Hello All, We are using Barebox v2022.12.0 on a MSC SM2S-IMX8MP SoM. We witness an error happening when registering the first logical partition of our extended partition : ERROR: New partition mmc2.4 (0x46600400-0xc68003ff) on mmc2 overlaps with partition mmc2.3 (0x46600200-0x466005ff), not creating it ERROR: mmc2: Failed to register partition 4 on mmc2 (-22) However, Linux does not complain and all partitions are properly registered : [root@imx8-evo:~]# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS mmcblk2 179:0 0 14.6G 0 disk |-mmcblk2p1 179:1 0 66M 0 part |-mmcblk2p2 179:2 0 1G 0 part / |-mmcblk2p3 179:3 0 34M 0 part /rwdisk/systemrw |-mmcblk2p4 179:4 0 1K 0 part |-mmcblk2p5 179:5 0 2G 0 part /rwdisk/app |-mmcblk2p6 179:6 0 130M 0 part /var/log `-mmcblk2p7 179:7 0 32M 0 part /rwdisk/conf mmcblk2boot0 179:32 0 4M 1 disk mmcblk2boot1 179:64 0 4M 1 disk Since 84ea37e4580cabc2a49edc4e2c62b45a752771fc, extended partitions are registered with a size of 2 sectors. Our extended partition still manages to overlap with the first logical partition that it contains. A simple trick is to reduce the registration size to 1 sector, however we are not sure of the side effects of such change. Any idea why such issue could happen ? Thanks in advance for your help, Victor Bertin Witekio GmbH is registered in Frankfurt. Registered office: Am Wartfeld 7 - 61169 Friedberg. Registered company number: HRB 95432. VAT number DE287400071 This message contains confidential information and is intended only for the individual(s) addressed in the message. If you aren't the named addressee, you should not disseminate, distribute, or copy this e-mail. We continuously commit to comply with the applicable data protection laws and ensure fair and transparent processing of your personal data. Please read our privacy statement including an information notice and data protection policy for detailed information on our website.