Hi Andreas,
Sounds like a good idea to put the entire "/home/user" folder into a tmpfs but I have no idea how to get my data copied into this tmpfs prior to the system wanting to use it. Any idea?
Ingo
On Fri, Jun 11, 2010 at 11:03 AM, Ingo Scherzinger
ingo@miamiwave.comwrote:
If the file's contents have to be preserved between sessions, it's breaking the "read only system" paradigm. (You may still be able to use an usb drive for this purpose?)
It's actually working fine writing edited data to the rw sda3 partition where some folders have been linked to.
If the file can be recreated with the same content at each startup, i'd think about how to trick it to be on a temporary writable filesystem. I suppose we cannot change the default path for this file, and i'm not sure if you can a have link in your read only filesystem (/home/ingo) pointing to a yet-to-be-created file on a temporary filesystem, but given the annoyance factor of the problem, it may make sense to trick your whole /home/ingo onto a temporary filesystem (from where of course you will be free to create links to directories that reside on the read-only filesystem).
Andras
I tried that already. I was mounting the entire /home/ingo folder to a tmpfs. That way I didn't have all files I needed available. All system settings seemd to be gone. After getting the data partition to auto mount -rw I made a link to the .ICEauthority file. Didn't help. Maybe mounting drives comes later in the upstart order. I should check that out.
Ingo
Well, when you mount your whole home to a tmpfs you have to copy all those needed files and system settings on it, and if you can, you have to save
them back >to permanent storage before shutdown.
Automounting drives from fstab may happen sooner or later during startup,
but the >system is surely capable of mounting and temp-filesystems from the moment the >kernel is alive, and you can make things happen at a given moment in the boot >order by adding it to the right place in /etc/init.d/
Andras
Well, this is beyond my current knowledge... but basically /etc/init.d is where you make things happen at startup, and with the numbers leading filenames there (take a look...) you can have control when your script will be executed. I'd suggest take a look into those scripts and try to insert your script, and google runlevels if you want to be sure when your script would be executed. I suppose basically everything in /etc/int.d goes off before anything (normally) happens to your home directory.
Andras
On Sat, Jun 12, 2010 at 5:48 PM, Ingo Scherzinger ingo@miamiwave.comwrote:
Hi Andreas,
Sounds like a good idea to put the entire "/home/user" folder into a tmpfs but I have no idea how to get my data copied into this tmpfs prior to the system wanting to use it. Any idea?
Ingo
On Fri, Jun 11, 2010 at 11:03 AM, Ingo Scherzinger
ingo@miamiwave.comwrote:
If the file's contents have to be preserved between sessions, it's breaking the "read only system" paradigm. (You may still be able to use an usb drive for this purpose?)
It's actually working fine writing edited data to the rw sda3 partition where some folders have been linked to.
If the file can be recreated with the same content at each startup, i'd think about how to trick it to be on a temporary writable filesystem. I suppose we cannot change the default path for this file, and i'm not sure if you can a have link in your read only filesystem (/home/ingo) pointing to a yet-to-be-created file on a temporary filesystem, but given the annoyance factor of the problem, it may make sense to trick your whole /home/ingo onto a temporary filesystem (from where of course you will be free to create links to directories that reside on the read-only filesystem).
Andras
I tried that already. I was mounting the entire /home/ingo folder to a tmpfs. That way I didn't have all files I needed available. All system settings seemd to be gone. After getting the data partition to auto mount -rw I made a link to the .ICEauthority file. Didn't help. Maybe mounting drives comes later in the upstart order. I should check that out.
Ingo
Well, when you mount your whole home to a tmpfs you have to copy all those needed files and system settings on it, and if you can, you have to save
them back >to permanent storage before shutdown.
Automounting drives from fstab may happen sooner or later during startup,
but the >system is surely capable of mounting and temp-filesystems from the moment the >kernel is alive, and you can make things happen at a given moment in the boot >order by adding it to the right place in /etc/init.d/
Andras
On Jun 14, 2010, at 12:21 AM, András Murányi wrote:
I suppose basically everything in /etc/int.d goes off before anything (normally) happens to your home directory.
Andras
The newer Ubuntu's are using Upstart, so things should go in /etc/event.d: http://www.linux.com/archive/feature/125977
Dan Wilcox danomatika.com robotcowboy.com
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András Murányi -
Dan Wilcox -
Ingo Scherzinger