On 08/21/2012 10:58 PM, Stephen Warren wrote: > On 08/08/2012 12:30 PM, Rob Herring wrote: > ... >> Making u-boot more intelligent discovering things also helps here. For >> example, >> booting from the disk partition with the bootable flag set. I've submitted >> patches for this a while back. > > That sounds like these: > > http://www.mail-archive.com/[email protected]/msg79100.html > > Is it likely these will make it into U-Boot? Nobody seems to have > replied to your patches.
Not likely, they've bit-rotted and there's at least one issue I've fixed. I need to repost the series, but the overwhelming response on the first posting doesn't motivate me. > I just recently proposed a "partuuid" command to extract a partition's > UUID, but I've since re-written it to be a "part" command with a "uuid" > sub-command. Adding a "get-bootable" sub-command to retrieve the flag > your patch sets would be a good idea. Should I pull your patches into my > series to do this? > > Your series only implements bootable flag retrieval for MSDOS/MBR > partitions. I wonder what flag one should key off for EFI/GPT partition > tables? Looking at parted/gparted, the following options exist: > > A parted flag called "boot", which sets the partition's type UUID. This > appears to have been supported since before parted was in git (i.e. 2006 > some time). > > A parted flag called "legacy_boot", which actually sets a single bit in > the partition attributes. This feature is available in parted v2.4 and > later, which isn't even in Ubuntu Quantal yet, although it was released > a while ago. This seems to be the more correct option, although not very > available to users. > > Perhaps either case should trigger U-Boot to consider the partition > bootable? I only briefly looked at EFI partitioning. My conclusion was some EFI variable gets set to point to the boot loader, but if there's bootable flags that's better for u-boot. I haven't worried about it because I can't even get debian installer to use EFI partitions. It's partitioning config basically says if the arch is arm, use DOS partitions. Rob _______________________________________________ cross-distro mailing list [email protected] http://lists.linaro.org/mailman/listinfo/cross-distro
