2008/6/30 Lucas Gadani <[EMAIL PROTECTED]>:
> Hello, > > This is my first patch for GRUB, and I haven't found any coding > styles/formatting, nor developer documentation, so, if there's > something wrong, please, forgive me and point me to the right > direction. > > Current implementation of the chainloading code does not work, cause > it reads the partition table from the first sector of the root device, > and the root device does not contain partition information. I've > changed the way partition table are loaded, keeping a copy of the > partition entry in grub_partition_t structs data field, and just > loading this information in the correct address when chainloading. > I've also changed the logical partitions start address to point to the > actual disk sector, instead of pointing to the sector relative to the > beginning of the extended partition, so we can now boot into logical > partitions (for example, syslinux doesn't boot if the partition table > doesn't map to the correct disk sector). > > Any comments are appreciated. > > -- > Lucas > Thank you so much for this. I've been having problem for weeks trying to boot some syslinux-bootable partitions on a usb stick. I knew of the problem but lacked the necessary knowledge to contribute myself. I've just begun to try the patched grub, but until now performs as expected. Something that might be related: I've created a stick with a GPT label, and I get partitions to boot using syslinux, or rather, they all boot until the fourth. The fifth and the following ones don't, even when I clone the contents of another partition which does boot. I suspect a similar problem to the one you've addressed. Thanks again for the effort.
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