[arch-general] Problems with mounting linux partition with gid
I have no problems mounting via fstab my vfat partitions with an option like 'gid=100'. However, I can't seem to get that to work with a Linux data partition. That partition is formatted ext3. I also tried 'grpid=100', to no avail. Dmsg gives me an 'Unrecognized mount option' error with these. How do I create a Linux data partition that's fully accessible to me, as user, after boot?
On Thu, June 26, 2008 17:00, Ralph Alvy wrote:
How do I create a Linux data partition that's fully accessible to me, as user, after boot?
$ sudo chgrp -R <somegroup> <directory where partition is mounted> Is that a trick question? *wondering* Dennis
On Thu, Jun 26, 2008 at 8:00 AM, Ralph Alvy
I have no problems mounting via fstab my vfat partitions with an option like 'gid=100'. However, I can't seem to get that to work with a Linux data partition. That partition is formatted ext3. I also tried 'grpid=100', to no avail. Dmsg gives me an 'Unrecognized mount option' error with these.
You can only set the gid of the vfat partition because those files don't already have a group or user id associated with them (vfat doesn't have any notion of uid/gid). The ext3 partition already has a uid/gid associated with each file, so you can't override that. The grpid option for ext2/ext3 partitions affects how newly created files get their group id (whether it comes from the process that created the file, or the group of the directory) and is an on/off thing (i.e. you don't set it to a value).
How do I create a Linux data partition that's fully accessible to me, as user, after boot?
If all the files on the partition already have a particular gid, you can just add yourself to that group. Alternatively you can change the gid of all the files (as Dennis just showed). However, remember that files often don't have group write permissions, so most likely you'll only be able to read and execute the files, and not write them (depending on their group permissions). Jared
Dennis Herbrich wrote:
On Thu, June 26, 2008 17:00, Ralph Alvy wrote:
How do I create a Linux data partition that's fully accessible to me, as user, after boot?
$ sudo chgrp -R <somegroup> <directory where partition is mounted>
Is that a trick question?
*wondering* Dennis
No trick question. After reading your reply and thinking it over, I see I was confusing things. I was used to using vfat partitions as data storage areas which needed to be mounted with gid or uid options. I failed to think about how I normally mount linux partitions and how I make my home directory accessible to me even though it lives on a partition that's mounted via root.
participants (3)
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Dennis Herbrich
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Jared Casper
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Ralph Alvy