SD Clean/Linux: Difference between revisions
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{{warning|The commands in this guide are case-sensitive. Enter them exactly as written, or there may be unintended consequences.}} | {{warning|The commands in this guide are case-sensitive. Enter them exactly as written, or there may be unintended consequences.}} | ||
# Make sure your SD card is '''not''' inserted | # Make sure your SD card is '''not''' inserted | ||
# Open a terminal window and type <code>watch lsblk</code> | # Open a terminal window and type <code>watch lsblk</code> | ||
# Insert the SD card and watch for a new device appearing in lsblk | # Insert the SD card and watch for a new device appearing in lsblk | ||
# | # Observe the output for the new device. It should match something like this: {{#tag:syntaxhighlight| | ||
NAME MAJ:MIN RM | NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT | ||
mmcblk0 179:0 0 | mmcblk0 179:0 0 29.7G 0 disk | ||
└─mmcblk0p1 179:1 0 | └─mmcblk0p1 179:1 0 29.5G 0 part /run/media/user/FFFF-FFFF | ||
|lang=text}} | |lang=text}} | ||
# Take note of the name of the device that now appears. In our example above, it was <code> | # Take note of the name of the device that now appears. In our example above, it was <code>mmcblk0</code>, but it could show up as <code>sda</code> or <code>sdb</code>, if you use a USB adapter | ||
#* If <code>RO</code> is set to 1, make sure the lock switch is not slid down | #* If <code>RO</code> is set to 1, make sure the lock switch is not slid down | ||
# Hit CTRL + C to exit the menu | # Hit CTRL + C to exit the menu | ||
# | # Type <code>sudo umount /dev/<device name>*</code> (do not replace the <code>*</code>) | ||
# Type <code>sudo fdisk /dev/<device name></code>. | # Type <code>sudo fdisk /dev/<device name></code>. | ||
# Enter <code>o</code>, then enter <code>n</code> and go through all the resulting prompts without changing settings. | # Enter <code>o</code>, then enter <code>n</code> and go through all the resulting prompts without changing settings. | ||
#* If it asks whether to remove a VFAT signature, choose to remove it. | #* If it asks whether to remove a VFAT signature, choose to remove it. | ||
# Once you are back at fdisk's main menu, enter <code>t</code> and then enter <code>0c</code> | # Once you are back at fdisk's main menu, enter <code>t</code> and then enter <code>0c</code> | ||
# Enter <code>a</code> and then <code>p</code> - observe the output, and make sure the device is now formatted correctly. | # Enter <code>a</code> and then <code>p</code> - observe the output, and make sure the device is now formatted correctly: : {{#tag:syntaxhighlight| | ||
Disk /dev/mmcblk0: 29.72 GiB, 31914983424 bytes, 62333952 sectors | |||
Units: sectors of 1 * 512 = 512 bytes | |||
Sector size (logical/physical): 512 bytes / 512 bytes | |||
I/O size (minimum/optimal): 512 bytes / 512 bytes | |||
Disklabel type: dos | |||
Disk identifier: 0x######## | |||
Device Boot Start End Sectors Size Id Type | |||
/dev/<partition name> 8192 62333951 62325760 29.7G c W95 FAT32 (LBA) | |||
|lang=text}} | |||
# If there are no issues, enter <code>w</code> - this will save changes and exit the fdisk prompt. | # If there are no issues, enter <code>w</code> - this will save changes and exit the fdisk prompt. | ||
# Type <code>sudo mkfs.vfat /dev/< | # Type <code>sudo mkfs.vfat /dev/<partition name> -s 64</code> to reformat the new partition. | ||
#* If the SD card is over 32GB in size, change </code>64</code> to <code>128</code> | #* If the SD card is over 32GB in size, change </code>64</code> to <code>128</code> | ||
# Type <code>sudo eject /dev/<device name></code>, then remove and reinsert the SD card. | # Type <code>sudo eject /dev/<device name></code>, then remove and reinsert the SD card. | ||
# Copy your data back onto the SD card. | # Copy your data back onto the SD card. | ||
[[Category:General guides]] | |||