Re: [gentoo-dev] Third try with build -r14

[Martin Schlemmer]

On Sun, 2002-01-06 at 10:45, Kevin Gordon wrote:
> Thank you Martin for a most helpful response.
>
> I had not entered in /etc/devfsd.conf "LOOKUP       ppp        MODLOAD" but
> now realise this would be necessary from 'ppp for Linux" by Paul Mackerrsa.
>

It should not be needed to do this or anything for ppp to
auto load the ppp module (as the alias is already in
modules.devfs).  I just merged the net-dialup/ppp and i havent
changed a thing (except /etc/init.d/net.ppp0) or created a
device.  Hundreds of reboots, and it still work fine.
 
> I did not cd / before umount /mnt/gentoo. Now noted.
> I am now reluctant to # reboot.
> I had not made a # umount /proc. Now noted.
>

You do not need to unmount /proc (in theory). Just unmount
/mnt/* and then do a

  mount -o remount,ro /

to remount / readonly and make sure all other *real*
filesystems (not /proc or /dev) is unmounted or mounted
readonly and reboot.

After install, you can just #reboot, as the Gentoo initscripts
will take care of the rest.

> re PROCFS & TMPFS at boot have:
> Mounting /proc
> Mounting devfs
> Mounting tmpfs
> I think this is what you asked.
>
> I have not had repeating messages on this install.
> Your advice re info required is noted.
>

great!

> RE backup of gentoo and devfs:
>
> I have written a script to backup the whole system. Get error messages:
> tar: /dev/log: socket ignored
> tar: /lib/dev-state/log: socket ignored
> tar: 3 tmp files: socket ignored
> tar: /proc/2.....to......14/exe: Cannot read link: No such file or directory
> tar: /proc/801/fd/4: Cannot stat: No such file or directory
> tar: Error exit delayed from previous errors
>
> Backed up 3.65GB to another partition..
>
> Would it be safe / ok to umount /proc before and mount after the backup?
>
> Would devfs and /proc be ok after a restore?
>

How do you backup the partition ? BTW, you do not need to
backup /dev and /proc, as these are *virtual* filesystems.
meaning, your backup'd copy should just have a empty /dev
and /proc, and no contents as the contents is created at
mounting them.

How you can do a backup with copy, is by doing:

  cp -ax / /mnt/backup

this will copy everyting but stay on the original filesystem,
and leave /dev and /proc uncopied as like I said, you do not
need to backup them.

Hope this is of some help.  Feel free to ask if I was not too
clear.


Greetings,

-- 

Martin Schlemmer
Gentoo Linux Developer, Desktop Team Developer
Cape Town, South Africa