Odd mount point for a data drive

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crazysquirrel
Posts: 100
Joined: Thu Mar 14, 2019 5:59 pm

Odd mount point for a data drive

#1 Post by crazysquirrel »

I noticed that Mx gave one of my data drives the mount point of /dev/iso (something) but it was an actual hard drive.

I like to NEVER get that fixed
Command line refused to cooperate. It refused to unmount period.

Hade to go into XP delete it recreate the partition and format.
Did that twice.

Then used a run from flash version of linux to do the same things again with gparted.
THEN went back ito Mx and looked at things once more.

When looking at the mounting items, a popup said to delete a reference to a drive because it may cause boot problems.

So I did but the problem came right back.

Did that a few more times to no avail.

I noticed that one time the ntfs driver for those data drives said ntfs unknown. Another time it said ntfs-3g. Guess it couldn't make up it's mind?

Finally got frustrated and looked at fstab and it's backup.

Found TWO occurrences of /sdb1 in it with one of them being the problem one.
I deleted that one.

Also found noatime on both / and /home directories. I did not put them there but deleted those as well. It was put in after defaults in the line. I believe it was supposed to be before the word defaults. And shouldn't be put on the / line at all.

Saved and restarted. Things seem ok for the moment.

Oh did that benchtest with and without noatime.

Write speeds as high as 60mb/s WITH noatime. 30-42 without noatime.
Read speeds with noatime were a whopping 120mb/s
Without a paultry 60-ish mb/sec (writes got a LOT slower as the test progressed).

Did the test with 1mb, 10mb, 100mb and 1024mb.
Bigger sizes were more consistent with speeds. Until the drive gets near the end. Then both read and write drop off to 1/2.

That drive was completely empty of anything. New partition table and new blank ntfs format.

Will keep an eye on that drive for a little while.

All my other drives reported correctly.
Mx 19.2 XFCE, dual boot with XP Media Center Edition 2005, core i5, 8gb ram, WD 500GB NvMe drive (4 lanes) + other storage drives.

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sunrat
Posts: 636
Joined: Mon Mar 28, 2016 9:54 pm

Re: Odd mount point for a data drive

#2 Post by sunrat »

/dev/ contains block devices, not mount points.

You need to explain the methodology for your benchtest before it can be accepted as accurate.

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crazysquirrel
Posts: 100
Joined: Thu Mar 14, 2019 5:59 pm

Re: Odd mount point for a data drive

#3 Post by crazysquirrel »

Info stated mount point when I used other live Linux's distros.

I did manage to get the problem fixed after a lot of effort.
Mx 19.2 XFCE, dual boot with XP Media Center Edition 2005, core i5, 8gb ram, WD 500GB NvMe drive (4 lanes) + other storage drives.

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