Here on Super User there were other questions about SD cards suddenly going read-only. The write protection is intended to prevent this condition from actually causing data loss, This behavior is typical of flash drive controllers when they detect a problem with the underlying NAND (e.g. If the drive is read-only no matter what computer you plug it into, or you've tried the above steps to no avail, then the drive has probably experienced a fault condition, and it's generally not possible to remove write protection from a faulty flash drive. See What can I do if my USB flash drive is write-protected or read-only? Especially this answer where it states: Most likely this particular SD card is broken beyond repair. Responses from the OP are " gparted failed", "the SD card is not formatting for some reason", "the imager is not working" etc. How to unallocate a partition on a SD card? Simply format the SD card & re-flash/install OS on blank SD card. I wouldn't waste time/effort with partitions. In a comment you seem to imply you don't want the OS on the SD card in that case you can just format the whole SD card instead of deleting/extending/adjusting partitions.įreshly install Pi OS per a comment you made This is simple enough, not sure why its failing without more details. Best to do that with a bootable Linux environment (gparted, Ultimate Boot CD, Bart PE, etc.) Should you simply be curious on extending partitions know that you can't always do that easily in Windows when partitions have a drive letter (or are 'Online' aka mounted). So extending and/or using only one partition is NOT recommended. As it stands I don't see why you need to extend it. Linux/Raspbian likely needs two partitions to operate. Please re-word what you mean, because un-allocate could mean delete partition or make it not the primary?Įxtend a partition to get full space on one partition As it stands you seem to want multiple things that sometimes contradict themselves: If you still have outstanding concerns please clarify what those are by updating your question. It already takes up the rest of the SD card space so does not need to be expanded. Deleting this would delete the OS & your files. Linux uses ext file system that Windows cannot natively read/write to. Should not be deleted.īoot partition I don't believe has anything to do with the bootloader you flashed which I believe is related to the Pi 4's FW (FirmWare) EEPROM which controls the boot process/device (SD or USB) whereas earlier Pi models controlled that with a bootcode.bin file located in the boot filesystemĢnd large partition: doesn't specify file system type. I think you are confused, some info (including links at bottom) that I think may answer your questions:ġst FAT32 partition labeled boot: is the kernel/boot code for OS as first commenter details. The SDĬard is just the device that has been added. Run fdisk -l, and then re-run it with the SD card inserted. If you're unable to determine the proper device, remove the SD card, In both cases, once the drive isįormatted, you will lastly need to mount it. N to create a new partition table, and start laying everything out.Ĭfdisk is also another viable tool, which is basically fdisk with a Then adding a single new partition & format it. YouĬan then delete all existing partitions on the device by typing d, and In a terminal, start fdisk /dev/sdx where /dev/sdx is your SD cardĭevice (may depend on the Linux distro you're using, see below). Note that the above commands are not case sensitive I used caps to The SD card is just the disk that has been added. If you're unable to determine the proper disk, remove the SD card, runĭISKPART and LIST DISK, and then re-run it with the SD card inserted. To format, type FORMAT FS=FAT32 QUICK, and finally, to reassign a To create a primary partition to reuse the space on the card, typeĬREATE PARTITION PRIMARY. SURE YOU SELECTED THE PROPER DISK BEFORE RUNNING THE CLEAN COMMAND! You can then type CLEAN toĬlear the partition table on the card, effectively blanking it. Your disks by typing LIST DISK, then select the proper disk with Start a command prompt, and start the DISKPART console. You can use DISKPART in Windows, or the equivalent fdisk command under (Would have set a Migrate flag, but it's missing from the menu) Copied from the Rasperry Pi Stack Exchange:
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