Hammer bootloader

Daniel Phillips phillips at phunq.net
Thu Aug 28 20:10:38 PDT 2008

Hi Matt,

On Monday 25 August 2008 17:39, Matthew Dillon wrote:
>     The main issue is making room for boot0/boot1/boot2.  32 bit disklabels
>     overload the disklabel and boot storage with 'sector 0', so partitions
>     starting at 'sector 0' have an overlap issue.
>     UFS takes care of this by not writing anything into the first 8K of
>     its partition.
>     HAMMER doesn't do this.  HAMMER writes to the first 8K of its 
>     partition.

Is there any reason not to avoid writing in the first 8K?  Ext2 on
Linux for example leaves the first 4K free, and I intend to do the
same, just to leave space for a boot block in case somebody needs it.



More information about the Kernel mailing list