[Cbe-oss-dev] PS3 Linux boot loader discussions

[Hiroyuki Machida]

YAEGASHI-san and Geert-san,

I think the label "/" does not work for such case. Suppose that
partitions on internal
HDD and/or other removable media woud have same label.
Even if we introduce new keyword so that kboot replaces it as coressponding
device name, it would not work. Beacuse, the 1st kernel (kboot) and 2nd
kernel (real kernel user uses) are different and device numbers/names also
may be different.

As Geert mentions, The solution is using UUID in the label and repalce
it in initrd
which is located in removable media.


Cheers,
Hioryuki,



2007/1/18, Geert Uytterhoeven <Geert.Uytterhoeven at sonycom.com>:
> On Thu, 18 Jan 2007, YAEGASHI Takeshi wrote:
> > Hiroyuki Machida wrote:
> > > I'd like to focus on minimum requirements to support bootable removable media.
> > > I summarised as follows. Is there any objections?
> >
> > How about telling the booting kernel which device or filesystem
> > it comes from (with boot parameters?)?  It would be useful
> > especially when many memory cards or USB storage devices with
> > kboot.conf are plugged.
> >
> > I have no concrete idea about the spec.  Probably it cannot use
> > Linux's device node names or major/minor numbers for that
> > purpose since they would vary between kernels and versions.  Any
> > other useful methods?
>
> You can use file system labels (assumed not everyone calls their `/' or `BOOT')
> or UUIDs?
>
> FYI, right now kboot mounts the file system with label `/'.
>
> Gr{oetje,eeting}s,
>
>                                                 Geert
>
> --
> Geert Uytterhoeven -- Sony Network and Software Technology Center Europe (NSCE)
> Geert.Uytterhoeven at sonycom.com ------- The Corporate Village, Da Vincilaan 7-D1
> Voice +32-2-7008453 Fax +32-2-7008622 ---------------- B-1935 Zaventem, Belgium
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