diff options
| author | Simon Glass <sjg@chromium.org> | 2025-03-15 14:25:58 +0000 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2025-04-03 11:41:55 -0600 |
| commit | 6acb0d28b06c408740e8b80e4015e1e656c7faf4 (patch) | |
| tree | b929806e470571ea6b75394d0938751e70d3a221 /doc/develop | |
| parent | 8d6097d30041e8b0f0238a30e877967895f738f3 (diff) | |
boot: Consider non-bootable partitions
Any 'bootable' flag in a DOS partition causes boostd to only scan
bootable partitions for that media. This can mean that extlinux.conf
files on the root disk are missed.
Put this logic behind a flag and update the documentation.
For now, the flag is enabled, to preserve the existing behaviour of
bootstd which is to ignore non-bootable partitions so long as there is
at least one bootable partition on the disk. Future work may provide a
command (or some other mechanism) to control this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'doc/develop')
| -rw-r--r-- | doc/develop/bootstd/overview.rst | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/doc/develop/bootstd/overview.rst b/doc/develop/bootstd/overview.rst index e3ce97cc4f5..9fe5630ab16 100644 --- a/doc/develop/bootstd/overview.rst +++ b/doc/develop/bootstd/overview.rst @@ -235,8 +235,9 @@ means that `default_get_bootflow()` is used. This simply obtains the block device and calls a bootdev helper function to do the rest. The implementation of `bootdev_find_in_blk()` checks the partition table, and attempts to read a file from a filesystem on the partition number given by the -`@iter->part` parameter. If there are any bootable partitions in the table, -then only bootable partitions are considered. +`@iter->part` parameter. If there are any bootable partitions in the table and +the BOOTFLOWIF_ONLY_BOOTABLE flag is set in `@iter->flags`, then only bootable +partitions are considered. Each bootdev has a priority, which indicates the order in which it is used, if `boot_targets` is not used. Faster bootdevs are used first, since they are |