Ubuntu – How to mount an AFS filesystem

10.10afsmount

My current method is to mount the filesystem via SSH using Nautilus's graphical interface, but I would much prefer to be able to use some tool that mounts the AFS filesystem and gives me access to AFS-specific features (permissions, etc.). I've tried installing OpenAFS via apt-get, but so far the kernel module has refused to compile. Also, assuming I get OpenAFS installed, I'm not quite sure how to actually mount the remote filesystem to, say, /media/afs or some directory.

I'm running Maverick with the 2.6.36-020636-generic kernel from http://kernel.ubuntu.com/~kernel-ppa/mainline/

Thanks for the help!

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Update: In the end, it appeared that the problem was due to using the mainline kernel. Once the Ubuntu kernel was updated to include vga_switcheroo, I tried again and installing OpenAFS via apt-get worked just fine. Running sudo service openafs-client start starts OpenAFS and mounts the AFS directory at /afs, and I use klog username to authenticate via Kerberos.

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Ubuntu – How to make noatime mounts default

The kernel used to have a config option for whether to use ATIME or RELATIME; dunno if that also included some option for NOATIME. In any case, that's gone now.

I studied util-linux as well, to see if the mount command had configurable defaults or could be modified, but it did not appear to be the case.

However, it looks like you can patch the kernel to change the default behavior. Modify ./fs/namespace.c, around lines 2334:

long do_mount(...)
...
    /* Default to relatime unless overriden */
    if (!(flags & MS_NOATIME))
            mnt_flags |= MNT_RELATIME;
...

Swap that around:

long do_mount(...)
...
    /* Default to noatime unless overriden */
    if (!(flags & MS_RELATIME))
            mnt_flags |= MNT_NOATIME;
...

And that should do it.

Ubuntu – how can I force a mount -a to run after the system boots up

One way to add your command at startup would be to add it as a cron job.

Add your command to the root cron by typing in the following line in a terminal window:

sudo crontab -e

then at the bottom of the cron add a line that reads like this:

@reboot /bin/mount -a

or if you want to add a delay of like 10 seconds to it:

@reboot /bin/bash -c 'sleep 10 && /bin/mount -a'

that should tell it to run the mount -a command as root at boot up time.

Or, you could add it to your system wide crontab by editing the following file:

/etc/crontab

and adding the following line:

@reboot root /bin/bash -c 'sleep 10 && /bin/mount -a'

Hope this helps!

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Related Solutions

Ubuntu – How to make noatime mounts default

Ubuntu – how can I force a mount -a to run after the system boots up

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