Re: [ubuntu-uk] Fsck forced on boot up due to date problems after update

2007-10-06 Thread David Restall - System Administrator
Hi Rob,

 I've been trying to install Ubuntu 7.04 on my dad's Thinkpad R50e 
 notebook this evening with not much luck.

Snip...

 I then rebooted again, and during the reboot the machine complained 
 about not having a disk check for about 49,710 days.  It ran through the 
 disk check and rebooted, it then on the second reboot said exactly the 
 same thing.

It isn't the battery - I don't know what it is but it's much nastier
than a dead battery :-(

Doing some simple maths :-

2 ^ 32 = 4294967296
MAXINT = 4294967296 - 1 = 4294967295
4294967295 / 86400 = 49710.2696181

this is unlikely to be a battery problem.  It looks as if some routine
is not reading the date correctly and it is returning either 0 or MAXINT.
For those that haven't clicked, 4294967295 is biggest number that can be
represented in a 32 bit word and 86400 is the number of seconds in a day.
Standard UTC uses the same 32 bits, that's why we have to worry about 2038
(1970 + 49000 days).

Quite what the actual problem is, I don't know but I wouldn't be looking
at changing batteries, I'd suspect some hardware incompatibility.

Some numbers just ring funny :-)

TTFN


D
ubuntu/uk-2007-10-06.txubuntu-uk [EMAIL PROTECTED]
++
| Dave Restall, Computer Nerd, Cyclist, Radio Amateur G4FCU, Bodger  |
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++
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| whole week.|
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Re: [ubuntu-uk] Fsck forced on boot up due to date problems after update

2007-10-06 Thread MailoGroups

 Snip...
 Quite what the actual problem is, I don't know but I wouldn't be looking
 at changing batteries, I'd suspect some hardware incompatibility.
   
Have you actually replaced the hard drive?
Or at least run a decent disk checker on it (the one from Maxtor  
excellent)?

Installing a whole new OS on a flakey harddrive is a recipe for disaster.

In my experience once drive start showing back sectors they usually go 
bang pretty quickly.
40-60GB laptop drive are pretty cheap these days and most laptops have 
bays so they are easy to change.



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Re: [ubuntu-uk] Fsck forced on boot up due to date problems after update

2007-10-06 Thread Michael Holloway
On Sat, 2007-10-06 at 09:11 +0100, David Restall - System Administrator
wrote:
 Hi Rob,
 
  I've been trying to install Ubuntu 7.04 on my dad's Thinkpad R50e 
  notebook this evening with not much luck.
 
 Snip...
 
  I then rebooted again, and during the reboot the machine complained 
  about not having a disk check for about 49,710 days.  It ran through the 
  disk check and rebooted, it then on the second reboot said exactly the 
  same thing.
 
 It isn't the battery - I don't know what it is but it's much nastier
 than a dead battery :-(
 
 Doing some simple maths :-
 
 2 ^ 32 = 4294967296
 MAXINT = 4294967296 - 1 = 4294967295
 4294967295 / 86400 = 49710.2696181
 
 this is unlikely to be a battery problem.  It looks as if some routine
 is not reading the date correctly and it is returning either 0 or MAXINT.
 For those that haven't clicked, 4294967295 is biggest number that can be
 represented in a 32 bit word and 86400 is the number of seconds in a day.
 Standard UTC uses the same 32 bits, that's why we have to worry about 2038
 (1970 + 49000 days).
 
 Quite what the actual problem is, I don't know but I wouldn't be looking
 at changing batteries, I'd suspect some hardware incompatibility.
 
 Some numbers just ring funny :-)
 
 TTFN


Hi

Honestly I've installed Ubuntu countless times, mostly servers. Since
7.04 i seem to get this every time! On different machines and VMs. I
assumed this was just a lazy way of forcing a disk check after its
been installed. 

So all i do is install, apt-get upgrade, reboot, reboot... and then all
is fine after that... almost like a post install intentional mess that
sorts itself out.

Later,
Michael



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Re: [ubuntu-uk] Fsck forced on boot up due to date problems after update

2007-10-06 Thread Rob Beard
MailoGroups wrote:
 Snip...
 Quite what the actual problem is, I don't know but I wouldn't be looking
 at changing batteries, I'd suspect some hardware incompatibility.
   
 Have you actually replaced the hard drive?
 Or at least run a decent disk checker on it (the one from Maxtor  
 excellent)?
 
 Installing a whole new OS on a flakey harddrive is a recipe for disaster.
 
 In my experience once drive start showing back sectors they usually go 
 bang pretty quickly.
 40-60GB laptop drive are pretty cheap these days and most laptops have 
 bays so they are easy to change.
 
It's a brand new Seagate Momentus 54200 2.5 Hard Drive, the old drive 
was faulty hence putting in this new one.

I will check the drive when my dad is back from holiday.

Rob



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Re: [ubuntu-uk] Fsck forced on boot up due to date problems after update

2007-10-06 Thread Rob Beard
Michael Holloway wrote:

 
 Hi
 
 Honestly I've installed Ubuntu countless times, mostly servers. Since
 7.04 i seem to get this every time! On different machines and VMs. I
 assumed this was just a lazy way of forcing a disk check after its
 been installed. 
 
 So all i do is install, apt-get upgrade, reboot, reboot... and then all
 is fine after that... almost like a post install intentional mess that
 sorts itself out.
 
 Later,
 Michael
 

Ahh I'm glad I'm not the only one experiencing the problem.

I'm hoping that 7.10 won't have any issues like this.  I must admit 7.10 
Beta looks okay.

Rob

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Re: [ubuntu-uk] Fsck forced on boot up due to date problems after update

2007-10-05 Thread Farran Lee
Hi Rob
just had that happen with my laptop.
Inside is a tiny battery that powers the BIOS memory (or something). My
laptop is awfully old, and the battery has finally gone flat. This means
that every time my laptop is disconnected from the mains, it forgets all
the settings I have made in the BIOS. It complains at me a lot, but I
have got round it.
The BIOS (as far as I am aware - I'm only 14, so don't quote me on this)
manages the system clock as well - consequently, it forgets the time and
date. Now, when I boot up, it complains that it has not had a system
check for several thousand days (last time I worked it out, it was over
316 years). This obviously cannot be the case! When an error is found on
the hd and the fsck reaches the end, it normally says something like
this to me: Errors found on hda1! Linux is going down for reboot in 5!
My guess is that all that needs to be done is to replace the battery. It
is only a tiny round [lithium-ion?] battery.
Hope this helped... as I said, I'm only 14, so I could be talking a load
of rubbish... :P
Farran

On Fri, 2007-10-05 at 21:34 +0100, Rob Beard wrote:
 Hi folks,
 
 I've been trying to install Ubuntu 7.04 on my dad's Thinkpad R50e 
 notebook this evening with not much luck.
 
 Basically my dad's had his laptop for a year and the hard drive 
 developed bad sectors just after the warranty ran out.  To complicate 
 things further, the installation files were on the hard disk itself 
 (good old Microsoft!).  Now I have got a set of install disks for the 
 laptop (my other half has exactly the same laptop) but I can't find 
 them, so to get my dad up and running again I decided to install Ubuntu 
 (okay, I'm hoping he moves over to Ubuntu).
 
 Now this is where the problem starts.  I've installed Ubuntu 7.04 from a 
 Desktop CD, it all appears to install okay, I've partitioned the drive 
 as follows:
 
 / 20GB Ext3
 /home 99GB Ext3
 swap  1GB Swap
 
 I rebooted the machine after the install, so far so good.  Everything 
 booted up fine.  I then went to install the updates (about 126 updates), 
 again these installed fine.
 
 I then rebooted again, and during the reboot the machine complained 
 about not having a disk check for about 49,710 days.  It ran through the 
 disk check and rebooted, it then on the second reboot said exactly the 
 same thing.
 
 I checked the date and time, all were fine, I then reinstalled again.
 
 On the second reinstall it did exactly the same as before, reporting 
 that the disk hadn't been checked for over 49,000 days, after the forced 
 fsck it rebooted and then appeared to boot okay.
 
 I'm going to try Ubuntu 7.10 Beta, my dad goes away this weekend for a 
 week and I needed to get his machine working.  When he's back hopefully 
 I'll be able to put the full release of 7.10 on the laptop (along with 
 Windows if he really really wants it).
 
 Just wondered though if anyone else had seen this problem?
 
 Ta,
 
 Rob
 


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Re: [ubuntu-uk] Fsck forced on boot up due to date problems after update

2007-10-05 Thread Chris Rowson
 Inside is a tiny battery that powers the BIOS memory (or something). My
 laptop is awfully old, and the battery has finally gone flat. This means
 that every time my laptop is disconnected from the mains, it forgets all
 the settings I have made in the BIOS. It complains at me a lot,

Sounds like it's worth looking at :-) I'm guessing that if Rob keeps
his laptop plugged into the mains and restarts it then it shouldn't
fsck if that's the problem then?

 Hope this helped... as I said, I'm only 14, so I could be talking a load
 of rubbish... :P

Meh, doesn't matter how old you are mate ;-)

Chris

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Re: [ubuntu-uk] Fsck forced on boot up due to date problems after update

2007-10-05 Thread Rob Beard
Farran Lee wrote:
 Hi Rob
 just had that happen with my laptop.
 Inside is a tiny battery that powers the BIOS memory (or something). My
 laptop is awfully old, and the battery has finally gone flat. This means
 that every time my laptop is disconnected from the mains, it forgets all
 the settings I have made in the BIOS. It complains at me a lot, but I
 have got round it.
 The BIOS (as far as I am aware - I'm only 14, so don't quote me on this)
 manages the system clock as well - consequently, it forgets the time and
 date. Now, when I boot up, it complains that it has not had a system
 check for several thousand days (last time I worked it out, it was over
 316 years). This obviously cannot be the case! When an error is found on
 the hd and the fsck reaches the end, it normally says something like
 this to me: Errors found on hda1! Linux is going down for reboot in 5!
 My guess is that all that needs to be done is to replace the battery. It
 is only a tiny round [lithium-ion?] battery.
 Hope this helped... as I said, I'm only 14, so I could be talking a load
 of rubbish... :P
 Farran
 

Hi Farran,

Thanks for the suggestion, the battery is fine, it also was running on 
the mains.  The amount of days in question (over 49,700) works out at 
about 163 years, and it said the date was in the future!  (so much for 
the Millenium bug!)

Funny you should mention your age, I first found out about the BIOS 
batteries when I was about 13/14 when I first started learning about the 
hardware side of PCs - I put a password on the BIOS of my dad's PC and 
forgot the password, luckily the technician at my school at the time 
told me how to clear the CMOS :-)

I've installed 7.10 Beta now, I'm actually quite impressed with it apart 
from having to jump through a load of hurdles to get DVD playback 
working (I'm sure it was easier under 7.04 after adding the Medibuntu 
repos).

At least my dad's laptop is working now anyway.  When he gets back from 
his holiday I'll try and do a fresh install of the full version of 
Ubuntu 7.10.

Rob


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