FSTAB: A Science and an Art? Your Craft HERE!

marin_linuxer · 2003-10-22 04:05:39

Hi All,

As part of my on-going learning courses, here, I ask you to please cut/paste your 'etc/fstab' entries into a reply(if they differ at all from the Arch defaults) for the benefit of all us nOOb's who are looking to further our understanding of the various ways to configure this all-important file.

Of particular interest to me is how you support any of your usb connected devices(hard-drives, card-reader's, digital cameras, and other eccentric hardware). Please post any comments to help explain how you achieved success with difficult devices. However, uncommented plain 'ol fstab entries are great, too.

Here's one of my current one's and Thanx from all us nOOb's for your time(!):

$ cat /etc/fstab

/dev/discs/disc0/part3 / reiserfs defaults 0 0

/dev/discs/disc0/part2 swap swap defaults 0 0

none /proc proc defaults 0 0

none /dev/shm tmpfs defaults 0 0

none /proc/bus/usb usbfs defaults 0 0

tmpfs /tmp tmpfs size=2G,nr_inodes=10k 0 0

/dev/discs/disc0/part1 /mnt/windows auto umask=0 0 0

/dev/cdroms/cdrom0 /mnt/cdrom supermount dev=/dev/cdroms/cdrom0,--,user,exec,dev,suid,noauto,unhide 0 0

/dev/floppy/0 /mnt/floppy supermount dev=/dev/floppy/0,--,user,exec,dev,suid,noauto,umask=0 0 0

$

rasat · 2003-10-22 06:36:47

marin_linuxer wrote:

Of particular interest to me is how you support any of your usb connected devices(hard-drives, card-reader's, digital cameras, and other eccentric hardware).

Please read this topic, it may help:
http://bbs.archlinux.org/viewtopic.php?t=1452

Jagged · 2003-10-22 16:37:57

#/ect/fstab
/dev/cdroms/cdrom0     /mnt/cd   iso9660   ro,user,noauto,unhide  0      0
/dev/cdroms/cdrom0     /mnt/dvd  udf       ro,user,noauto,unhide  0      0
/dev/floppy/0          /mnt/fl   vfat      user,noauto,unhide     0      0
none                   /proc     proc      defaults               0      0
none                   /dev/shm  tmpfs     defaults               0      0
/dev/md/0               /       reiserfs        defaults        0       0
/dev/md/1               /usr    reiserfs        defaults        0       0
/dev/md/2               /home   reiserfs        defaults        0       0
/dev/discs/disc0/part1  /boot   ext2            noauto          0       0
/dev/discs/disc1/part1  swap    swap            defaults        0       0
#EOF

linux software raid-0 on md/0 and md/1, software linear raid on md/2

#df -h output
Filesystem            Size  Used Avail Use% Mounted on
/dev/md/0              19G  554M   19G   3% /
none                  252M     0  252M   0% /dev/shm
/dev/md/1              38G  1.4G   36G   4% /usr
/dev/md/2              56G  4.3G   52G   8% /home

here's my raid setup

#/etc/raidtab
raiddev /dev/md0
        raid-level              0
        nr-raid-disks           2
        persistent-superblock   1
        chunk-size              4

        device                  /dev/hda2
        raid-disk               0
        device                  /dev/hdb2
        raid-disk               1

raiddev /dev/md1
        raid-level              0
        nr-raid-disks           2
        persistent-superblock   1
        chunk-size              4

        device                  /dev/hda3
        raid-disk               0
        device                  /dev/hdb3
        raid-disk               1

raiddev /dev/md2
        raid-level              linear
        nr-raid-disks           2
        persistent-superblock   1
        chunk-size              32

        device                  /dev/hda4
        raid-disk               0
        device                  /dev/hdb4
        raid-disk               1
#EOF

http://bbs.archlinux.org/viewtopic.php?t=1456 go there if you want to read about installing archlinux on a software raid

jlvsimoes · 2003-10-22 23:58:38

#
# /etc/fstab: static file system information
#
# <file system> <dir> <type> <options> <dump> <pass>

/dev/discs/disc1/part1 /boot reiserfs defaults 0 0
/dev/discs/disc1/part3 / reiserfs defaults 0 0
/dev/discs/disc1/part2 swap swap defaults 0 0
/dev/discs/disc0/part1 /mnt/win vfat rw,user,noauto,unhide 0 0
/dev/discs/disc0/part2 /home reiserfs defaults 0 0
/dev/cdroms/cdrom1 /mnt/cdrw auto ro,user,noauto,unhide 0 0
/dev/cdroms/cdrom0 /mnt/idedvd auto ro,user,noauto,unhide 0 0
/dev/fd0 /mnt/floppy vfat noauto,rw,user,unhide 0 0
none /proc proc defaults 0 0
none /dev/shm tmpfs defaults 0 0
tmpfs /tmp tmpfs defaults 0 0
none /proc/bus/usb usbfs defaults 0 0
none /dev/pts/ devpts defaults 0 0
#/dev/scsi/host0/bus0/target1/lun0/cd /mnt/cdrw auto ro,noauto,user,exec 0 0
/dev/scsi/host0/bus0/target0/lun0/cd /mnt/dvd auto ro,noauto,user,exec 0 0

contrasutra · 2003-10-23 00:03:17

#
# /etc/fstab: static file system information
#
# <file system> <dir> <type> <options> <dump> <pass>
#/dev/#EXT2FS_BOOT# /boot ext2 defaults 0 1
#/dev/#REISERFS_ROOT# / reiserfs defaults 0 0
#/dev/#EXT2FS_ROOT# / ext2 defaults 0 1
#/dev/#SWAP# swap swap defaults 0 0
/dev/hda7 /home reiserfs defaults 0 0
#/dev/#EXT2FS_HOME# /home ext2 defaults 0 2
/dev/cdroms/cdrom0 /mnt/cd iso9660 ro,user,noauto,unhide 0 0
/dev/cdroms/cdrom1 /mnt/dvd udf ro,user,noauto,unhide 0
/dev/cdroms/cdrom1 /mnt/cdrecorder auto ro,noauto,user,exec 0 0
/dev/scd0 /mnt/cdrecorder auto ro,noauto,user,exec 0 0
/dev/floppy/0 /mnt/fl vfat user,noauto,unhide 0 0
none /proc proc defaults 0 0
none /dev/shm tmpfs defaults 0 0
tmpfs /tmp tmpfs size=2G,nr_inodes=10k 0 0
none /dev/pts devpts defaults 0 0
/dev/discs/disc0/part5 /mnt/windows ntfs ro,umask=0222 0 0
#/dev/discs/disc0/part6 /rams ntfs ro,umask=0222 0 0
/dev/discs/disc0/part4 /mnt/winlin vfat rw,defaults,umask=000 0 0
/dev/discs/disc0/part8 swap swap defaults 0 0
/dev/discs/disc0/part3 / reiserfs defaults 0 0
/dev/discs/disc0/part6 /mnt/wprograms ntfs ro,umask=0222 0 0
/dev/discs/disc0/part1 /mnt/wswap ntfs ro,umask=0222 0 0

marin_linuxer · 2004-02-01 19:12:33

Hi, I notice that some of you posted fstab _with_ /dev/pts entries and some _without_ /dev/pts.

Also, most seem to be mounting tmpfs both on /dev/shm and /tmp.

Could someone please explain the benefits of using /dev/pts versus not and also why tmpfs needs to be mounted in two places. The man pages on tmpfs are a little vague about the this and the dev/pts is just not terribly clear in its' uses either.

Thanx !!

Thikasabrik · 2004-02-23 19:27:35

tmpfs is mounted on /dev/shm because this is expected by various progs (i think). This is normal anyway. It is also mounted on /tmp because this means this folder will not consume your hdd and will loose its contents on power-down. Which is good.

This does, however, require a fairly large swap file to avoid running out of room in /tmp, since tmpfs provides shared memory using ram and swap. I discovered this while extracting the kernel sources with a 500mb swap - I was confused as to why I ran out of memory... so now I only have it mounted on /dev/shm.

Btw, if anyone knows why the /dev/shm tmpfs has a 'device' of 'none' rather than 'tmpfs' like /tmp, I'd be interested to know.

i3839 · 2004-02-24 14:02:55

With a 2.4 kernel devfs will mount /dev/pts automatically, in 2.6 devfs is stripped down and won't do that anymore, so you need to add it to fstab. /dev/pts is used for Unix98 pseudo terminal support (yes, you want that).

/dev/shm is used for shared memory, so it's not really a filesystem, it's only implemented with tmpfs. Some programs may need it, and it won't hurt to have.

I wouldn't mount /tmp on a tmpfs filesystem, it has not much advantages, and if some program puts a very big file there you could get memory problems (e.g. Mozilla downloading files to /tmp first and only moving them to the right place when the download is finished). If you want an empty /tmp then you can add 'rm -rf /tmp/*' to an init script.

Arch Linux

#1 2003-10-22 04:05:39

FSTAB: A Science and an Art? Your Craft HERE!

#2 2003-10-22 06:36:47

Re: FSTAB: A Science and an Art? Your Craft HERE!

#3 2003-10-22 16:37:57

Re: FSTAB: A Science and an Art? Your Craft HERE!

#4 2003-10-22 23:58:38

Re: FSTAB: A Science and an Art? Your Craft HERE!

#5 2003-10-23 00:03:17

Re: FSTAB: A Science and an Art? Your Craft HERE!

#6 2004-02-01 19:12:33

Re: FSTAB: A Science and an Art? Your Craft HERE!

#7 2004-02-23 19:27:35

Re: FSTAB: A Science and an Art? Your Craft HERE!

#8 2004-02-24 14:02:55

Re: FSTAB: A Science and an Art? Your Craft HERE!

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