今天在进行lvm扩容之后,按照惯例进行 resize2fs 操作,发现报如下错误: # resize2fs /dev/centos/root resize2fs 1.42.9 (28-Dec-2013) resize2fs: Bad magic number in super-block while trying to open /dev/centos/root Couldn't find valid filesystem superblock. 检查 /dev/centos/root 文件系统…
LVM XFS增加硬盘分区容量(resize2fs: Bad magic number -- :: 分类: Linux LVM XFS增加硬盘分区容量(resize2fs: Bad magic number in super-block while) 给某个硬盘增加分区之后 [root@Mysql01-- ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_mysql0121366-LogVol02 .7G .6…
I am trying to resize a logical volume on CentOS7 but am running into the following error: resize2fs (-Dec-) resize2fs: Bad magic number in super-block while trying to open /dev/mapper/centos-root Couldn't find valid filesystem superblock. solution:…
问题描述:根目录空间占用率100% 首先用传统resize2fs方式调整分区: resize2fs -p /dev/mapper/centos-home 50Gresize2fs 1.42.9 (28-Dec-2013)resize2fs: Bad magic number in super-block while trying to open /dev/mapper/centos-homeCouldn't find valid filesystem superblock. 报错原因是因为文件系…
按照阿里云官网教程对云服务器进行磁盘扩容,使用fdisk重新分区,最后使用e2fsck和resize2fs来完成文件系统层面的扩容 在执行“e2fsck -f /dev/vdb1”命令时报错,如果你的问题和下面的错误一样,可以接着往下看: [root@aliyunsrv ~]# e2fsck -f /dev/vdb1 e2fsck (-May-) e2fsck: Superblock invalid, trying backup blocks... e2fsck: Bad magic numbe…
代码: int i = *reinterpret_cast<int*>(&(d += 6755399441055744.0)); 知识点: 1.reinterpret_cast<type_id> expression:type_id 必须是一个指针.引用.算术类型.函数指针或者成员指针.它可以把一个指针转换成一个整数,也可以把一个整数转换成一个指针(先把一个指针转换成一个整数,再把该整数转换成原类型的指针,还可以得到原先的指针值). 只是将bit表示进行了重新解读,不改变位…
Magic Number Time Limit:1000MS     Memory Limit:65536KB     64bit IO Format:%I64d & %I64u Submit Status Practice HDU 4323 Description There are many magic numbers whose lengths are less than 10. Given some queries, each contains a single number, if t…
Magic Number Time Limit: 2 Seconds      Memory Limit: 32768 KB A positive number y is called magic number if for every positive integer x it satisfies that put y to the right of x, which will form a new integer z, z mod y = 0. Input The input has mul…
Problem H Time Limit : 4000/2000ms (Java/Other)   Memory Limit : 65536/32768K (Java/Other) Total Submission(s) : 24   Accepted Submission(s) : 8 Problem Description A positive number y is called magic number if for every positive integer x it satisfi…
题意  假设一个正整数y满足  将随意正整数x放到y的左边得到的数z满足 z%y==0  那么这个数就是个Magic Number   给你一个范围  求这个范围内Magic Number的个数 令 l表示y的位数  ly=10^l  那么z=x*ly + y  要z%y==0   easy看出  仅仅需 x*ly%y==0 又由于x是随意的  所以一个Magic Number必须满足 ly%y==0 y<2^31  所以l最大为10 直接枚举l  找到全部符合的y即可了 当 ly%y==0  …