wastemem script

michael779

Copying and pasting the wastemem script is taking more time than I'd like.

running this:

gcc -o lab_wastemem lab_wastemem.c

results in

c1: fatal error: lab_wastemem.c: No such file or directory

Thanks for assistance.

vipopescu

Hi Michael,

You are most likely trying to compile lab_wastemem.c in the wrong directory. Try to find the absolute path of the file, that may help you:

gcc -o lab_wastemem /home/youruser/Downloads/LFS207/SOLUTIONS/s_17/lab_wastemem.c

Reagrds,
Vlad

coop

Thanks @vipopescu. In fact as you scroll down to the solution you will also see s_17/lab_waste.sh. Which will do the compile for you although it is so simple it adds little. Make sure you understand the "RESOURCES" and "SOLUTIONS" tar balls that are mentioned in the introduction. You will need to use them again when you get to the virtualization labs for example. You definitely were not meant to cut and paste the source for the lab. Very error-prone.

michael779

Thanks guys! I figured out my mistake. You're right @vipopescu, I was simply in the wrong directory!

sriramvassuthev

problem see SOLUTIONS/s_16/lab_wastemem.ch
problem see SOLUTIONS/s_16/lab_waste.sh

above given lab link was is not valid link could please share valid script .sh ?

luisviveropena

Hi @sriramvassuthev,

I just downloaded the "solutions" file and extracted it. Once you have extracted the .tar.xz file, you will find the files here:

LFS207/SOLUTIONS/s_16/

Perhaps you missed the LFS207 directory.

Regards,
Luis.

sriramvassuthev

Yes Correct I missed the that file Yeah i got in from this below link.

https://prep.lf.training/?course=LFS207

Regards,
Sriramvassuthev

luisviveropena

Hi Sriramvassuthev,

I'm glad that the issue is solved.

Regards,
Luis.

sriramvassuthev

Hello Luisviveropena,

Yes. It Resolve.

When I saw the Script. where lab_waste.sh is integrated with lab_wastemem.ch.

When I Learning this Chapter -21. Filesystem Features: Attributes, Creating, Checking, Usage, Mounting -> Mounting Filesystems (Lesson).

Each filesystem is mounted under a specific directory, as in the following command:

$ mount -t ext /dev/sdb4 /home

• Mounts an ext4 filesystem
• Usually not necessary to specify the type with the -t option
• The filesystem is located on a specific partition of a hard drive (/dev/sdb4)
• The filesystem is mounted at the position /home in the current directory tree
• Any files residing in the original /home directory are hidden until the partition is unmounted

In this , instead of ext have to user ext4 in the command.

Thanks & Regards,
Sriram Vassuthev.S

luisviveropena

Hi @sriramvassuthev, I'm glad that the original issue was solved

Regarding the second thing:

Usually not necessary to specify the type with the -t option

Yep, that's right, the OS will try to auto detect it. But also it's not wrong, and in some cases it can be useful, if the OS don't recognize the filesystem type. From the man page for 'mount':

If no -t option is given, or if the auto type is specified, mount will try to guess the desired type. Mount uses the blkid or volume_id library for guessing the filesystem type; if that does not turn up anything that looks familiar, mount will try to read the file /etc/filesystems, or, if that does not exist, /proc/filesystems. All of the filesystem types listed there will be tried, except for those that are labeled "nodev" (e.g., devpts, proc and nfs). If /etc/filesystems ends in a line with a single * only, mount will read /proc/filesystems afterwards.

Regards,
Luis.

sriramvassuthev

Hi @Luis,

I am clear.

By Blank, i am asking below question.

is there filesystem type easily to adopt with different machine and different OS can easily understand mount into system and do process as per user request or Machine request?

Like Common to all OS. Instruction will be different for each OS.

is there any tool to backup only Meta Data Information of System ?

Regards,
Sriram Vassuthev.S

luisviveropena

Hi @sriramvassuthev,

is there filesystem type easily to adopt with different machine and different OS
can easily understand mount into system and do process as per user request or Machine request?

Can you elaborate on this, please? Do you want to access a filesystem through the network from more than one device?

Please open a new thread for this question, as it's different from the original one, which is already solved.

Regards,
Luis.

sriramvassuthev

Yes Ok. I will Open it new thread.