[SOLVED] No Arch in BIOS after replacing home with backup home

Arch4GoodieLike · 09-30-2020, 01:23 PM

Quote:

Originally Posted by colorpurple21859

run lsblk -f and compare the uuid of the /dev/sda3 and /dev/sda1 to what is in the /etc/fstab for / and /boot if they are different edit the one in the fstab to match what the lsblk displays, if they match and/or you still get the error rerun grub-mkconfig

while being in emergency mode or via Arch-ISO liveusb?

colorpurple21859 · 09-30-2020, 01:38 PM

boot the live iso mount and mount the partitions as per post 107,

Code:

nano /mnt/sda3/etc/fstab

will let you edit the fstab without having to chroot. If you need to rerun grub-mkconfig -o /boot/grub/grub.cfg you will need to be in chroot.

Arch4GoodieLike · 09-30-2020, 01:50 PM

Quote:

Originally Posted by colorpurple21859

boot the live iso mount and mount the partitions as per post 107,

Code:

nano /mnt/sda3/etc/fstab

will let you edit the fstab without having to chroot. If you need to rerun grub-mkconfig -o /boot/grub/grub.cfg you will need to be in chroot.

which have i to change into the same UUID?
https://ibb.co/n3TBCY0

colorpurple21859 · 09-30-2020, 01:58 PM

what is

Code:

 lsblk -f

Arch4GoodieLike · 09-30-2020, 02:04 PM

Quote:

Originally Posted by colorpurple21859

what is

Code:

 lsblk -f

https://ibb.co/jbWGNKn

colorpurple21859 · 09-30-2020, 02:44 PM

you need to edit the fstab uuids to match the ones in the lsblk output
something like this with the whole uuid numbers

Code:

#/dev/sda3
UUId=19a467dd...-ddce5f / ext4 ....
#/dev/sda1
UUID=3E31-E8D0  /boot   vfat  ....
#/dev/sda2
UUID=e2892fs4-...-f3c24   none   swap

after editing the fstab, it might be best to chroot and rerun grub-mkconfig

Arch4GoodieLike · 09-30-2020, 03:18 PM

Quote:

Originally Posted by colorpurple21859

you need to edit the fstab uuids to match the ones in the lsblk output
something like this with the whole uuid numbers

Code:

#/dev/sda3
UUId=19a467dd...-ddce5f / ext4 ....
#/dev/sda1
UUID=3E31-E8D0  /boot   vfat  ....
#/dev/sda2
UUID=e2892fs4-...-f3c24   none   swap

after editing the fstab, it might be best to chroot and rerun grub-mkconfig

you are blessed by the patience and chill you have! thank you so much! I got my whole system working again like before the whole crash! i have to recover first from the joy. Santa came early this year. can i gift you a giftcard for about 10$ for eBay?

colorpurple21859 · 09-30-2020, 04:53 PM

Your welcome and great you have it working. I appreciate the offer, but I'll pass. I enjoy answering questions, it keeps the mind working.
The next time you run a backup, if you run it as root, you won't have to do the chown commands if you have to copy from the backup.

Arch4GoodieLike · 10-01-2020, 08:05 AM

Quote:

Originally Posted by colorpurple21859

I enjoy answering questions, it keeps the mind working.

good to know

Quote:

Originally Posted by colorpurple21859

The next time you run a backup, if you run it as root, you won't have to do the chown commands if you have to copy from the backup.

dully noted!

===summary and fine cut===

1.
i read from one of your post, that i can remove /boot/efi from this edited photo https://ibb.co/jkKvCws or to do any change from this Guide since it isnt the newest but helpful atleast as proven in this thread?

2.

Code:

GUIDE for WHOLE BACKUP WORKING OUT OF THE BOX!

# make directory for /mnt/sda3
mkdir /mnt/sda3

# create mountpoint for /dev/sda3 /mnt/sda3
mount /dev/sda3 /mnt/sda3

#create /mnt/sda3/boot if it doesn't exist
mkdir /mnt/sda3/boot

#mount  boot partition
mount /dev/sda1 /mnt/sda3/boot

# make directory for /mnt/sdc
mkdir /mnt/sdc

#make encrypted disk accessable
cryptsetup luksOpen /dev/sdc ArchBackup

# create mountpoint for /dev/mapper/ArchBackup /mnt/sdc
mount /dev/mapper/ArchBackup /mnt/sdc

# copy paste backup of home to root partition
cp -a /mnt/sdc/* /mnt/sda3/

#chroot into system
arch-chroot /mnt/sda3

#reinstall grub
grub-install --target=x86_64-efi --efi-directory=/boot

#exit out from Internal Arch
exit

#list disks and partitions in tree
lsblk -f

/etc/fstab

#edit the fstab [NOTE:AND write the same UUID each partition from lsblk -f into the fstab!]
nano /mnt/sda3/etc/fstab

grub-mkconfig -o /boot/grub/grub.cfg

#exit out from Internal Arch
exit

#restart system
reboot

colorpurple21859 · 10-01-2020, 11:04 AM

Quote:

GUIDE for WHOLE BACKUP WORKING OUT OF THE BOX!

There is always the exception, but for the most part, yes, this should get you back up and running. Depending on the problem, you may not have to do the steps after the copy command.

My assessmnent of what happened,
You original statement,

Quote:

I had to reinstall Arch due accidentally moving the /root directly

The partition order had changed. You had the right idea of needing to reinstall grub, problem was mount point of your efi partition was different from the tutorial you were following.
The second issue your backup was done as user instead of root and the cp command was incorrect.
The third issue, at some point, the partitions uuid's had changed(reformatted maybe?) resulting in an incorrect /etc/fstab and grub.cfg.

Anyways it's great you got it working and a method of restoring if it breaks again.

colorpurple21859 · 10-01-2020, 11:17 AM

Quote:

i read from one of your post, that i can remove /boot/efi

run this until you get a not mounted message, should only have to do once

Code:

umount /dev/sda1

then

Code:

rm -r /boot/*

reboot to make sure everthing still works

Arch4GoodieLike · 10-01-2020, 12:25 PM

Quote:

Originally Posted by colorpurple21859

run this until you get a not mounted message, should only have to do once

Code:

umount /dev/sda1

then

Code:

rm -r /boot/*

like this ? https://ibb.co/fY5ct9C

reboot is luckily already mentioned in the GUIDE by default.

colorpurple21859 · 10-01-2020, 01:02 PM

This has nothing to do with the image you posted, all this does is delete some files on /dev/sda3 that are not needed. your not booting the live iso. Boot and login to your user desktop, open a terminal on the desktop,

Code:

su -
password: <root password>
umount /dev/sda1
rm -r /boot/*
exit
exit

reboot to make sure it boots okay.

Arch4GoodieLike · 10-01-2020, 01:51 PM

Quote:

Originally Posted by colorpurple21859

This has nothing to do with the image you posted, all this does is delete some files on /dev/sda3 that are not needed. your not booting the live iso. Boot and login to your user desktop, open a terminal on the desktop,

Code:

su -
password: <root password>
umount /dev/sda1
rm -r /boot/*
exit
exit

reboot to make sure it boots okay.

? wait, you want me to do that right now on the fully functional Linux?

colorpurple21859 · 10-01-2020, 02:18 PM

Yes you can remove them on a running system, if you are uncomfortable about deleting them, it won't hurt nothing to leave them there. The files don't take up that much space. The files are mostly the same ones on the efi partition, that some how was copied/installed to /boot on /dev/sda3 partition. The files weren't there when this thread was first started. When the efi partition is mounted at /boot these files aren't seen, even through their still located on the partition