On 4/19/23 14:26, Default User wrote:
On Wed, 2023-04-19 at 14:03 -0700, David Christensen wrote:
On 4/19/23 13:06, Default User wrote:
On Wed, 2023-04-19 at 18:07 +0700, Max Nikulin wrote:
Perhaps update-initramfs is necessary after restoring of
/etc/fstab
in
any chosen approach.
But, I cannot address Max's point about initrd(4).
At this point, I would run my daily backups, use an editor to put the
original /etc entry back into /etc/fstab, forget about messing with
/etc
on either file system, and reboot. After reboot, I would run 'df
/etc'
and check where /etc is mounted. If /etc is "Mounted on /", I would
run
update-initramfs(8), reboot, and look again.
I'm afraid I don't quit understand why 'If /etc is "Mounted on /", I
would run update-initramfs(8), reboot, and look again."
Shouldn't etc always be expected to be mounted under /, as in /etc?
For example, right now on my computer:
df /etc
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/nvme0n1p2 23854928 5841492 16776344 26% /
/etc is a subdirectory of the / directory on the Unix "one big file system".
Some file system must be mounted at /.
Additional file systems must be mounted somewhere beneath /. Where they
are mounted is call the "mountpoint". Mountpoints are traditionally
subdirectories, and traditionally empty. When a file system is mounted
there, the root of that file system is visible as the contents of the
mountpoint.
On my system, the virtual device /dev/mapper/sda4_crypt has a mount
point of /. That file system contains a directory /etc. So, in the
Unix "one big file system", the directories / and /etc both come from
the file system on /dev/mapper/sda4_crypt.
2023-04-19 14:38:19 root@taz ~
# df / /etc
Filesystem 1M-blocks Used Available Use% Mounted on
/dev/mapper/sda4_crypt 11145M 7016M 3542M 67% /
/dev/mapper/sda4_crypt 11145M 7016M 3542M 67% /
AIUI you want the file system on the the partition /dev/nvme0n1p5 to be
mounted at /tmp. The way to do that is to put the relevant entry back
into /etc/fstab:
UUID=6a105a72-f5d5-441b-b926-1e405151ee84 /tmp ext4 defaults 0 2
And then reboot.
And, would there be anything wrong with, either way, running update-
initramfs?
Would that be run as:
sudo update-initramfs -uv
?
Unfortunately, more confusion -- there are two Linux "Initial ramdisk"
solutions with very similar names -- initrd and initramfs. Forget about
those for now.
I would add the /etc entry back into /etc/fstab, reboot, run 'df /
/etc', and see what happens.
David
