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sudo  vgdisplay

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sudo lvextend -L+20G /dev/vg/home

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linuxÏ´óÎļþ¶ÁдԴÂëʾÀý

#define _LARGEFILE_SOURCE
#define _LARGEFILE64_SOURCE
#define _FILE_OFFSET_BITS 64
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdio.h>
#include <fcntl.h>
int main()
{
printf("sizeof(off_t) = %d\n", sizeof(off_t));
int ......

linuxϹ²ÏíÄÚ´æ(shm)ʹÓÃʾÀý

#include <sys/ipc.h>
#include <stdio.h>
#include <sys/shm.h>
#include <sys/types.h>
#include <unistd.h>
#include <string.h>
#define PERM IPC_CREAT //S_IRUSR|S_IWUSR
#include <errno.h>
int main(int argc,char **argv)
{
int shmid[2048];
c ......

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