On Sun, Feb 15, 2026 at 06:40:47PM +0530, Padmarao Begari wrote: > Add a 'part dupcheck' subcommand (gated by CONFIG_PARTITION_UUIDS) > that scans all block devices for duplicate partition UUIDs. This > helps detect situations where the same disk image has been flashed > to multiple boot devices (e.g., USB stick and UFS), which can lead > to unpredictable boot behavior when using PARTUUID-based root > filesystem specifications. It iterates all block devices using > blk_foreach_probe() and checks partition UUIDs via part_get_info(). > > When duplicates are found, a warning is printed for each occurrence: > > Warning: duplicate PARTUUID 20c5fba5-0171-457f-b9cd-f5129cd07228 > first seen on usb_mass_storage.lun0:3 > also on ufs_scsi.id0lun0:3 > > Signed-off-by: John Toomey <[email protected]> > Signed-off-by: Padmarao Begari <[email protected]> > --- > cmd/part.c | 104 ++++++++++++++++++++++++++++++++++++++++++++++++++++- > 1 file changed, 103 insertions(+), 1 deletion(-)
I see this as useful, but I think it needs to be its own Kconfig symbol. This is going to be enabled on something like 1100 boards today, if only gating on CONFIG_PARTITION_UUIDS. Thanks. -- Tom
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