Re: /etc/fstab question (problem)?
On 4/18/23 14:42, Default User wrote:
On Tue, 2023-04-18 at 13:03 -0700, David Christensen wrote:
On 4/18/23 07:59, Default User wrote:
Hey, I have a strange situation!
I just realized that my /tmp partition is not being mounted at
startup.
Instead, I think the filesystem may be allocating space in another
partition (maybe /root?) for tmp stuff.
My / (root) and /tmp directories are on the same file system -- the
root
filesystem:
2023-04-18 12:46:41 root@taz ~/taz.tracy.holgerdanske.com
# stat -c %d / /tmp
65024
65024
stat -c %d / /tmp
66306
66306
(I am not sure what that means - is that saying that /tmp is mounted
under / on the / partition?)
stat(1) is saying that the file system entries "/" and "/tmp" have the
same "device number". Device numbers should be unique for the various
file systems that are mounted on one computer:
# mount | perl -ane '$_=$F[2];$dev=(stat)[0];print"$dev $_\n"' | sort -n
/run/user/13250/doc
5 /dev
6 /sys/kernel/security
7 /sys/kernel/debug
11 /sys/kernel/tracing
19 /dev/mqueue
20 /sys
21 /proc
22 /dev/pts
23 /run
26 /dev/shm
27 /run/lock
28 /sys/fs/cgroup
29 /sys/fs/pstore
30 /sys/firmware/efi/efivars
31 /sys/fs/bpf
32 /proc/sys/fs/binfmt_misc
33 /dev/hugepages
34 /sys/fs/fuse/connections
35 /sys/kernel/config
39 /samba/dpchrist
40 /samba/groupshare
42 /run/user/13250
50 /run/user/0
2049 /boot/efi
2050 /boot
65024 /
65026 /scratch
That said, I think I prefer the df(1) solution posted by Greg Wooledge.
(And BTW, the current /etc/fstab must have been written by some
program, not manually by me. I would never have edited /etc/fstab to
look like that!) My best guess is that I may have done a system restore
using Timeshift on 2023-04-03, to back out of some unremembered
problem, and the current /etc/fstab results from that.
Backing up system configuration files is good.
I use a version control system (CVS), create a project for each host,
and check in every system configuration file I create, update, or
delete. I also keep a log.txt file for each system, write notes to
myself, save console sessions, etc., for when I do need to remember what
I did, when, and why. Rather than restoring entire system configuration
files, I typically use an editor and restore specific settings.
I COULD just continue as is with the current setup, but I would REALLY
prefer not to!
Why not?
Maybe I should just start by using Clonezilla to do a full image of the
drive. Actual data of course, not the entire 256 Gb!
Putting your data on a different device than your OS allows you to
optimize device usage and backup, restore, archive, imaging, etc.,
procedures.
More later . . .
David
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