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Operating Systems Solaris Not able to run fsck on root file system Post 302597341 by newbi8321 on Friday 10th of February 2012 03:01:17 AM
Old 02-10-2012
Not able to run fsck on root file system

I am trying to root disk mirroring on SunFire V210 Server. There are two disks on this server c1t0d0 and c1t1d0 . I completed all the steps and I updated the vfstab file too. After I have updated the vfstab file I run df -h command but could not see the changes i made in vfstab. Suddenly the server got rebooted automatically and I could not boot the server. So I put the solaris 10 cd and did boot cdrom -s and mount /dev/dsk/c1t0d0s0 /a . Then I tried to do the fsck /dev/dsk/c1t0d0s0 but could not do that. c1t0d0s0 has the mount point /. Could any one give me a hint or suggestion on why I cant run fsck command.thanks in advance.
Smilie

Code:
# fsck /dev/dsk/c1t0d0s0
NOTICE: /a: unexpected free inode 1476, run fsck(1M)
NOTICE: /a: unexpected free inode 1476, run fsck(1M)
NOTICE: /a: unexpected free inode 1476, run fsck(1M)
/dev/dsk/c1t0d0s0 IS CURRENTLY MOUNTED READ/WRITE.
CONTINUE? y

** /dev/dsk/c1t0d0s0
BAD SUPERBLOCK AT BLOCK 16: NUMBER OF DIRECTORIES OUT OF RANGE

LOOK FOR ALTERNATE SUPERBLOCKS WITH MKFS? y

calcsb: short read of superblock from mkfs

LOOK FOR ALTERNATE SUPERBLOCKS WITH NEWFS? y

SEARCH FOR ALTERNATE SUPERBLOCKS FAILED.

USE GENERIC SUPERBLOCK FROM MKFS? y

calcsb: short read of superblock from mkfs

USE GENERIC SUPERBLOCK FROM NEWFS?

SEARCH FOR ALTERNATE SUPERBLOCKS FAILED. YOU MUST USE THE -o b OPTION
TO FSCK TO SPECIFY THE LOCATION OF A VALID ALTERNATE SUPERBLOCK TO
SUPPLY NEEDED INFORMATION; SEE fsck(1M).

 
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SYSTEMD-FSCK@.SERVICE(8)				       systemd-fsck@.service					  SYSTEMD-FSCK@.SERVICE(8)

NAME
systemd-fsck@.service, systemd-fsck-root.service, systemd-fsck - File system checker logic SYNOPSIS
systemd-fsck@.service systemd-fsck-root.service /lib/systemd/systemd-fsck DESCRIPTION
systemd-fsck@.service and systemd-fsck-root.service are services responsible for file system checks. They are instantiated for each device that is configured for file system checking. systemd-fsck-root.service is responsible for file system checks on the root file system, but only if the root filesystem was not checked in the initramfs. systemd-fsck@.service is used for all other file systems and for the root file system in the initramfs. These services are started at boot if passno in /etc/fstab for the file system is set to a value greater than zero. The file system check for root is performed before the other file systems. Other file systems may be checked in parallel, except when they are on the same rotating disk. systemd-fsck does not know any details about specific filesystems, and simply executes file system checkers specific to each filesystem type (/sbin/fsck.*). This helper will decide if the filesystem should actually be checked based on the time since last check, number of mounts, unclean unmount, etc. If a file system check fails for a service without nofail, emergency mode is activated, by isolating to emergency.target. KERNEL COMMAND LINE
systemd-fsck understands these kernel command line parameters: fsck.mode= One of "auto", "force", "skip". Controls the mode of operation. The default is "auto", and ensures that file system checks are done when the file system checker deems them necessary. "force" unconditionally results in full file system checks. "skip" skips any file system checks. fsck.repair= One of "preen", "yes", "no". Controls the mode of operation. The default is "preen", and will automatically repair problems that can be safely fixed. "yes" will answer yes to all questions by fsck and "no" will answer no to all questions. SEE ALSO
systemd(1), fsck(8), systemd-quotacheck.service(8), fsck.btrfs(8), fsck.cramfs(8), fsck.ext4(8), fsck.fat(8), fsck.hfsplus(8), fsck.minix(8), fsck.ntfs(8), fsck.xfs(8) systemd 237 SYSTEMD-FSCK@.SERVICE(8)

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