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Closed 5 years ago.
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How to mount below fstab line with command?in case of I can't restart the server.
none /var/tmpfs tmpfs defaults,size=16g 1 2
Open up your editor and edit the /etc/fstab file
This seems to be your line to mount the partition
none /var/tmpfs tmpfs defaults,size=16g 1 2
You would normally have to reboot your Linux system, after editing this file.
There is a simple way which will remount all the partitions from your /etc/fstab file without restarting the system.
Run the following command as root
sudo mount -a
After you've done that, do a
df -lh
you should see your drives listed.
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Closed 6 years ago.
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I have problem in installing oracle DB since /tmp has no required freespace. How to increase the space of /tmp folder from terminal?
hope you have some free space in the disk. Its possible to make free space to a particular partition here its /tmp
Open the terminal and run
df -h
this will show the disk space currently you have in the system
to increase the space for the partition
type
`sudo umount /tmp`
sudo mount -t tmpfs -o size=1048576,mode=1777 overflow /tmp
this will increase the size by 1MB if you add and extra zero that is 10485760 will increase the size by 10MB. Add space upon how much you needed.
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Closed 8 years ago.
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I type df -h on linux terminal, and it shows
Filesystem Size Used Avail Use% Mounted on
/dev/sr0 3.0G 3.0G 0 100% /media/SLE-11-SP1-SDK-DVD-x86_64.02.001
How can I find the source ISO image which is mounting on /media/SLE-11-SP1-SDK-DVD-x86_64.02.001?
/dev/sr0 should correspond to a CD/DVD drive. So I assume that you want to create an iso image out of this DVD? If that is the case, you should umount the DVD:
sudo umount /media/SLE-11-SP1-SDK-DVD-x86_64.02.001
and then create your iso image like this
dd if=/dev/sr0 of=~/<whatever_name_u_want>.iso
If you actually think an iso image (and not a real DVD) is mounted on your system, try using the mount command. (And if you need more help paste its output)
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Closed 9 years ago.
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As far as I know, du or df can be used in MOUNTED partition only. I don't want to mount them, but I wanna know their usage, What command I can peek that info?
you can try
tune2fs -l /dev/sdx (your unmounted parition)
or
parted /dev/sdx print al
Untested but GNU df supports --direct. I don't have access to any linux at the moment. But give it a try.
df --direct /dev/sda2
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Closed 7 years ago.
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I'm running CentOS 6.4 in a VMWare Player virtual machine. I was trying to add two partitions to the file system. First I used fdisk to add the partitions, then mke2fs, then I mounted the partitions. Then I manually edited /etc/fstab, I added lines for the new partitions listed by blkid.
When I restarted, the OS is failing to start, it brings me to a terminal. So I tried to undo the changes I made to the /etc/fstab file, but it's saying that everything is read only, even though I am root. It won't let me remove the lines I added before to /etc/fstab.
Does anybody know how I can recover? At least how to get the stupid thing to boot again.
I think you need to remount the filesystem in rw mode:
mount -o rw,remount /
After that you can edit /etc/fstab and revert your changes, save the file and reboot.
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Closed 9 years ago.
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I am asking this question after searching a lot on Internet.
I am using linux on my PC. It has a disk which has 3 partitions. sda1, sda2, sda3. sda3 contains linux, sda2 is swap and sda1 is FAT.
My question is that "sda3" is a partition which contains whole when linux than I don't understand what do you mean by mounting it on /dev/sda3?
/home, /usr, /var everything is inside sda3 then why are we saying that we are mounting sda3 on /dev while /dev and all the other filesystems are in sda3?
/dev is a directory containing ''pointers'' (in the form of block/character special files) that give the user/programs access to special devices that only the kernel has access to normally.
sda3 isn't actually mounted on /dev/sda3, that's just the block special file that lets us manipulate sda3. The real ''mount point'' is /.
I found my answer after reading http://en.wikipedia.org/wiki/Device_file
/dev/sda3 is actually a device file.