.
There are limitations on what we can add to the kernel. But I think
this is in the cards for woody.
--
.....Adam Di Carlo....adam@onShore.com.....<URL:http://www.onShore.com/>
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