installing from USB (again)

altern altern2 at gmail.com
Mon Aug 25 18:37:34 BST 2008


Luis de Bethencourt(e)k dio:
> On 8/23/08, altern <altern2 at gmail.com> wrote:
>> Andrew Hunter(e)k dio:
>>  > -----BEGIN PGP SIGNED MESSAGE-----
>>  > Hash: SHA1
>>  >
>>  > Hey altern,
>>  >
>>  > altern wrote:
>>  >> Andrew Hunter(e)k dio:
>>  >>> -----BEGIN PGP SIGNED MESSAGE-----
>>  >>> Hash: SHA1
>>  >>>
>>  >>> altern wrote:
>>  > [...]
>>  >> At the bottom of the web page i am following it says that
>>  >> when using the alternate CD installer one needs to setup the cddrive
>>  >> the section is called "Mounting the USB stick as /cdrom". This are the
>>  >> commands to do it, one needs to open a new console with ALT+1 after
>>  >> choosing installation language
>>  >>
>>  >> # mkdir /cdrom /dev/cdroms
>>  >> # cd /dev/cdroms
>>  >> # ln -s ../sda1 cdrom0
>>  >> # mount -t vfat /dev/cdroms/cdrom0 /cdrom
>>  >>
>>  >> I tried following those tips but still it does not find the cdrom. My
>>  >> usb drive shows up as sdb1, i checked read that from dmesg.
>>  >
>>  > Are you substituting that value where appropriate in the guide?
>>
>>
>> as far as i understand i am doing it ok. I checked with dmesg that my
>>  Kingston USB stick was sdb, then checked which devices were available at
>>  /dev and there it was /dev/sdb1
>>
>>  i noticed that after i do
>>
>> mount -t vfat /dev/cdroms/cdrom0 /cdrom
>>
>> the installer goes funny and it cannot read the usb drive any more. I
>>  mean, before the problem is that it cannot autodetect the cdrom drive
>>  but it reads the content of the usb drive with no problems, as soon as i
>>  mount the usb drive on /cdrom the installer cannot read the content of
>>  the drive any more, it is like if i had removed it.
>>
>>  I also tried few other options like doing directly
>>  mount -t vfat /dev/sdb1 /cdrom
>>
>>  same problem. i might be doing something stupid because i cannot see
>>  anyone else complaning online about same error... but i cannot see what
>>  it might be. I checked few times and as far as i can see i am doing all ok.
>>
>>  enrike
>>
>>
>>
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> 
> The commands you are pasting here make no sense to me. You are
> creating a link from the usb drive to the usual place of the cdrom
> drive, and then trying to mount that. The usb drive is already mounted
> (you are using it to run the system). You cant mount twice a drive but
> since you are doing it through the link the system might get confused.

> What you need to do is create a link from the mounted point of the pendrive
> check it with "df" and make /cdrom be a link to that.

"df" says that FILESYSTEM TMPFS and MOUNTED ON /DEV
sorry i am not very good at this technical details, I dont understand 
what i have to do, should I create a link to /dev somwhere like say 
/mnt/cdrom0 and then set /cdrom to point to it? is this right?

> Btw, I thought ubuntu mounted cdroms in /media/ so check that guide is
> doing things the Ubuntu way. I might be wrong but I don't have time to
> check right now.

funny because i took it from help.ubuntu.com so it should be very
ubuntu-like.
The docs are here, the section called "Mounting the USB stick as /cdrom"
https://help.ubuntu.com/community/Installation/FromUSBStick

enrike






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