> Source: [sk106140](https://support.checkpoint.com/results/sk/sk106140)

# sk106140 - Error in dmesg file: "Kernel command line: ro  vmalloc=(value)M root=/dev/mapper/vg_splat-lv_current panic=15 console=ttyS0 ... 3 quiet"

| Property | Value |
|----------|-------|
| Solution ID | sk106140 |
| Date Created | 2015-05-26 |
| Last Modified | 2015-05-27 |
| Technical Level | General |
| Products | Security Gateway |
| Versions | R82.10, R82, R81.20 |
| OS | Gaia |

## Symptoms

- In output of the 'dmesg' command, the following line is seen: "Kernel command line: ro vmalloc=(value)M root=/dev/mapper/vg_splat-lv_current panic=15 console=ttyS0 ... 3 quiet"

## Cause

This entry is taken from the */etc/grub.conf* configuration file and dictates the parameters according to which the machine will boot in normal mode:

* ***"ro"*** Means that the root device is mounted as read only on boot.
* ***"vmalloc=(value)M"*** Specifies the amount which a contiguous memory region is allocated in the virtual address space.
* ***"root=/dev/mapper/vg_splat-lv_current"***Tells the kernel what device is to be used as the root filesystem while booting.
* ***"panic=15"*** Specifies the time in seconds that will cause the kernel to reboot if it panics.
* ***"console=ttyS0"***Specifies that the output of the console will go to ttyS0.
* ***"3"***Specifies the runlevel - multiuser with networking.
* ***"quiet"***Means that that the log messages during the boot process are disabled.

## Solution

This is normal behavior. The system is functioning as designed. The error in 'dmesg' can be disregarded.

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