Bug ID 771705: You may not be able to log into BIG-IP Cloud Edition if FSCK fails

Last Modified: May 29, 2024

Affected Product(s):
BIG-IP MA-VE(all modules)

Known Affected Versions:
12.1.0, 12.1.1, 12.1.2, 12.1.3,,,,,,,, 12.1.4,, 12.1.5,,,, 12.1.6, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0,,,,,,,,, 13.1.1,,,,, 13.1.3,,,,,,, 13.1.4,, 13.1.5,, 14.0.0,,,,,, 14.0.1,, 14.1.0,,,,,, 15.0.0, 15.0.1,,,,

Fixed In:
15.1.0, 14.1.2

Opened: Apr 11, 2019

Severity: 3-Major


During BIG-IP Cloud Edition bootup, if FSCK fails and requires manual intervention to recover, you may not be able to proceed. This occurs because login requires the password for root, which is not typically set.


Cannot log in to BIG-IP Cloud Edition. Important: There is no way to recover if the FSCK failure has already occurred. You must begin the BIG-IP Cloud Edition configuration again. You should implement the Workaround to prevent the issue from occurring.


-- BIG-IP Cloud Edition. -- FSCK failure on bootup requires manual intervention to recover.


To prevent the issue from occurring, run the following command for every filesystem: tune2fs -i 0 <file system> Following is a list of file systems (replace '1' with the relevant slot number if the active slot is not 1): /dev/vg-db-vda/set.1.root /dev/mapper/vg--db--vda-set.1._var /dev/mapper/vg--db--vda-set.1._usr /dev/mapper/vg--db--vda-set.1._config /dev/mapper/vg--db--vda-dat.share /dev/mapper/vg--db--vda-dat.log /dev/mapper/vg--db--vda-dat.appdata

Fix Information

FSCK is disabled BIG-IP Virtual Edition (VE) for both cloud and hypervisor configurations, so this issue no longer occurs. Note: Disabling FSCK in virtual machines is considered standard operating procedure. In BIG-IP VE, FSCK is disabled upon the image creation and during live install of the full ISO. It is disabled for all file systems on all slots (boot locations). Although it is not recommended, you can manually reenable FSCK in Linux, in particular, using tune2fs to set the FSCK schedule, and updating /etc/fstab to allow it.

Behavior Change

FSCK is now disabled in BIG-IP Virtual Edition (VE) for both cloud and hypervisor, preventing failure during bootup. FSCK disablement also persists during a downgrade. F5 Networks does not recommend reenabling FSCK. However, you can reenable it in Linux by updating /etc/fstab, so you can use tune2fs to set the FSCK schedule.

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips