I think I found a bug in v3.4 of GNU Parted. This was my issue, put in removable media that had old Root and Home labelled partitions but they were mounted at /media/USER/xxxx. I wanted to format and i got an error about overlapping partitions.
I used sfdisk to check my sectors start and end. I outputted the partition table data to a text file and edited the overlap as I did find one on /dev/sdb. I used sfdisk -d /dev/sdb > ~/Desktop/sdb-backup.txt After editing this text file to fix the overlap as my sdb1 end overlapped my sdb2 start, i re fed the new partition data back in with sfdisk /dev/sdb < ~/Desktop/sdb-backup.txt After being confident i fixed the overlap that was causing Parteds GUI to not open and the partitions were resized after feeding new adjusted data sectors to the disks with sfdisk, I got this print out when using a command: parted /dev/sdb unit s print to confirm the changes took place. My terminal spit this out *Backtrace has 14 calls on stack: 14: /lib/x86_64-linux-gnu/libparted.so.2(ped_assert+0x4f) [0x7f15143c3c8f] 13: /lib/x86_64-linux-gnu/libparted.so.2(+0x2654c) [0x7f15143db54c] 12: /lib/x86_64-linux-gnu/libparted.so.2(+0x136ba) [0x7f15143c86ba] 11: /lib/x86_64-linux-gnu/libparted.so.2(ped_disk_add_partition+0x1f0) [0x7f15143c8f90] 10: /lib/x86_64-linux-gnu/libparted.so.2(+0x26f29) [0x7f15143dbf29] 9: /lib/x86_64-linux-gnu/libparted.so.2(+0x270dd) [0x7f15143dc0dd] 8: /lib/x86_64-linux-gnu/libparted.so.2(+0x26f54) [0x7f15143dbf54] 7: /lib/x86_64-linux-gnu/libparted.so.2(+0x271cd) [0x7f15143dc1cd] 6: /lib/x86_64-linux-gnu/libparted.so.2(ped_disk_new+0x48) [0x7f15143c8a18] 5: parted(+0x8a1d) [0x55ae5016da1d] 4: parted(non_interactive_mode+0xb8) [0x55ae50173378] 3: parted(main+0x116d) [0x55ae5016bbdd] 2: /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xcd) [0x7f151418b7ed] 1: parted(_start+0x2a) [0x55ae5016bd6a]You found a bug in GNU Parted! Here's what you have to do:Don't panic! The bug has most likely not affected any of your data.Help us to fix this bug by doing the following:Check whether the bug has already been fixed by checkingthe last version of GNU Parted that you can find at: http://ftp.gnu.org/gnu/parted/ <http://ftp.gnu.org/gnu/parted/>Please check this version prior to bug reporting.If this has not been fixed yet or if you don't know how to check,please visit the GNU Parted website: http://www.gnu.org/software/parted <http://www.gnu.org/software/parted>for further information.Your report should contain the version of this release (3.4)along with the error message below, the output of parted DEVICE unit co print unit s printand the following history of commands you entered.Also include any additional information about your setup youconsider important.Assertion (metadata_length > 0) at ../../../libparted/labels/dos.c:2359 in function add_logical_part_metadata() failed.zsh: IOT instruction sudo parted /dev/sdb print unit s print unit chs print* Please advise on how I fix this bug or review v3.4 files and patch the bug for future versions. Let me know if i was first to report this error in v3.4, not for reward but for personal pride and an ability to show off an email. Thanks Brandon Thomas