[SOLVED] Want to get rid of sda6_encrypt password on startup

mq15 · 08-18-2020, 05:36 AM

Hello there, I've switched from windows 7 to Linux Mint Cinnamon 20. During installation I opted the LVM option and set password for that. Now, it requires that password at startup. But it, kind of, annoys.

Kindly help me get rid of this. If it is unavoidable, please help me remove the disk encryption option (LVM, as I think it is a disk encryption mechanism of Linux) at all.

Kind Regards.

dc.901 · 08-18-2020, 09:56 AM

The disk encryption you set during OS install needs the password during boot.
What is the content of /etc/fstab?

pan64 · 08-18-2020, 10:03 AM

LVM itself is not a disk encryption mechanism.
What is stored on this encrypted disk? Probably you need to reinstall the system without encryption, but probably you can just drop it and use another [non-encrypted] filesystem instead.

JeremyBoden · 08-18-2020, 02:30 PM

If you don't want any of the existing contents of your disk, simply reinstall Mint over the entire disk.
If you want to keep some OS's then carefully delete the unwanted partitions and install Mint into available space.

mq15 · 08-18-2020, 10:47 PM

Quote:

Originally Posted by dc.901

The disk encryption you set during OS install needs the password during boot.
What is the content of /etc/fstab?

I think I should go through a re-installation.

JeremyBoden · 08-19-2020, 06:22 AM

/etc contains all your system-wide configuration details (and some other stuff).

/etc/fstab is a text file in /etc which you can view/edit that has details of which partitions to automatically mount as / or /home or whatever as part of the startup process.
A reinstall will re-create it.
Make sure you put /home and / in different partitions.

dc.901 · 08-19-2020, 07:19 AM

Quote:

Originally Posted by mq15

I think I should go through a re-installation.

What you shared is content of /etc folder, you need to look at contents of /etc/fstab file.

Please open a terminal, then type:

Code:

cat /etc/fstab

mq15 · 08-20-2020, 04:28 AM

Quote:

Originally Posted by dc.901

...

Code:

cat /etc/fstab

Code:

# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sda2 during installation
UUID=29a976e3-391e-485f-a05e-7ce8de32f375 /               ext4    errors=remount-ro 0       1
# /boot was on /dev/sda1 during installation
UUID=c998c14f-5326-48d7-85cb-4017ab7050f2 /boot           ext2    defaults        0       2
# /home was on /dev/sda5 during installation
UUID=6609e164-ff5d-44b6-ab30-68707e36def8 /home           ext4    defaults        0       2
# swap was on /dev/sda3 during installation
UUID=0d501b22-991c-4352-98a1-640207113696 none            swap    sw              0       0

mq15 · 08-20-2020, 04:31 AM

Ok. Re-installed. This time without ticking LVM check.

Quote:

Originally Posted by mq15

Code:

# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sda2 during installation
UUID=29a976e3-391e-485f-a05e-7ce8de32f375 /               ext4    errors=remount-ro 0       1
# /boot was on /dev/sda1 during installation
UUID=c998c14f-5326-48d7-85cb-4017ab7050f2 /boot           ext2    defaults        0       2
# /home was on /dev/sda5 during installation
UUID=6609e164-ff5d-44b6-ab30-68707e36def8 /home           ext4    defaults        0       2
# swap was on /dev/sda3 during installation
UUID=0d501b22-991c-4352-98a1-640207113696 none            swap    sw              0       0

Kept /home and / in different partitions as advised by JeremyBoden

Thank you all of you.

JeremyBoden · 08-20-2020, 06:58 AM

Quote:

Kept /home and / in different partitions as advised by JeremyBoden

This means that if you want/need to reload the Mint OS and you don't want to lose your data in /home, then this can be done.
If done very carefully no backups are required.

A decent set of backups is very strongly recommended though!

If you want to know more about what /etc/fstab does enter

Code:

man fstab

into a terminal screen.