Hello all,
I have a 16GB SD card, but currently I can only make use of its 4GB:
root@beaglebone:/home/debian# df -h
Filesystem Size Used Avail Use
% Mounted on
udev 10M 0 10M 0
% /dev
tmpfs 100M 392K 99M
1% /run
/dev/disk/by-uuid/b7ff9570-02a9-4982-b353-1131012481cb 3.5G 3.5G 0 100
% /
tmpfs 248M 0 248M
0% /dev/shm
tmpfs 248M 0 248M 0
% /sys/fs/cgroup
tmpfs 100M 0 100M 0
% /run/user
tmpfs 5.0M 0 5.0M 0
% /run/lock
I would like to expand the root partition since I am getting no space left
on device error. I tried grow_partition.sh but it did not work. So I tried
to do it by fdisk many times, but it does not work as well, what could be
the problem?
root@beaglebone:/home/debian# fdisk /dev/mmcblk0
Command (m for help): p
Disk /dev/mmcblk0: 15.6 GB, 15648948224 bytes
4 heads, 16 sectors/track, 477568 cylinders, total 30564352 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
Disk identifier: 0xdcc515d1
Device Boot Start End Blocks Id System
/dev/mmcblk0p1 * 2048 3481599 1739776 6 FAT16
/dev/mmcblk0p2 3481600 30564351 13541376 83 Linux
Command (m for help): d
Partition number (1-4): 2
Command (m for help): p
Disk /dev/mmcblk0: 15.6 GB, 15648948224 bytes
4 heads, 16 sectors/track, 477568 cylinders, total 30564352 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
Disk identifier: 0xdcc515d1
Device Boot Start End Blocks Id System
/dev/mmcblk0p1 * 2048 3481599 1739776 6 FAT16
Command (m for help): n
Partition type:
p primary (1 primary, 0 extended, 3 free)
e extended
Select (default p): p
Using default response p
Partition number (1-4, default 2): 2
First sector (3481600-30564351, default 3481600):
Using default value 3481600
Last sector, +sectors or +size{K,M,G} (3481600-30564351, default 30564351):
Using default value 30564351
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
root@beaglebone:/home/debian# reboot
After reboot:
root@beaglebone:/home/debian# resize2fs /dev/mmcblk0p2
resize2fs 1.42.5 (29-Jul-2012)
resize2fs: Bad magic number in super-block while trying to open /dev/
mmcblk0p2
Couldn't find valid filesystem superblock.
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