--- title: "Failed to start File System Check on vCenter Server Appliance (vCSA)" date: "2017-08-21T10:31:22Z" tags: ["File System", "vCenter Server"] categories: ["Linux & Open Source", "VMware"] --- ![failed-to-start-file-system-check-on-vcenter-server-appliance-vcsa-logo][1] My lab hasn't been used for a few weeks due to business in a Project. As I have a VCIX6-NV exam on this Friday I had to refresh my knowledge and prepare myself a bit before I try to pass it. I was quite surprised when I logged into the lab and it was down. After quick login to ESXi, I discovered an error on vCSA and PSC - **Failed to start File System Check on /dev/dis…uuid**. Today I will show you what needs to be done after such failure to recover your vCSA / PSC appliance. Here is the error I mentioned in the headline. ![failed-to-start-file-system-check-on-vcenter-server-appliance-vcsa-1][2] Let's fix this issue. 1. Open the favorite console on the appliance vCSA / PSC and type **cat /run/initramfs/rdsosreport.txt**. 2. Once the scroll finishes search for disk device /dev/sda*. In my case, it was **/dev/sda3**. ![failed-to-start-file-system-check-on-vcenter-server-appliance-vcsa-2][3] 3. Now in order to fix the file system on the appliance, we must run the following command - **fsck /dev/sda3**. 4. Several times fsck will ask you to confirm various fixes (inodes, directories structure of block bitmap differences). ![failed-to-start-file-system-check-on-vcenter-server-appliance-vcsa-3][4] 5. Once the fixes are applied reboot vCSA / PSC appliance and it should go back online without any issues. ![failed-to-start-file-system-check-on-vcenter-server-appliance-vcsa-4][5] I hope this post was informative and you were able to fix your broken vCenter Server Appliance or Platform Services Controller. [1]: /images/uploads/2017/08/failed-to-start-file-system-check-on-vcenter-server-appliance-vcsa-logo.webp [2]: /images/uploads/2017/08/failed-to-start-file-system-check-on-vcenter-server-appliance-vcsa-1.webp [3]: /images/uploads/2017/08/failed-to-start-file-system-check-on-vcenter-server-appliance-vcsa-2.webp [4]: /images/uploads/2017/08/failed-to-start-file-system-check-on-vcenter-server-appliance-vcsa-3.webp [5]: /images/uploads/2017/08/failed-to-start-file-system-check-on-vcenter-server-appliance-vcsa-4.webp