to find how many times my pc has been rebooted

[gsiva]

Hi,

Is there any way, to find out how many time my system has been rebooted till now.

[Lakshmipathi]

I'm not sure about any specific commands.
Hint: check your /var/log/messages . (and also any archived messages file) using grep to extract info. "Freeing initrd memory" or some other unique booting message and count it.
Mostly likely that will give you the answer.

HTH

[gsiva]

Hi,

During the mean time, I did a search and find out with the command tune2fs, with the option as -l

#tune2fs -l /dev/hda4

Note: /dev/hda4 may be any partition, but / partition is fine to go with .

Result:

Mount count: 4

I am not sure, whether is could be the exact one, but this is also one way to find out.

[Lakshmipathi]

Solution from ext3-user mail list;
mount count value will reset back to 0 when it reaches maximum mount count,set for automatic
execution of e2fsck .
so use the last command,

last reboot

HTH

[blinky]

This might help, probably won't:

smartctl --all /dev/sda

It gives Power_Cycle_Count and Start_Stop_Count for the harddisk, which IF the system only runs Linux and the disk was installed when you installed linux should give a reasonaly accurate idea on number of soft-reboots and hard (power cycle reboots)

on mine I get (the systems only ever run linux and was a new build):

4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 354
12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 356

Other than that can't think of anything else.

[flakblas]

This might help, probably won't:

smartctl --all /dev/sda

You're dead on. I was about to say the same thing! Just check the power on count. Of course if smart monitoring was disabled on the drive then I guess it might not work.