aashee
asked on
Fstab File explaination
Hi, Can somebody please explain me below fstab file. i have some questions.
1- what is anaconda ?
2- what is /dev/disk ?
3- what is first UUID , what is 2nd UUID ?
4- what is gid ?
5- what is mode ?
#
# /etc/fstab
# Created by anaconda on Fri Jan 14 15:46:25 2011
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
UUID=d46e00c6-176a-4aae-ae
ts 1 1
UUID=8da332a1-bb7f-456f-8b
ts 1 2
UUID=5cd7b95a-8e80-4c86-92
ts 0 0
tmpfs /dev/shm tmpfs defaults 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
sysfs /sys sysfs defaults 0 0
proc /proc proc defaults 0 0
xyzisilon:/ifs/systems/hom
nodiratime 0 0
xyzisilon:/ifs/data/code /code nfs defaults,nolock,noatime,no
iratime 0 0
xyzisilon:/ifs/systems/app
nodiratime,fsc 0 0
xyzisilon:/ifs/systems/dea
lts,nolock,noatime,nodirat
xyzisilon:/ifs/jobs /jobs nfs defaults,nolock,noatime,no
0
1- what is anaconda ?
2- what is /dev/disk ?
3- what is first UUID , what is 2nd UUID ?
4- what is gid ?
5- what is mode ?
#
# /etc/fstab
# Created by anaconda on Fri Jan 14 15:46:25 2011
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
UUID=d46e00c6-176a-4aae-ae
ts 1 1
UUID=8da332a1-bb7f-456f-8b
ts 1 2
UUID=5cd7b95a-8e80-4c86-92
ts 0 0
tmpfs /dev/shm tmpfs defaults 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
sysfs /sys sysfs defaults 0 0
proc /proc proc defaults 0 0
xyzisilon:/ifs/systems/hom
nodiratime 0 0
xyzisilon:/ifs/data/code /code nfs defaults,nolock,noatime,no
iratime 0 0
xyzisilon:/ifs/systems/app
nodiratime,fsc 0 0
xyzisilon:/ifs/systems/dea
lts,nolock,noatime,nodirat
xyzisilon:/ifs/jobs /jobs nfs defaults,nolock,noatime,no
0
source/device mount_point filesystem_type options boot_order fsck
UUID= deals with identifying the LVM volume based on UUID (seen lvdisplay) as /, /tmp and swap partitions.
NFS (networked Filesystem)
remoteserver:/share
The options in the nfs mount point nolock (do not use lock mechanism), noatime do not update access time, nodiratime do not update directory for access time.
The link RobertParten is very informative.
ASKER
Yes RobertParten link is very very useful.
i've got much deeper understand after reading that link
what is LVM volume based on UUID ? what is lvdisplay
what is lock mechanism?
what does mean by do not update directory for access time ?
what does this UUID represent and where does it calculates its value from ?UUID=d46e00c6-176a-4aae-a
you guys are so helpful
i've got much deeper understand after reading that link
what is LVM volume based on UUID ? what is lvdisplay
what is lock mechanism?
what does mean by do not update directory for access time ?
what does this UUID represent and where does it calculates its value from ?UUID=d46e00c6-176a-4aae-a
you guys are so helpful
Ahh young grasshopper, this conversation could go on and on forever.
http://tldp.org/LDP/intro-linux/intro-linux.pdf
Is a GREAT read for learning about Linux. Take your time and read. Ask questions carefully. A good place to get help sometimes for small questions will be IRC (Internet Relay Chat).
I recommend downloading and IRC client and log onto the FREENODE network
irc.freenode.net
Register your nick name and join into the channel of OS you are using and you can ask small questions in real time.
http://tldp.org/LDP/intro-linux/intro-linux.pdf
Is a GREAT read for learning about Linux. Take your time and read. Ask questions carefully. A good place to get help sometimes for small questions will be IRC (Internet Relay Chat).
I recommend downloading and IRC client and log onto the FREENODE network
irc.freenode.net
Register your nick name and join into the channel of OS you are using and you can ask small questions in real time.
ASKER CERTIFIED SOLUTION
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ASKER
when i type lvdisplay,
it says No volume groups found .
it says No volume groups found .
http://liquidat.wordpress.com/2007/10/15/short-tip-get-uuid-of-hard-disks/
Thought the UUID was from the LVM, but it was from the drive itself.
ls -l /dev/disk/by-uuid
Thought the UUID was from the LVM, but it was from the drive itself.
ls -l /dev/disk/by-uuid
ASKER
i want to close it by myself
http://www.tuxfiles.org/linuxhelp/fstab.html
Read that and if you have any other questions I would not mind helping you out.