[arch-general] After the recent linux kernel update booting fails if usb disks are present in /etc/fstab

[Hector Martinez-Seara]

Hi,
Which information exactly do you need? I can provide you any
information you may require if you explain me how to gather it (I'm
not as good as most of you).

Regarding testing. I don't want to use testing in this computer as it
has some sensitive data.

Regarding non mounting at boot it is rather not a good option. First,
I like my disks to be check up periodically, this is fairly well done
at boot. Second, This is a file server besides a desktop, so not
always kde/gnome... are in use. I really think it is redundant to have
to use another tool than fstab to mount disks only for the seek of
speeding up the boot process.

I really don't see the point of speeding the things up if they make
everything else unstable. I honestly think that we are trying to build
a house starting from the roof. First stability and then if possible
speed.
Hector

On 6 June 2011 13:13, Tom Gundersen <teg at jklm.no> wrote:
> On Mon, Jun 6, 2011 at 10:37 AM, Hector Martinez-Seara <hseara at gmail.com> wrote:
>> t 4 days I've been again experiencing problems with my usb
>> disks at boot. Right now it is not as bad as before,  it fails around
>> 75% of the boots which is still unacceptable. The problem was totally
>> solved with udev-168-2. But at some point, currently  udev-171-1,  the
>> problem was back. Sorry I can not be more precise as I don't boot the
>> system every day. Has been any changes again in this respect?
>
> We have been speeding up boot with the recent udev releases, so any
> race conditions will be more pronounced than before. There might of
> course be a bug in udev which is not just a race, but then I would
> need more info (like which exact version breaks for you, and maybe
> have a try with [testing], as there is lots of news stuff there).
>
> As I said before:
>
> "That said, there is a fundamental problem with usb drives, so we
> cannot reliably mount them at boot (it probably will work in practice
> though). The problem is that there is no way to know when all usb
> devices have been enumerated (even if the drivers are loaded), so we
> don't know how long to wait before trying to mount them.
>
> This is the kind of problems solved by systemd (in community), and it
> is out of scope for the standard sysvinit initscripts (unless there is
> a solution that I am not aware of)."
>
> Another option, if usb is not actually needed for booting (as in your
> case) is to have some software do automounting when the device appears
> (KDE/GNOME can do this, I'm sure there are others too, but I'm not too
> familiar with it).
>
> HTH,
>
> Tom
>



-- 
Hector Martínez-Seara Monné
mail: hseara at gmail.com
Tel: +34656271145
Tel: +358442709253