azure云中 mount: wrong fs type, bad option, bad superblock on /dev/sdc1
2016-01-31 23:46
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2016-01-30 mount失败问题解决
[root@mofficedb2 ~]# mount /dev/sdc /dta
mount: you must specify the filesystem type
[root@mofficedb2 ~]#
[root@mofficedb1 ~]# mount -t ext4 /dev/sdc1 /data
mount: wrong fs type, bad option, bad superblock on /dev/sdc1,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
[root@mofficedb2 ~]# mount /dev/sdc /dta
mount: you must specify the filesystem type
[root@mofficedb2 ~]#
[root@mofficedb1 ~]# mount -t ext4 /dev/sdc1 /data
mount: wrong fs type, bad option, bad superblock on /dev/sdc1,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
[code][root@mofficedb1 ~]# cat /proc/filesystems nodev sysfs nodev rootfs nodev bdev nodev proc nodev cgroup nodev cpuset nodev tmpfs nodev devtmpfs nodev binfmt_misc nodev debugfs nodev securityfs nodev sockfs nodev usbfs nodev pipefs nodev anon_inodefs nodev inotifyfs nodev devpts nodev ramfs nodev hugetlbfs iso9660 nodev pstore nodev mqueue nodev selinuxfs ext4 nodev autofs [root@mofficedb1 ~]# 查看后台支持的文件格式,其中2.6.32-431.29.2.el6.x86_64目录因系统版本会不一样,可以通过find /lib/modules/ -name kernel命令查找出真实目录 [root@mofficedb1 ~]# ll /lib/modules/2.6.32-431.29.2.el6.x86_64/kernel/fs total 132 drwxr-xr-x. 2 root root 4096 Sep 25 2014 autofs4 drwxr-xr-x. 2 root root 4096 Sep 25 2014 btrfs drwxr-xr-x. 2 root root 4096 Sep 25 2014 cachefiles drwxr-xr-x. 2 root root 4096 Sep 25 2014 cifs drwxr-xr-x. 2 root root 4096 Sep 25 2014 configfs drwxr-xr-x. 2 root root 4096 Sep 25 2014 cramfs drwxr-xr-x. 2 root root 4096 Sep 25 2014 dlm drwxr-xr-x. 2 root root 4096 Sep 25 2014 ecryptfs drwxr-xr-x. 2 root root 4096 Sep 25 2014 exportfs drwxr-xr-x. 2 root root 4096 Sep 25 2014 ext2 drwxr-xr-x. 2 root root 4096 Sep 25 2014 ext3 drwxr-xr-x. 2 root root 4096 Sep 25 2014 ext4 drwxr-xr-x. 2 root root 4096 Sep 25 2014 fat drwxr-xr-x. 2 root root 4096 Sep 25 2014 fscache drwxr-xr-x. 2 root root 4096 Sep 25 2014 fuse drwxr-xr-x. 2 root root 4096 Sep 25 2014 gfs2 drwxr-xr-x. 2 root root 4096 Sep 25 2014 jbd drwxr-xr-x. 2 root root 4096 Sep 25 2014 jbd2 drwxr-xr-x. 2 root root 4096 Sep 25 2014 jffs2 drwxr-xr-x. 2 root root 4096 Sep 25 2014 lockd -rwxr--r--. 1 root root 19920 Sep 9 2014 mbcache.ko drwxr-xr-x. 2 root root 4096 Sep 25 2014 nfs drwxr-xr-x. 2 root root 4096 Sep 25 2014 nfs_common drwxr-xr-x. 2 root root 4096 Sep 25 2014 nfsd drwxr-xr-x. 2 root root 4096 Sep 25 2014 nls drwxr-xr-x. 2 root root 4096 Sep 25 2014 squashfs drwxr-xr-x. 2 root root 4096 Sep 25 2014 ubifs drwxr-xr-x. 2 root root 4096 Sep 25 2014 udf drwxr-xr-x. 2 root root 4096 Sep 25 2014 xfs [root@mofficedb1 ~]# 查看本系统的文件格式: [root@mofficedb1 ~]# df -T -h Filesystem Type Size Used Avail Use% Mounted on /dev/sda1 ext4 29G 2.8G 25G 11% / tmpfs tmpfs 14G 0 14G 0% /dev/shm /dev/sdb1 ext4 56G 180M 53G 1% /mnt/resource [root@mofficedb1 ~]# fdisk /dev/sdc后,出现/dev/sdc1 Disk /dev/sdc: 53.7 GB, 53687091200 bytes 255 heads, 63 sectors/track, 6527 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x4cb42802 Device Boot Start End Blocks Id System /dev/sdc1 1 6527 52428096 83 Linux [root@mofficedb2 ~]# 有一个输入w的命令是写磁盘文件初始化的,如果失败了没有成功,就执行mkfs.ext4 /dev/sdc1 mkfs.ext4 /dev/sdc1 [root@mofficedb2 ~]# mkfs.ext4 /dev/sdc1 mke2fs 1.41.12 (17-May-2010) Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) Stride=0 blocks, Stripe width=0 blocks 3276800 inodes, 13107024 blocks 655351 blocks (5.00%) reserved for the super user First data block=0 Maximum filesystem blocks=4294967296 400 block groups 32768 blocks per group, 32768 fragments per group 8192 inodes per group Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 4096000, 7962624, 11239424 Writing inode tables: done Creating journal (32768 blocks): done Writing superblocks and filesystem accounting information: done This filesystem will be automatically checked every 37 mounts or 180 days, whichever comes first. Use tune2fs -c or -i to override. [root@mofficedb2 ~]# [root@mofficedb2 ~]# mount /dev/sdc1 /data [root@mofficedb2 ~]# df -T -h Filesystem Type Size Used Avail Use% Mounted on /dev/sda1 ext4 29G 2.4G 25G 9% / tmpfs tmpfs 14G 0 14G 0% /dev/shm /dev/sdb1 ext4 56G 180M 53G 1% /mnt/resource /dev/sdc1 ext4 50G 180M 47G 1% /data [root@mofficedb2 ~]# PS:网友的方案 超级块损坏,但是文件系统都是有超级块备份的,只需要重新恢复超级块就可以了 mkfs.ext4 -n device 该命令最好就是超级块的备份位置 mkfs.ext4 -b superblocknum device 这样就行了 为了使mount在重启vm后生效,还需要配置/etc/fstab vim /etc/fstab /dev/sdc /data ext4 defaults 1 2 重启后,出现 Could not chdir to home directory /home/adminuser: No such file or directory的错误 是因为/etc/fstab里面配置错误
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