Folders linked to Disk Usage analysis app following OS upgrade

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chlowden007
Posts: 50
Joined: 2020/01/29 07:42:36

Re: Folders linked to Disk Usage analysis app following OS upgrade

Post by chlowden007 » 2021/04/19 05:54:32

And to add to the injury, the root folder is now locked out and the system is stating that it is near full.

chlowden007
Posts: 50
Joined: 2020/01/29 07:42:36

Re: Folders linked to Disk Usage analysis app following OS upgrade

Post by chlowden007 » 2021/04/19 06:06:48

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ABRT has detected 49 problem(s). For more info run: abrt-cli list --since 1615976906
[root@centoslowdell admin]# abrt-cli list
id 1158cae043f131585ea914b91c97abecdd0db557
time:           Sun 18 Apr 2021 14:15:05 CEST
uid:            0 (root)
count:          1
Directory:      /var/spool/abrt/vmcore-127.0.0.1-2020-11-28-18:18:38

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[root@centoslowdell /]# ls -al
total 324
dr-xr-xr-x.  18 root root    267 Apr 19 07:25 .
dr-xr-xr-x.  18 root root    267 Apr 19 07:25 ..
drwxr-xr-x.   2 root root      6 Jan 18 21:46 adobe
lrwxrwxrwx.   1 root root      7 Nov 22 00:21 bin -> usr/bin
dr-xr-xr-x.   6 root root   4096 Apr 18 12:05 boot
drwxr-xr-x.  24 root root   4000 Apr 19 07:26 dev
drwxr-xr-x. 172 root root  12288 Apr 19 07:25 etc
drwxr-xr-x.   3 root root     19 Nov 22 15:11 home
lrwxrwxrwx.   1 root root      7 Nov 22 00:21 lib -> usr/lib
lrwxrwxrwx.   1 root root      9 Nov 22 00:21 lib64 -> usr/lib64
drwxr-xr-x.   2 root root      6 Apr 18 07:50 media
drwxr-xr-x.   3 root root     21 Nov 22 23:37 mnt
drwxr-xr-x.  11 root root    209 Apr 17 11:27 opt
dr-xr-xr-x. 355 root root      0 Apr 19 07:24 proc
-rw-r--r--.   1 root root 275408 Apr 19 07:25 .readahead
dr-xr-x---.  19 root root   4096 Apr 19 07:58 root
drwxr-xr-x.  49 root root   1540 Apr 19 07:54 run
lrwxrwxrwx.   1 root root      8 Nov 22 00:21 sbin -> usr/sbin
lrwxrwxrwx.   1 root root     19 Nov 22 22:52 snap -> /var/lib/snapd/snap
drwxr-xr-x.   2 root root      6 Apr 11  2018 srv
dr-xr-xr-x.  13 root root      0 Apr 19 07:25 sys
drwxrwxrwt.  72 root root  16384 Apr 19 08:00 tmp
drwxr-xr-x.  14 root root    166 Mar  2 10:07 usr
drwxr-xr-x.  24 root root   4096 Nov 22 22:52 var

chlowden007
Posts: 50
Joined: 2020/01/29 07:42:36

Re: Folders linked to Disk Usage analysis app following OS upgrade

Post by chlowden007 » 2021/04/19 06:11:31

When I login with KDE, dolphin opens the folders properly and the wastebasket works. But I would prefer to get GNOME back

tunk
Posts: 952
Joined: 2017/02/22 15:08:17

Re: Folders linked to Disk Usage analysis app following OS upgrade

Post by tunk » 2021/04/19 09:44:13

What's the output of df?
Don't know if it will work, when using KDE, try to rename .gnome and .mozilla in your home directory.

chlowden007
Posts: 50
Joined: 2020/01/29 07:42:36

Re: Folders linked to Disk Usage analysis app following OS upgrade

Post by chlowden007 » 2021/04/19 11:55:28

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[admin@centoslowdell ~]$ df
Filesystem              1K-blocks      Used Available Use% Mounted on
devtmpfs                 16287276         0  16287276   0% /dev
tmpfs                    16303668    246368  16057300   2% /dev/shm
tmpfs                    16303668     10084  16293584   1% /run
tmpfs                    16303668         0  16303668   0% /sys/fs/cgroup
/dev/sda4                51175000  50731252    443748 100% /
/dev/loop7                 223232    223232         0 100% /var/lib/snapd/snap/gnome-3-34-1804/60
/dev/loop1                 188544    188544         0 100% /var/lib/snapd/snap/blender/65
/dev/loop2                 100352    100352         0 100% /var/lib/snapd/snap/core/10583
/dev/loop8                 191616    191616         0 100% /var/lib/snapd/snap/blender/111
/dev/loop4                  52352     52352         0 100% /var/lib/snapd/snap/snap-store/518
/dev/loop0                  56832     56832         0 100% /var/lib/snapd/snap/core18/1944
/dev/loop3                  56832     56832         0 100% /var/lib/snapd/snap/core18/1997
/dev/loop9                  66432     66432         0 100% /var/lib/snapd/snap/gtk-common-themes/1514
/dev/loop5                 101632    101632         0 100% /var/lib/snapd/snap/core/10958
/dev/loop6                 224256    224256         0 100% /var/lib/snapd/snap/gnome-3-34-1804/66
/dev/sda2                 1038336    383348    654988  37% /boot
/dev/sda1                 1046516     11624   1034892   2% /boot/efi
/dev/mapper/centos-home 838447108 502083236 336363872  60% /home
tmpfs                     3260736        48   3260688   1% /run/user/1000
Is the goal of renaming .gnome and .mozilla to force the machine to create new default configs?
Many thanks for help.

tunk
Posts: 952
Joined: 2017/02/22 15:08:17

Re: Folders linked to Disk Usage analysis app following OS upgrade

Post by tunk » 2021/04/19 13:11:10

Your root file system is (almost) full:
/dev/sda4 51175000 50731252 443748 100% /
Look at this thread on how to find out what's using disk space:
viewtopic.php?f=54&t=77441

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jlehtone
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Location: Finland

Re: Folders linked to Disk Usage analysis app following OS upgrade

Post by jlehtone » 2021/04/19 13:15:41

chlowden007 wrote:
2021/04/19 11:55:28
Is the goal of renaming .gnome and .mozilla to force the machine to create new default configs?
Yes. I don't think that there is .gnome directory. I think that most user settings are in .config
Profiles of Firefox are in .mozilla but there is no need to recreate them unless they too have issues.
The (file) icons that you see on desktop are in directory Desktop

However, your more urgent issue is that filesystem / is full.
The home directories of regular users are in /home and that is not full.
The first thing is to find out where in / there are lot of files:

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sudo du -d 1 -mx /  | sort -n
On a CentOS 7 workstation I get this:

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$ sudo du -d 1 -mx /  | sort -n
1	/media
1	/mnt
1	/srv
48	/etc
291	/root
1001	/var
1808	/opt
10351	/usr
13497	/
Overall, that is just 14 GiB. The /usr is the largest (as I did expect), so lets look at that:

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$ sudo du -d 1 -mx /usr | sort -n
1	/usr/etc
1	/usr/games
68	/usr/sbin
92	/usr/include
138	/usr/src
275	/usr/libexec
404	/usr/bin
1440	/usr/lib
2067	/usr/share
2861	/usr/lib64
3009	/usr/local
10351	/usr
The 3 GB in /usr/local is not what one would expect, but in this case I know that it is NVidia CUDA packages.

Now it is your turn to study your system to find where and what you have.


You can immediately free some space with:

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sudo yum --enablerepo=* clean all
sudo package-cleanup --oldkernels
The latter command is from package yum-utils and uninstalls older kernels.
It will not touch the currently running kernel and leaves two latest kernels installed too.
You can also sudo yum remove kernel-3.10.0-1160.6.1.el7.x86_64 but that does not remove all packages related to the 3.10.0-1160.6.1.


PS. The list of packages that were updated was actually quite short. Point updates are much bigger (but CentOS 7 will not get any more of those).

chlowden007
Posts: 50
Joined: 2020/01/29 07:42:36

Re: Folders linked to Disk Usage analysis app following OS upgrade

Post by chlowden007 » 2021/04/19 14:56:15

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0	/adobe
0	/media
0	/mnt
0	/srv
51	/etc
4587	/root
8130	/opt
9626	/usr
12115	/var
14747	/tmp
49255	/
I presume that /tmp should be emptied every restart. I presume I can do a

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sudo rm -R /tmp/
to empty all that?

As for /var

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[admin@centoslowdell ~]$ sudo du -d 1 -mx /var  | sort -n
[sudo] password for admin: 
0	/var/account
0	/var/adm
0	/var/empty
0	/var/games
0	/var/gopher
0	/var/kerberos
0	/var/local
0	/var/nis
0	/var/opt
0	/var/preserve
0	/var/target
0	/var/www
0	/var/yp
1	/var/BlackmagicDesign
1	/var/db
1	/var/snap
73	/var/cache
145	/var/log
186	/var/tmp
1017	/var/spool
1127	/var/crash
9265	/var/lib
11812	/var
I am not so comfortable with charging in there with the rm command.

I have a feeling the 2 app suppliers below are filling up the drive

1693 /var/lib/snapd
6628 /var/lib/flatpak

but I cannot see much on the web on how to clean / manage this.
Thank you

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jlehtone
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Location: Finland

Re: Folders linked to Disk Usage analysis app following OS upgrade

Post by jlehtone » 2021/04/19 15:53:36

There is systemd-tmpfiles-clean.service that runs daily.

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man tmpfiles.d
man systemd-tmpfiles
From /usr/lib/tmpfiles.d/tmp.conf one gets impression that removing all from /tmp is not nice:

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# Clear tmp directories separately, to make them easier to override
v /tmp 1777 root root 10d
v /var/tmp 1777 root root 30d

# Exclude namespace mountpoints created with PrivateTmp=yes
x /tmp/systemd-private-%b-*
X /tmp/systemd-private-%b-*/tmp
x /var/tmp/systemd-private-%b-*
X /var/tmp/systemd-private-%b-*/tmp
You should look more carefully what /tmp contains.

rpm -qd flatpak shows lot of documentation.
flatpak list should show what flatpaks you have installed.
flatpak uninstall is probably the command that removes something.

snapd: "Snappy is a modern, cross-distribution, transactional package manager designed for working with self-contained, immutable packages."
It must have documentation.

Home directory of superuser (/root), has 4GB. I would check that. The 51 MB in configs (/etc) feels lot too (but is a "small fish").

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TrevorH
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Re: Folders linked to Disk Usage analysis app following OS upgrade

Post by TrevorH » 2021/04/19 17:42:28

Also, the default config is to have /tmp as a tmpfs filesystem so to get that on a physical disk means that you have specifically enabled it. If it was tmpfs it would disappear at every reboot, if it's not then you have to clean it up.
CentOS 6 died in November 2020 - migrate to a new version!
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
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