Unable to repartition non-mounted SD card












4















I have a 64GB SD card which I'm trying to use for a Raspberry Pi. I've had some issues with it so I want to wipe it and start over. In order to do that I want to create a single FAT32-formatted partition on sdb.



sudo fdisk /dev/sdb appears to work fine up until the final w at which point it informs me:




The partition table has been altered.



Calling ioctl() to re-read the partition table.



Re-reading the partition table failed.: Device or resource busy



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).




I also tried sufo cfdisk /dev/sdb, which appeared to work - but when I used gparted the GUI says that the File System is "unknown". If I attempt to use gparted to format it to FAT32, I get an error message:




Libparted Error



Partition(s) 1, 2 on /dev/sdb have been written, but we have been unable to inform the kernel of the change, probably because it/they are in use. As a result, the old partition(s) will remain in use. You should reboot now before making further changes




Clicking ignore on that message aborts the operation.



The output of umount /dev/sdb is umount: /dev/sdb: not mounted



I'm at a loss. What can I do to to format and repartition this SD?






partitioning mount sd-card







share|improve this question


















  • 1





    Use sudo partprobe /dev/sdb to "inform the OS of partition table changes". For reference: manpages.ubuntu.com/manpages/bionic/man8/partprobe.8.html

    – mikewhatever
    11 hours ago











  • Are you a wizard???? Please move this to an answer and I'll mark it as accepted. I ran that and suddenly gparted works

    – snazzybouche
    11 hours ago


















4















I have a 64GB SD card which I'm trying to use for a Raspberry Pi. I've had some issues with it so I want to wipe it and start over. In order to do that I want to create a single FAT32-formatted partition on sdb.



sudo fdisk /dev/sdb appears to work fine up until the final w at which point it informs me:




The partition table has been altered.



Calling ioctl() to re-read the partition table.



Re-reading the partition table failed.: Device or resource busy



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).




I also tried sufo cfdisk /dev/sdb, which appeared to work - but when I used gparted the GUI says that the File System is "unknown". If I attempt to use gparted to format it to FAT32, I get an error message:




Libparted Error



Partition(s) 1, 2 on /dev/sdb have been written, but we have been unable to inform the kernel of the change, probably because it/they are in use. As a result, the old partition(s) will remain in use. You should reboot now before making further changes




Clicking ignore on that message aborts the operation.



The output of umount /dev/sdb is umount: /dev/sdb: not mounted



I'm at a loss. What can I do to to format and repartition this SD?






partitioning mount sd-card







share|improve this question


















  • 1





    Use sudo partprobe /dev/sdb to "inform the OS of partition table changes". For reference: manpages.ubuntu.com/manpages/bionic/man8/partprobe.8.html

    – mikewhatever
    11 hours ago











  • Are you a wizard???? Please move this to an answer and I'll mark it as accepted. I ran that and suddenly gparted works

    – snazzybouche
    11 hours ago
















4












4








4








I have a 64GB SD card which I'm trying to use for a Raspberry Pi. I've had some issues with it so I want to wipe it and start over. In order to do that I want to create a single FAT32-formatted partition on sdb.



sudo fdisk /dev/sdb appears to work fine up until the final w at which point it informs me:




The partition table has been altered.



Calling ioctl() to re-read the partition table.



Re-reading the partition table failed.: Device or resource busy



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).




I also tried sufo cfdisk /dev/sdb, which appeared to work - but when I used gparted the GUI says that the File System is "unknown". If I attempt to use gparted to format it to FAT32, I get an error message:




Libparted Error



Partition(s) 1, 2 on /dev/sdb have been written, but we have been unable to inform the kernel of the change, probably because it/they are in use. As a result, the old partition(s) will remain in use. You should reboot now before making further changes




Clicking ignore on that message aborts the operation.



The output of umount /dev/sdb is umount: /dev/sdb: not mounted



I'm at a loss. What can I do to to format and repartition this SD?






partitioning mount sd-card







share|improve this question














I have a 64GB SD card which I'm trying to use for a Raspberry Pi. I've had some issues with it so I want to wipe it and start over. In order to do that I want to create a single FAT32-formatted partition on sdb.



sudo fdisk /dev/sdb appears to work fine up until the final w at which point it informs me:




The partition table has been altered.



Calling ioctl() to re-read the partition table.



Re-reading the partition table failed.: Device or resource busy



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).




I also tried sufo cfdisk /dev/sdb, which appeared to work - but when I used gparted the GUI says that the File System is "unknown". If I attempt to use gparted to format it to FAT32, I get an error message:




Libparted Error



Partition(s) 1, 2 on /dev/sdb have been written, but we have been unable to inform the kernel of the change, probably because it/they are in use. As a result, the old partition(s) will remain in use. You should reboot now before making further changes




Clicking ignore on that message aborts the operation.



The output of umount /dev/sdb is umount: /dev/sdb: not mounted



I'm at a loss. What can I do to to format and repartition this SD?






partitioning mount sd-card




partitioning mount sd-card






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked 11 hours ago









snazzybouchesnazzybouche

15815




15815








  • 1





    Use sudo partprobe /dev/sdb to "inform the OS of partition table changes". For reference: manpages.ubuntu.com/manpages/bionic/man8/partprobe.8.html

    – mikewhatever
    11 hours ago











  • Are you a wizard???? Please move this to an answer and I'll mark it as accepted. I ran that and suddenly gparted works

    – snazzybouche
    11 hours ago
















  • 1





    Use sudo partprobe /dev/sdb to "inform the OS of partition table changes". For reference: manpages.ubuntu.com/manpages/bionic/man8/partprobe.8.html

    – mikewhatever
    11 hours ago











  • Are you a wizard???? Please move this to an answer and I'll mark it as accepted. I ran that and suddenly gparted works

    – snazzybouche
    11 hours ago










1




1





Use sudo partprobe /dev/sdb to "inform the OS of partition table changes". For reference: manpages.ubuntu.com/manpages/bionic/man8/partprobe.8.html

– mikewhatever
11 hours ago





Use sudo partprobe /dev/sdb to "inform the OS of partition table changes". For reference: manpages.ubuntu.com/manpages/bionic/man8/partprobe.8.html

– mikewhatever
11 hours ago













Are you a wizard???? Please move this to an answer and I'll mark it as accepted. I ran that and suddenly gparted works

– snazzybouche
11 hours ago







Are you a wizard???? Please move this to an answer and I'll mark it as accepted. I ran that and suddenly gparted works

– snazzybouche
11 hours ago












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Use sudo partprobe /dev/sdb to "inform the OS of partition table changes".



For more info, check man partprobe or http://manpages.ubuntu.com/manpages/bionic/man8/partprobe.8.html.






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    Use sudo partprobe /dev/sdb to "inform the OS of partition table changes".



    For more info, check man partprobe or http://manpages.ubuntu.com/manpages/bionic/man8/partprobe.8.html.






    share|improve this answer




























      7














      Use sudo partprobe /dev/sdb to "inform the OS of partition table changes".



      For more info, check man partprobe or http://manpages.ubuntu.com/manpages/bionic/man8/partprobe.8.html.






      share|improve this answer


























        7












        7








        7







        Use sudo partprobe /dev/sdb to "inform the OS of partition table changes".



        For more info, check man partprobe or http://manpages.ubuntu.com/manpages/bionic/man8/partprobe.8.html.






        share|improve this answer













        Use sudo partprobe /dev/sdb to "inform the OS of partition table changes".



        For more info, check man partprobe or http://manpages.ubuntu.com/manpages/bionic/man8/partprobe.8.html.







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered 11 hours ago









        mikewhatevermikewhatever

        24k76986




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