How to Checking or Repairing a File System using fsck in Linux

<div dir="ltr" style="text-align: left;" trbidi="on"> <h1 class="eb-entry-title reset-heading " id="title-1730" itemprop="name headline" style="background-attachment: initial; background-clip: initial; background-image: none; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; border: medium none; box-sizing: border-box; clear: none; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; line-height: 1.1; margin: 0px; padding: 0px; position: static; text-rendering: optimizeLegibility; width: auto;"> <span style="color: #990000; font-size: large;"><u>Checking or Repairing a File System using fsck</u></span></h1> <div> <span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">The system utility fsck (for "file system consistency check") is a tool for checking the consistency of a file system in <a href="http://www.hackthesec.co.in/search/label/Unix">Unix</a> and Unix-like operating systems, such as <a href="http://www.hackthesec.co.in/search/label/Linux%20Tutorial">Linux</a> and OS X</span></span><span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif; font-size: 15px; line-height: 26px;">.</span></div> <div class="separator" style="clear: both; text-align: center;"> <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhT3zA_Ce2jkt8KJpCnN8_jrHnY76tM9fEnkCvmfj6HKjsIWOHjBMbUc1BDB-Qobhy1-B3PRUC-OfW1e9XWG8eNyUmK4L90VMmVO02IV41GzJLJB7PUmWz00U3PElrRnieIL6csOsnO85Gg/s1600/fsck-check-filesystem-www.hackthesec.co.in.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhT3zA_Ce2jkt8KJpCnN8_jrHnY76tM9fEnkCvmfj6HKjsIWOHjBMbUc1BDB-Qobhy1-B3PRUC-OfW1e9XWG8eNyUmK4L90VMmVO02IV41GzJLJB7PUmWz00U3PElrRnieIL6csOsnO85Gg/s1600/fsck-check-filesystem-www.hackthesec.co.in.jpg" /></a></div> <div> <span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif; font-size: 15px; line-height: 26px;"><br /></span></div> <div> <span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Firstly, we can change the number to 50, which chooses how often you want the check performed.</span></span></div> <div> <pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-family: "trebuchet ms" , sans-serif;"><span style="font-size: 15px; line-height: 15.6px;"># tune2fs -c 50 /dev/hda1</span></span></pre> </div> <div> <span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">1 makes it scan at every boot, </span></span></div> <div> <pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-family: "trebuchet ms" , sans-serif;"><span style="font-size: 15px; line-height: 15.6px;"># tune2fs -c 1 /dev/hda1</span></span></pre> </div> <div> <span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">0 stops scanning altogether</span></span></div> <div> <pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-family: "trebuchet ms" , sans-serif;"><span style="font-size: 15px; line-height: 15.6px;"># tune2fs -c 0 /dev/hda1</span></span></pre> </div> <div> <div style="font-family: Verdana, Geneva, sans-serif; font-size: 15px; line-height: 26px;"> <b><u><span style="color: #0b5394;">What /etc/fstab lines mean?</span></u></b></div> <div style="color: #222222; font-family: Verdana, Geneva, sans-serif; font-size: 15px; line-height: 26px;"> We have the following mounts</div> <div> <pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-family: "trebuchet ms" , sans-serif;"><span style="font-size: 15px; line-height: 15.6px;">/dev/nvme0n1 / ext4 defaults 1 1 /dev/nvme1n1 /home ext4 defaults 1 2</span></span></pre> </div> </div> <div> <div style="color: #222222; font-family: Verdana, Geneva, sans-serif; font-size: 15px; line-height: 26px;"> <b><u>Defined as:</u></b></div> <div style="color: #222222; font-family: Verdana, Geneva, sans-serif; font-size: 15px; line-height: 26px;"> <ul style="text-align: left;"> <li>0 = Do not check.</li> <li>1 = First file system (partition) to check;<br /> / (root partition) should be set to 1.</li> </ul> </div> <div style="color: #222222; font-family: Verdana, Geneva, sans-serif;"> <ul style="font-size: 15px; line-height: 26px; text-align: left;"> <li>2 = ALL OTHER file systems to be checked.</li> </ul> <div> <span style="font-size: 15px; line-height: 26px;">Not recommended you could disable checks all together but using the below mounts, changing 1 to 0 like example.</span></div> </div> <div> <pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-family: "trebuchet ms" , sans-serif;"><span style="font-size: 15px; line-height: 15.6px;">/dev/nvme0n1 / ext4 defaults 0 1 /dev/nvme1n1 /home ext4 defaults 0 2</span></span></pre> </div> <div> <div style="color: #222222; font-family: Verdana, Geneva, sans-serif; font-size: 15px; line-height: 26px;"> Changing to 0 would disable disk checks.</div> <div style="color: #222222; font-family: Verdana, Geneva, sans-serif; font-size: 15px; line-height: 26px;"> Another was to check a hard drive is by touching a file called forcefsck, then reboot to check a disk.</div> <div> <span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Creating a forcefsck file triggers the file system to check hard disks after a restart, type below: </span></span></div> </div> </div> <div> <pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-family: "trebuchet ms" , sans-serif;"><span style="font-size: 15px; line-height: 15.6px;"># touch /forcefsck</span></span></pre> </div> <div> <div style="color: #222222; font-family: Verdana, Geneva, sans-serif; font-size: 15px; line-height: 26px;"> I noticed this doesn't always work depending on your distributions and checkroot scripts during initial bootup.</div> <div style="color: #222222; font-family: Verdana, Geneva, sans-serif; font-size: 15px; line-height: 26px;"> There is also the -i switch to set an interval before the check if you prefer.</div> <div> <pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-family: "trebuchet ms" , sans-serif;"><span style="font-size: 15px; line-height: 15.6px;"># tune2fs -c 50 -i 1m /dev/nvme0n1</span></span></pre> </div> </div> <div> <span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b>How do you get the information from the drive on how many restarts will the fsck run?</b></span></span></div> <div> <pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-family: "trebuchet ms" , sans-serif;"><span style="font-size: 15px; line-height: 15.6px;"># dumpe2fs -h /dev/sdb1 | grep -i 'mount count'</span></span></pre> </div> <div> <span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Outpur : -</span></span></div> <div> <pre class="xtypo_info" style="background: url("assets/shadow.png") 50% 100% repeat-x rgb(245, 245, 245); border-radius: 4px; border: 1px solid rgb(204, 204, 204); box-shadow: rgb(204, 204, 204) 0px 0px 3px; box-sizing: border-box; font-stretch: normal; margin-bottom: 10px; overflow: auto; padding: 9.5px; tab-size: 4; text-shadow: rgb(255, 255, 255) 0px 1px 0px; word-break: break-all; word-wrap: break-word;"><span style="color: #333333; font-family: "menlo" , "monaco" , "consolas" , "courier new" , monospace;"><span style="line-height: 18.5714px; white-space: pre-wrap;">dumpe2fs 1.39 (29-May-2006) Mount count: 26 Maximum mount count: 31</span></span></pre> </div> <div> <span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">On <a href="http://www.hackthesec.co.in/search/label/Debian">Debian</a>, <a href="http://www.hackthesec.co.in/search/label/Ubuntu">Ubuntu</a> or <a href="http://www.hackthesec.co.in/search/label/LinuxMint">Linux Mint</a>, edit /etc/default/rcS as follows.</span></span></div> <div> <pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-family: "trebuchet ms" , sans-serif;"><span style="font-size: 15px; line-height: 15.6px;"># vim /etc/default/rcS</span></span></pre> </div> <div> <span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Automatically repair filesystems with inconsistencies during boot</span></span></div> <div> <pre class="xtypo_info" style="background: url("assets/shadow.png") 50% 100% repeat-x rgb(245, 245, 245); border-radius: 4px; border: 1px solid rgb(204, 204, 204); box-shadow: rgb(204, 204, 204) 0px 0px 3px; box-sizing: border-box; color: #333333; font-family: Menlo, Monaco, Consolas, 'Courier New', monospace; font-size: 13px; font-stretch: normal; line-height: 1.42857; margin-bottom: 10px; overflow: auto; padding: 9.5px; tab-size: 4; text-shadow: rgb(255, 255, 255) 0px 1px 0px; white-space: pre-wrap; word-break: break-all; word-wrap: break-word;">FSCKFIX=yes</pre> </div> <div> <div style="font-family: Verdana, Geneva, sans-serif; font-size: 15px; line-height: 26px;"> <span style="color: #222222;"><b>Note:</b> </span><span style="color: red;">FSCKFIX=yes doesn't trigger automatic filesystem check on boot, it just attempts to fix all the errors automatically if fsck is triggered. </span></div> <div style="color: #222222; font-family: Verdana, Geneva, sans-serif; font-size: 15px; line-height: 26px;"> <br /></div> <div style="color: #222222; font-family: Verdana, Geneva, sans-serif; font-size: 15px; line-height: 26px;"> On <a href="http://www.hackthesec.co.in/search/label/Centos">CentOS</a>, edit /etc/sysconfig/autofsck (or create it if it doesn't exist) with the following content.</div> <div> <pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-family: "trebuchet ms" , sans-serif;"><span style="font-size: 15px; line-height: 15.6px;"># vim /etc/sysconfig/autofsck</span></span></pre> </div> </div> <div> <span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Add following line:</span></span></div> <div> <pre class="xtypo_info" style="background: url("assets/shadow.png") 50% 100% repeat-x rgb(245, 245, 245); border-radius: 4px; border: 1px solid rgb(204, 204, 204); box-shadow: rgb(204, 204, 204) 0px 0px 3px; box-sizing: border-box; color: #333333; font-family: Menlo, Monaco, Consolas, 'Courier New', monospace; font-size: 13px; font-stretch: normal; line-height: 1.42857; margin-bottom: 10px; overflow: auto; padding: 9.5px; tab-size: 4; text-shadow: rgb(255, 255, 255) 0px 1px 0px; white-space: pre-wrap; word-break: break-all; word-wrap: break-word;">AUTOFSCK_DEF_CHECK=yes</pre> </div> <div> <span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Checking file system state:</span></span></div> <div> <pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-family: "trebuchet ms" , sans-serif;"><span style="font-size: 15px; line-height: 15.6px;"># tune2fs -l /dev/nvme0n1 | grep -i state</span></span></pre> </div> <div> <span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Output:-</span></span></div> <div> <pre class="xtypo_info" style="background: url("assets/shadow.png") 50% 100% repeat-x rgb(245, 245, 245); border-radius: 4px; border: 1px solid rgb(204, 204, 204); box-shadow: rgb(204, 204, 204) 0px 0px 3px; box-sizing: border-box; color: #333333; font-family: Menlo, Monaco, Consolas, 'Courier New', monospace; font-size: 13px; font-stretch: normal; line-height: 1.42857; margin-bottom: 10px; overflow: auto; padding: 9.5px; tab-size: 4; text-shadow: rgb(255, 255, 255) 0px 1px 0px; white-space: pre-wrap; word-break: break-all; word-wrap: break-word;">Filesystem state:clean</pre> </div> <div> <span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Listing all other attributes</span></span></div> <div> <pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-family: "trebuchet ms" , sans-serif;"><span style="font-size: 15px; line-height: 15.6px;"># tune2fs -l /dev/nvme0n1</span></span></pre> </div> <div> <div> <span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Output:-</span></span></div> <div> <pre class="xtypo_info" style="background: url("assets/shadow.png") 50% 100% repeat-x rgb(245, 245, 245); border-radius: 4px; border: 1px solid rgb(204, 204, 204); box-shadow: rgb(204, 204, 204) 0px 0px 3px; box-sizing: border-box; font-stretch: normal; margin-bottom: 10px; overflow: auto; padding: 9.5px; tab-size: 4; text-shadow: rgb(255, 255, 255) 0px 1px 0px; word-break: break-all; word-wrap: break-word;"><span style="color: #333333; font-family: "menlo" , "monaco" , "consolas" , "courier new" , monospace;"><span style="line-height: 18.5714px; white-space: pre-wrap;">tune2fs 1.39 (29-May-2006) Filesystem volume name: <none> Last mounted on: <not available> Filesystem UUID: ca04ea89-dd64-4e57-a5a2-a9cfff610da0 Filesystem magic number: 0xEF53 Filesystem revision #: 1 (dynamic) Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery sparse_super large_file Default mount options: acl Filesystem state: clean Errors behavior: Continue Filesystem OS type: Linux Inode count: 61063168 Block count: 122096646 Reserved block count: 6104832 Free blocks: 119393584 Free inodes: 61062869 First block: 0 Block size: 4096 Fragment size: 4096 Reserved GDT blocks: 994 Blocks per group: 32768 Fragments per group: 32768 Inodes per group: 16384 Inode blocks per group: 512 Filesystem created: Fri Feb 5 04:42:53 2016 Last mount time: Tue Mar 15 02:03:45 2016 Last write time: Tue Mar 15 02:03:45 2016 Mount count: 26 Maximum mount count: 31 Last checked: Fri Feb 5 04:42:53 2016 Check interval: 15552000 (6 months) Next check after: Wed Aug 3 05:42:53 2016 Reserved blocks uid: 0 (user root) Reserved blocks gid: 0 (group root) First inode: 11 Inode size: 128 Journal inode: 8 Default directory hash: tea Directory Hash Seed: d757b293-691f-4220-890e-70cda6889cc8 Journal backup: inode blocks</span></span><span style="color: #333333; font-family: "menlo" , "monaco" , "consolas" , "courier new" , monospace; font-size: 13px; line-height: 1.42857; white-space: pre-wrap;"> </span></pre> </div> </div> <div> <br /></div> <div> <span style="color: #0b5394; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>Schedule  File System Checks Monthly</u></b></span></span></div> <div> <span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Force filesystem check for every 1 months, use the command below.</span></span></div> <div> <pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-family: "trebuchet ms" , sans-serif;"><span style="font-size: 15px; line-height: 15.6px;"># tune2fs -i 1m /dev/nvme0n1</span></span></pre> </div> <div> <div> <span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Output:-</span></span></div> <div> <pre class="xtypo_info" style="background: url("assets/shadow.png") 50% 100% repeat-x rgb(245, 245, 245); border-radius: 4px; border: 1px solid rgb(204, 204, 204); box-shadow: rgb(204, 204, 204) 0px 0px 3px; box-sizing: border-box; font-stretch: normal; margin-bottom: 10px; overflow: auto; padding: 9.5px; tab-size: 4; text-shadow: rgb(255, 255, 255) 0px 1px 0px; word-break: break-all; word-wrap: break-word;"><span style="color: #333333; font-family: "menlo" , "monaco" , "consolas" , "courier new" , monospace; line-height: 18.5714px; white-space: pre-wrap;">tune2fs 1.39 (29-May-2006)</span><span style="color: #333333; font-family: "menlo" , "monaco" , "consolas" , "courier new" , monospace;"><span style="line-height: 18.5714px; white-space: pre-wrap;"> Setting interval between checks to </span></span><span style="color: #333333; font-family: "menlo" , "monaco" , "consolas" , "courier new" , monospace; line-height: 18.5714px; white-space: pre-wrap;">15552000</span><span style="color: #333333; font-family: "menlo" , "monaco" , "consolas" , "courier new" , monospace; line-height: 18.5714px; white-space: pre-wrap;"> seconds</span></pre> </div> </div> <div> <span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Now verify the scheduled monthly disk check.</span></span></div> <div> <pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-family: "trebuchet ms" , sans-serif;"><span style="font-size: 15px; line-height: 15.6px;"># tune2fs -l /dev/nvme0n1 | grep -i interval</span></span></pre> </div> <div> <div> <span style="color: #222222; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px; line-height: 26px;">Output:-</span></span></div> <div> <pre class="xtypo_info" style="background: url("assets/shadow.png") 50% 100% repeat-x rgb(245, 245, 245); border-radius: 4px; border: 1px solid rgb(204, 204, 204); box-shadow: rgb(204, 204, 204) 0px 0px 3px; box-sizing: border-box; font-stretch: normal; margin-bottom: 10px; overflow: auto; padding: 9.5px; tab-size: 4; text-shadow: rgb(255, 255, 255) 0px 1px 0px; word-break: break-all; word-wrap: break-word;"><span style="color: #333333; font-family: "menlo" , "monaco" , "consolas" , "courier new" , monospace;"><span style="line-height: 18.5714px; white-space: pre-wrap;">Check interval: 15552000 (1 months)</span></span></pre> <pre class="xtypo_info" style="background: url("assets/shadow.png") 50% 100% repeat-x rgb(245, 245, 245); border-radius: 4px; border: 1px solid rgb(204, 204, 204); box-shadow: rgb(204, 204, 204) 0px 0px 3px; box-sizing: border-box; font-stretch: normal; margin-bottom: 10px; overflow: auto; padding: 9.5px; tab-size: 4; text-shadow: rgb(255, 255, 255) 0px 1px 0px; word-break: break-all; word-wrap: break-word;"><span style="color: #333333; font-family: "menlo" , "monaco" , "consolas" , "courier new" , monospace;"><a href="http://www.hackthesec.co.in/" style="line-height: 18.5714px; white-space: pre-wrap;">www.hackthesec.co.in</a><span style="line-height: 18.5714px; white-space: pre-wrap;"> </span><a href="https://www.twitter.com/Hackthesecurity" style="line-height: 18.5714px; white-space: pre-wrap;">https://www.twitter.com/Hackthesecurity</a><span style="line-height: 18.5714px; white-space: pre-wrap;"> <a href="http://facebook.com/htsecu">http://facebook.com/htsecu</a> <a href="http://feeds.hackthesec.co.in/hackthesec">http://feeds.hackthesec.co.in/hackthesec</a></span></span></pre> </div> </div> <div> <br /></div> </div>

How to Checking or Repairing a File System using fsck in Linux

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