启用以使用 beaglebone black 扩展我的 sd 卡上的文件系统分区

Question

I am working with an Beaglebone black and I am following this tutorial ( https://elinux.org/Beagleboard:Expanding_File_System_Partition_On_A_microSD ) to expand my file system but I can't see my sd card when i do df -h here is the log:

Filesystem      Size  Used Avail Use% Mounted on
udev            199M     0  199M   0% /dev
tmpfs            62M  2.8M   59M   5% /run
/dev/mmcblk1p1   15G  8.1G  5.6G  60% /
tmpfs           307M  8.0K  307M   1% /dev/shm
tmpfs           5.0M  4.0K  5.0M   1% /run/lock
tmpfs           307M     0  307M   0% /sys/fs/cgroup
tmpfs            62M     0   62M   0% /run/user/1000

The last step cause my troule when I try fsck /dev/mmcblk0p1 I get:

fsck from util-linux 2.33.1
e2fsck 1.44.5 (15-Dec-2018)
ext2fs_open2: Bad magic number in super-block
fsck.ext2: Superblock invalid, trying backup blocks...
fsck.ext2: Bad magic number in super-block while trying to open /dev/mmcblk0p1

The superblock could not be read or does not describe a valid ext2/ext3/ext4  
filesystem.  If the device is valid and it really contains an ext2/ext3/ext4  
filesystem (and not swap or ufs or something else), then the superblock       
is corrupt, and you might try running e2fsck with an alternate superblock:    
    e2fsck -b 8193 <device>
 or
    e2fsck -b 32768 <device>

I got blocked so any advice will be welcome

Answer 1

The problem here is that your BBB has not booted from the SD card, so it's probably not prepared correctly. The number behind the "mmcblk" device hints at which one you're looking at: /dev/mmcblk0 is the SD card, /dev/mmcblk1 is the eMMC. It has booted from the internal eMMC. The SD card you've inserted has some garbage on it, because fsck cannot find a file system. How'd you create the SD card?