崩溃后,我得到了一个Ext4文件系统(在LVM上),在运行fsck.ext4 -nf时会出现以下错误:
e2fsck 1.42.12 (29-Aug-2014)
Corruption found in superblock. (blocks_count = 0).
The superblock could not be read or does not describe a valid ext2/ext3/ext4
filesystem. If the device is valid and it really contains an ext2/ext3/ext4
filesystem
/* angus - Simple program to open,release,read,write */
#include<linux/fs.h>
#include<linux/uaccess.h>
#include<linux/slab.h>
#include<linux/gfp.h>
char *my_buff;
int major = -1;
int my_open(struct inode *inodes, struct file *files);
int my_release(struct inode *inodes, str
HAXM升级后Android仿真器无法工作
日志:
emulator: WARNING: Crash service did not start
emulator: WARNING: VM heap size set below hardware specified minimum of 80MB
emulator: WARNING: Setting VM heap size to 256MB
emulator: WARNING: Classic qemu does not support SMP. The hw.cpu.ncore option from your config file
通过linux机器的控制台,我得到了下面的错误。
Welcome to emergency mode! After logging in, type "journalctl -xb" to view system logs, "systemctl reboot" to reboot, "systemctl default" to try again to boot into default mode.
systemd-fsck[160090]: /dev/sda3: Inodes that were part of a corrupted orp
我注意到/proc和/dev在ubuntu上的挂载方式与其他linux发行版不同,如下所示:
Ubuntu:
udev on /dev type devtmpfs (rw,nosuid,relatime,size=4079136k,nr_inodes=1019784,mode=755)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
ALinux:
devtmpfs on /dev type devtmpfs (rw,relatime,size=1015576k,nr_inodes=253894,mode=755)
p
我有下面的脚本,它对Ubuntu18.04很好
#!/bin/bash
set -euo pipefail
# This form is convenient for locking a file without spawning a
# subprocess. The shell opens the lock file for reading and
# writing as file descriptor 9, then flock is used to lock the
# descriptor.
# Source: https://man7.org/linux/man-pages/ma
目前,我正在尝试为quectel的sc20构建一个yocto镜像,我得到了这个错误。
文件msm8990.inc的RECOVERYFS_SIZE_EXT4='268435456‘
我如何处理这种类型的问题?
这是一个完整的日志
ERROR: machine-recovery-image-1.0-r0 do_makesystem: Function failed: do_makesystem (log file is located at /opt/poky/build/tmp-glibc/work/msm8909-oe-linux-gnueabi/machine-recovery-i
我需要获得主机名、内存、核心、存储、为多个节点安装的包(~1k)。我用刀接近了这个溶液。
$ knife search node 'hostname:HostName1 OR hostname:HostName2 OR hostname:HostName3' -a hostname -a cpu.cores -a memory.total -a rpm -a filesystem.by_device -F j|jq '.'
该命令的典型输出如下;
{
"results": 3,
"rows": [
{
我正在尝试使用iNodes数组(我创建的结构):
typedef struct iNode
{
int id;
int size;
int pointers[NUM_POINTERS];
} iNode;
我在下面的代码中得到了segmentation fault:
for (int k = 0; k < NUM_POINTERS-1; k++) {
root->pointers[k+1] = k+2;
iNode *inodes[maxiNodePerBlock];
for (i
我试图从一个包含系统文件的文件夹(从system.img中提取)构建system.img。
system.img用于仿真器上的Api 25级( Android )
我正在尝试运行这个命令
sudo make_ext4fs -L system -l 274783648 -a system new_system.img savedir/
但我知道这个错误
Creating filesystem with parameters:
Size: 274780160
Block size: 4096
Blocks per group: 32768
Inodes per gr
有没有办法检查我是否达到了Linux中任何一种缓冲区的限制/内核限制?
就像一条命令告诉你:
openfile limit reached
max net connection reached
net buffer full
inodes full
memory buffer full
服务器中所有其他奇怪的缓冲区可能会变满,就像FreeBSD中的vmstat -z一样。
附言:我知道我可以查看日志,但如果我有大量的行,这是一个缓慢的过程。
我运行挂载命令来查看到目前为止设置了什么。Ubuntu22.04.1LTS(GNU/Linux5.15.0-56-泛型x86_64)输出片段:
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs (rw,nosuid,relatime,size=8029452k,nr_inodes=2007363,mode=755,inode64)
devpts on /dev
我从一个可引导的Ubuntu USB棒上做了一次检查,然后运行
sudo fsck -y /dev/sda2
在计算机的主Linux分区上。输出类似于
...
Pass 1B: Rescanning for multiply-claimed blocks
Error while scanning inodes (207...): Inode checksum does not match inode
/dev/sda2: **** FILE SYSTEM WAS MODIFIED ***
e2fsck: aborted
/dev/sda2: **** FILE SYSTEM WAS MO