Hi, Richard Owlett wrote: > The error message block is titled > > It is not possible to create more than 1 primary partition
There should still 2 MBR partition table slots free. Both could become primary partitions, although a provident partition editor could force you to use the last partition as extended partition where more logical partitions can be created. > Gparted reports existing partition information to be: > > Partition | File system | Label | Size | Used > /dev/sdc1 | unknown |Debian 11.2.0 amd64 | 4.00 KiB | --- > unallocated | unallocated | | 1.98 MiB | --- > /dev/sdc2 | fat16 | | 2.53 MiB | 2.52 MiB > unallocated | unallocated | | 29.81 GiB | --- That's quite some misperception. /sbin/fdisk -l debian-11.0.0-amd64-netinst.iso says Device Boot Start End Sectors Size Id Type debian-11.0.0-amd64-netinst.iso1 * 0 772095 772096 377M 0 Empty debian-11.0.0-amd64-netinst.iso2 4060 9243 5184 2.5M ef EFI (FAT-12/ I guess that gparted's confusion is because of the nested partitions. Another cause could be the GPT and APM debris. (It is the main job of make_isombr_part to remove this.) In order to check the theory about nested partitions you could delete partition 2 which you don't need for BIOS booting. E.g. by this interactive run: $ sudo fdisk /dev/sdb ... welcome messages , maybe use p to get the table shown ... Command (m for help): d Partition number (1,2, default 2): 2 Partition 2 has been deleted. Command (m for help): w The partition table has been altered. Syncing disks. Maybe gparted likes it better afterwards. > > http://scdbackup.webframe.org/make_isombr_part.c > After successful compilation I don't recall having actually attempted to use > it. But https://lists.debian.org/debian-user/2017/03/msg01225.html looks like you ran it and then inspected the resulting partition table: >...> Device Boot Start End Sectors Size Id Type >...> /dev/sdb1 * 0 1140735 1140736 557M 0 Empty >...> /dev/sdb2 4156 5531 1376 688K ef EFI (FAT-12/16/32) >...> /dev/sdb3 1140736 15130623 13989888 6.7G 83 Linux Have a nice day :) Thomas
