磁盘已满错误,但仍有 4GB/97GB

磁盘已满错误,但仍有 4GB/97GB

我的分区上剩余 4GB,但出现磁盘已满错误。

Ubuntu 磁盘程序: Size: 97 GB — 4.7 GB free (95.2% full)

df命令:

Filesystem     1K-blocks     Used Available Use% Mounted on
udev             1945292        0   1945292   0% /dev
tmpfs             394692     2132    392560   1% /run
/dev/sda8       92856968 88268000         0 100% /
tmpfs            1973456    45584   1927872   3% /dev/shm
tmpfs               5120        4      5116   1% /run/lock
tmpfs            1973456        0   1973456   0% /sys/fs/cgroup
/dev/loop1         56704    56704         0 100% /snap/core18/1885
/dev/loop2         58752    58752         0 100% /snap/discord/112
/dev/loop0         56320    56320         0 100% /snap/core18/1880
/dev/loop4         11648    11648         0 100% /snap/glade/231
/dev/loop3         58880    58880         0 100% /snap/discord/115
/dev/loop5        165376   165376         0 100% /snap/gnome-3-28-1804/128
/dev/loop6        166784   166784         0 100% /snap/gnome-3-28-1804/145
/dev/loop7        261760   261760         0 100% /snap/gnome-3-34-1804/36
/dev/loop8        223232   223232         0 100% /snap/gnome-3-34-1804/60
/dev/loop9         63616    63616         0 100% /snap/gtk-common-themes/1506
/dev/loop10       118912   118912         0 100% /snap/icloud-for-linux/166
/dev/loop11       185472   185472         0 100% /snap/obs-studio/1139
/dev/loop13        44288    44288         0 100% /snap/snap-store/415
/dev/loop12       185472   185472         0 100% /snap/obs-studio/1141
/dev/loop16        31104    31104         0 100% /snap/snapd/9279
/dev/loop17       297472   297472         0 100% /snap/vlc/1700
/dev/sda2         262144    38400    223744  15% /boot/efi
/dev/loop18        31744    31744         0 100% /snap/snapd/9607
tmpfs             394688       44    394644   1% /run/user/1000
/dev/loop15        51968    51968         0 100% /snap/snap-store/481
/dev/sdd1        7847952       16   7847936   1% /media/[username here]/A FAT32 DISK

df -i命令:

Filesystem      Inodes  IUsed   IFree IUse% Mounted on
udev            486323    697  485626    1% /dev
tmpfs           493364   1304  492060    1% /run
/dev/sda8      5931008 723915 5207093   13% /
tmpfs           493364    159  493205    1% /dev/shm
tmpfs           493364      6  493358    1% /run/lock
tmpfs           493364     18  493346    1% /sys/fs/cgroup
/dev/loop1       10775  10775       0  100% /snap/core18/1885
/dev/loop2         288    288       0  100% /snap/discord/112
/dev/loop0       10756  10756       0  100% /snap/core18/1880
/dev/loop4        1465   1465       0  100% /snap/glade/231
/dev/loop3         290    290       0  100% /snap/discord/115
/dev/loop5       27798  27798       0  100% /snap/gnome-3-28-1804/128
/dev/loop6       27807  27807       0  100% /snap/gnome-3-28-1804/145
/dev/loop7       24339  24339       0  100% /snap/gnome-3-34-1804/36
/dev/loop8       18513  18513       0  100% /snap/gnome-3-34-1804/60
/dev/loop9       62342  62342       0  100% /snap/gtk-common-themes/1506
/dev/loop10       3173   3173       0  100% /snap/icloud-for-linux/166
/dev/loop11       7221   7221       0  100% /snap/obs-studio/1139
/dev/loop13      15358  15358       0  100% /snap/snap-store/415
/dev/loop12       7221   7221       0  100% /snap/obs-studio/1141
/dev/loop16        472    472       0  100% /snap/snapd/9279
/dev/loop17      51155  51155       0  100% /snap/vlc/1700
/dev/sda2            0      0       0     - /boot/efi
/dev/loop18        472    472       0  100% /snap/snapd/9607
tmpfs           493364     99  493265    1% /run/user/1000
/dev/loop15      15843  15843       0  100% /snap/snap-store/481
/dev/sdd1            0      0       0     - /media/[username here]/A FAT32 DISK

请注意/,它显示容量为 92856968 字节:已使用 88268000 字节,但可用容量为 0?什么?我有一个 512GB 的磁盘,但它目前正在被擦除。

答案1

这 4G 是为特权进程保留的块。默认值为整个文件系统的 5%。请参阅 tune2fs 的手册页以更改此百分比:

man tune2fs
...
-m 保留块百分比
设置仅可由特权进程分配的文件系统百分比。保留一定数量的文件系统块供特权进程使用是为了避免文件系统碎片化,并允许系统守护进程(如 syslogd(8))在非特权进程被阻止写入文件系统后继续正常运行。通常,保留块的默认百分比为 5%。

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