Re: GRUB device names wrt. ieee1275

[phcoder <phcoder@gmail.com>]

For me it looks like it's disk driver-specific (ofdisk) and not 
platform-specific. Perhaps quoting or escaping could offer a better 
solution?
David Miller wrote:
> One issue I need to resolve before I can send finalized
> patches out for sparc is about device naming.
> 
> Currently the PowerPC ieee1275 support allows using both device
> aliases and full openfirmware device path names with the usual GRUB
> partition specification concatenated at the end.  For the most part
> this is fine.
> 
> This works for a large group of cases, but in general it will not
> work.
> 
> The problem is two fold:
> 
> 1) "," characters can appear anywhere in an openfirmware path
>    name.  For example my workstations disk is:
> 
> 	/pci@1e,600000/pci@0/pci@9/pci@0/scsi@1/disk@0
> 
>    There are no quick workarounds for this.  For example, even if we
>    can change the partition fetching code in GRUB to use "strrchr()"
>    instead of "strchr()" in kern/disk.c:grub_disk_open() it will
>    still think the above path has partition ",600000" or something
>    silly like that.
> 
> 2) Disks can have multiple comma seperated components especially
>    on SCSI in OF path names.  For example a disk on target 2,
>    lun 3, would have final path component "disk@2,3"
> 
>    And currently that ",3" would look like a parition specification
>    to GRUB.
> 
> Therefore, I would suggest that we adopt the openfirmware partition
> specification of ":" on GRUB for ieee1275 platforms.
> 
> Then we just have a machine specific path seperator, defined in
> some <grub/machine/foo.h> header file and the kernel/disk.c code
> and elsewhere use the macro instead of ","
> 
> Any objections?
> 
> 
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-- 

Regards
Vladimir 'phcoder' Serbinenko