Friends,
As of now two partitions are mounted
[root@RedHat ~]# df -h | grep sdc
/dev/sdc1 1008M 1.3M 956M 1% /thisisnewpart
/dev/sdc6 8.9G 21M 8.4G 1% /root/thisisnewpart3
So if try to delete without unmounting then it will give error
Step 1 : unmount
[root@RedHat ~]# umount /dev/sdc1
[root@RedHat ~]# umount /dev/sdc6
[root@RedHat ~]# fdisk /dev/sdc
Welcome to fdisk (util-linux 2.32.1).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): d
Partition number (1-7, default 7): 7
Partition 7 has been deleted.
Command (m for help): d
Partition number (1-6, default 6): 8
Value out of range.
Partition number (1-6, default 6):
Partition 6 has been deleted.
Step 2 : Save Configuration
After deleting all save file with "w"
Command (m for help): w
The partition table has been altered.
The kernel still uses the old table. The new table will be used at the next reboot or after you run partprobe(8) or kpartx(8).
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