Unmount mmcblk0. Topics in this forum are automatically closed 6 months after creation. 1 GiB, 31268536320 bytes, 61071360 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: gpt Disk Aug 30, 2016 · I would like to chroot to another rootfs and unmount the former one so, after mounting a SD card containing a rootfs (on /mnt/disk/) and killing almost every process, I tried to run: umount /tmp m Mar 26, 2014 · Is there the /dev/mmcblk0 device after you boot from flash? What does fdisk -l /dev/mmcblk0 say? 2) There is no file system on /dev/mmcblk0p1, you need to create a file system first (mkfs ). This will run fsck -fy on the volume and fix any errors present. Oct 27, 2023 · SD card not able to safely unmount. sudo umount /dev/mmcblk0p1 # Replace /dev/mmcblk0p1 with your MMC partition Jan 6, 2015 · So how is the sd card in /dev/mmcblk0 being updated with my changes if it's not mounted? And assuming there is somebody doing the updates (as there must be) then how do I prevent those updates to the sd card while dd is backing it up? Jan 17, 2024 · Unmount the drive and look at that directory's contents. My card is 8GB (class 6). ext2: Bad magic number in super-block while trying to open /dev/mmcblk0 The superblock could not be read or does not describe a valid ext2/ext3/ext4 filesystem. If the device is valid and it really Jun 13, 2017 · The command line should be OK, provided that /dev/mmcblk0 is the the correct target device and that it is a good card. g. The problem is that everytime I try to mount the directory, i get te following message: usage mount -r -w -o options -t. 2el xdcp td3e tno ilyamwv ybn lm 3gy pf bowj