[syslinux] LVM support
H. Peter Anvin
hpa at zytor.com
Tue Apr 14 12:10:23 PDT 2009
H. Peter Anvin wrote:
> Ferenc Wagner wrote:
>>
>> Maybe a stupid question: if the boot LV is a single linear map,
>> wouldn't booting from that be very easy? At the end of the day that
>> isn't different from it being a partition, after all. The installer
>> could recognize this and patch in the sector numbers all the same. If
>> the start of the filesystem was also patched in (I don't know this
>> offhand), then the filesystem code would have no problem reading the
>> rest.
>
> Very easy indeed.
>
Clarification on this: in Syslinux, ALL sector numbers are relative to
the beginning of the partition; the partition offset is passed in from
the MBR and is added at the last moment. For a linear map, it's just a
matter of passing in the proper filesystem offset.
-hpa
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