UBUNTU 12.04，普通用户新建目录、文件均提示No space left on device,该怎么处理
UBUNTU 12.04，普通用户新建目录、文件均提示No space left on device
fdisk -l结果：
Disk /dev/sda: 69000.8 GB, 69000797093888 bytes
90 heads, 3 sectors/track, 499137710 cylinders, total 134767181824 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0xc1df067f
Device Boot Start End Blocks Id System
/dev/sda1 2048 4294967294 2147482623+ 83 Linux
Disk /dev/sdb: 64.0 GB, 64023257088 bytes
255 heads, 63 sectors/track, 7783 cylinders, total 125045424 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: 0x000ba9da
Device Boot Start End Blocks Id System
/dev/sdb1 * 2048 499711 248832 83 Linux
/dev/sdb2 501758 125044735 62271489 5 Extended
/dev/sdb5 501760 125044735 62271488 8e Linux LVM
Disk /dev/mapper/videoserve1--vg-root: 55.2 GB, 55205429248 bytes
255 heads, 63 sectors/track, 6711 cylinders, total 107823104 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: 0x00000000
Disk /dev/mapper/videoserve1--vg-root doesn't contain a valid partition table
Disk /dev/mapper/videoserve1--vg-swap_1: 8556 MB, 8556380160 bytes
255 heads, 63 sectors/track, 1040 cylinders, total 16711680 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: 0x00000000
Disk /dev/mapper/videoserve1--vg-swap_1 doesn't contain a valid partition table
df -l 的结果：
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mapper/videoserve1--vg-root 52933148 52334740 0 100% /
udev 4062900 4 4062896 1% /dev
tmpfs 1628964 352 1628612 1% /run
none 5120 0 5120 0% /run/lock
none 4072400 0 4072400 0% /run/shm
/dev/sdb1 233191 27090 193660 13% /boot
求解释，求解决方案
------解决方案--------------------
根卷爆了啊。
50G都装满了，你都装了啥？
------解决方案--------------------
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mapper/videoserve1--vg-root 52933148 52334740 0 100% /
fdisk -l结果：
Disk /dev/sda: 69000.8 GB, 69000797093888 bytes
90 heads, 3 sectors/track, 499137710 cylinders, total 134767181824 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0xc1df067f
Device Boot Start End Blocks Id System
/dev/sda1 2048 4294967294 2147482623+ 83 Linux
Disk /dev/sdb: 64.0 GB, 64023257088 bytes
255 heads, 63 sectors/track, 7783 cylinders, total 125045424 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: 0x000ba9da
Device Boot Start End Blocks Id System
/dev/sdb1 * 2048 499711 248832 83 Linux
/dev/sdb2 501758 125044735 62271489 5 Extended
/dev/sdb5 501760 125044735 62271488 8e Linux LVM
Disk /dev/mapper/videoserve1--vg-root: 55.2 GB, 55205429248 bytes
255 heads, 63 sectors/track, 6711 cylinders, total 107823104 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: 0x00000000
Disk /dev/mapper/videoserve1--vg-root doesn't contain a valid partition table
Disk /dev/mapper/videoserve1--vg-swap_1: 8556 MB, 8556380160 bytes
255 heads, 63 sectors/track, 1040 cylinders, total 16711680 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: 0x00000000
Disk /dev/mapper/videoserve1--vg-swap_1 doesn't contain a valid partition table
df -l 的结果：
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mapper/videoserve1--vg-root 52933148 52334740 0 100% /
udev 4062900 4 4062896 1% /dev
tmpfs 1628964 352 1628612 1% /run
none 5120 0 5120 0% /run/lock
none 4072400 0 4072400 0% /run/shm
/dev/sdb1 233191 27090 193660 13% /boot
求解释，求解决方案
------解决方案--------------------
根卷爆了啊。
50G都装满了，你都装了啥？
------解决方案--------------------
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mapper/videoserve1--vg-root 52933148 52334740 0 100% /