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Re: Machine hangs at boot



SDB is ext4. It is just a disk I use for data. Under normal circumstances, when system operating normally it isn't mounted for some reason and it gets mounted when I just click on it in LXDE. I guess that's why it's not initialized

Frederic Marchal <frederic.marchal@wowtechnology.com> wrote:

>On Monday 15 December 2014 15:48:40 German wrote:
>> Oh OK, there really is such a disk. Unfortunately I can't remove it. My
>> machine was running smoothly for about two months and after kernel update
>> this thing happened.
>
>Is sdb supposed to contain a valid partition?
>
>If it is supposed to be a valid disk, then, I would say it is now corrupted…
>
>How frequently do you reboot your computer? If you reboot it infrequently and 
>just rebooted it after the kernel update, then the disk failure may have been 
>noticed only then.
>
>As the kernel driver handling that disk is a generic scsi, I doubt a kernel 
>bug affects your system.
>
>The ata driver can't be blamed here either as it is recognizing sda just fine.
>
>Now, something else may be holding the boot sequence for 26 seconds just 
>before mounting the swap partition on sda3 but you ruled out a corruption on 
>sda2. And we lack evidences that any other peripheral is behaving strangely.
>
>Frederic
>
>
>> Frederic Marchal <frederic.marchal@wowtechnology.com> wrote:
>> >On Monday 15 December 2014 15:40:23 German wrote:
>> >> Do you refer to SDB as 500GB disk?
>> >
>> >It looks so:
>> >
>> >[    2.128658] scsi 1:0:0:0: Direct-Access     ATA      ST500LM021-1KJ15
>> >0001 PQ: 0 ANSI: 5
>> >[    2.130695] sd 1:0:0:0: [sdb] 976773168 512-byte logical blocks: (500
>> >GB/465 GiB)
>> >
>> >
>> >Frederic
>> >
>> >> Frederic Marchal <frederic.marchal@wowtechnology.com> wrote:
>> >> >On Monday 15 December 2014 14:37:10 German wrote:
>> >> >> My machine hangs at boot, so i'd like someone to take a look at my
>> >> >> log.
>> >> >> Thanks
>> >> >> 
>> >> >> http://pastebin.com/3crkJgnE
>> >> >
>> >> >Let's try another wild guess.
>> >> >
>> >> >sdb looks corrupted or not initialized
>> >> >
>> >> >[    2.147780]  sdb: unknown partition table
>> >> >
>> >> >Can you unplug that 500GB disk to see if the kernel isn't chocking on a
>> >> >hardware error?
>> >> >
>> >> >Beware that it will shift sdc to sdb. Depending on the system
>> >> >configuration, it might be necessary to boot in single user/rescue mode.
>> >> >You may also want to unplug sdc to prevent it from being accessed as
>> >> >sdb.
>> >> >
>> >> >Frederic
>
>
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