I'm trying to install Garuda KDE Dr460nized gaming edition on a second partition, to dual boot with Windows 10.
Everything seems to be alright up to the end, except the installation fails with the following error:
Bootloader installation error
The bootloader could not be installed. The installation command
grub-install --target=i386-pc --recheck --force /dev/sda
returned error code 1.
I haven't found other posts with my same error, I haven't been able to fix it 
How are you partioning your drive?
In Windows 10, I used Paragon Partition Manager to split the drive and I made a partition for Garuda. Then I booted with the USB to start the install process and I get that error at the end.
Is your BIOS in legacy or uefi mode?
I think its on legacy mode, not sure how to confirm, but when I installed windows, I used a USB that was formatted on MBR, so I think that was legacy. I'll check on fast boot and secure boot options on my BIOS and see if I can find it and confirm
I disabled fast boot and secure boot, and I tried to install Garuda again, but I got the same error
Try to set your BIOS in UEFI mode and apply this tutorial.
I think your system is installed, you have only to install the GRUB properly.
parted -l | grep -iE "^Disk /|esp" | grep -B1 esp
should tell you hopefully which partition you should use to mount to /boot/efi
Changed my BIOS to UEFI-only, and when using the command you gave me on Konsole, I got, " parted: invalid option -- '1'"
Also when using "lsblk -f" as per the guide's instructions, I can't find anything with dev/<something..
I get:
> NAME FSTYPE FSVER LABEL UUID FSAVAIL FSUSE% MOUNTPOINTS
loop0
squash 4.0 0 100% /run/miso/sfs/livefs
loop1
squash 4.0 0 100% /run/miso/sfs/mhwdfs
loop2
squash 4.0 0 100% /run/miso/sfs/desktopfs
loop3
squash 4.0 0 100% /run/miso/sfs/rootfs
sda
├─sda1
│
└─sda2
ntfs Storage BE84B31284B2CC61
sdb
├─sdb1
│
├─sdb2
│ vfat FAT32 804F-2C0D
├─sdb3
│
├─sdb4
│ ntfs OldSSD 7CB6CE22B6CDDD30
├─sdb5
│ ntfs 08F678D1F678C08C
└─sdb6
ntfs 76CE5B21CE5AD8C7
sdc
├─sdc1
│
├─sdc2
│ ntfs Windows 10 6E8CD22B8CD1ED99
└─sdc3
btrfs 1f2895ad-0440-4819-929f-588e1937ec22
sdd
├─sdd1
│
└─sdd2
ntfs Seagate Expansion Drive 40DA3E14DA3E06A6
sde iso966 Jolie GARUDA_DR460NIZEDGAMING_HARPYEAG
│ 2021-09-28-07-23-12-00 0 100% /run/miso/bootmnt
├─sde1
│ iso966 Jolie GARUDA_DR460NIZEDGAMING_HARPYEAG
│ 2021-09-28-07-23-12-00
└─sde2
vfat FAT12 MISO_EFI DA10-C9D9
zram0
[SWAP]
If you include terminal outputs in your post please use the proper output format in your post.
Using "~" 3 times above and "~" 3 times below the text block will provide a readable, raw look.
It Is
parted -l
not -1
I think your installed system partition should be /dev/sdc3 (the only btrfs one I see).
The ESP partition could be /dev/sdb2
But this needs to be rechecked of course.
Oops! although It does not say anything in return, it just sends the command without anything else. Shouldn't I use /dev/sdc3 ? i mean, that's the one that shows as btrfs
Edit: that was on Konsole, in Chroot it says:
grep: ^Disk /|esp: no such file or directory.
parted: write error: Broken pipe
If parted is not listing anything it is not finding an ESP partition, so I don't think we are going in the right way 
Just to be sure, try also
lsblk -o name,type,fstype,size,uuid,mountpoint
Btw, is it okay for me to be using "Konsole" for all of this? or should it be done through chroot? (I have tried with both)
just tried that, i get this in response:
NAME TYPE FSTYPE SIZE UUID MOUNTPOINT
loop0 loop squashfs 13.5M /run/miso/sfs/livefs
loop1 loop squashfs 380.5M /run/miso/sfs/mhwdfs
loop2 loop squashfs 2.6G /run/miso/sfs/desktopfs
loop3 loop squashfs 720.4M /run/miso/sfs/rootfs
sda disk 931.5G
├─sda1 part 128M
└─sda2 part ntfs 931.4G BE84B31284B2CC61
sdb disk 223.6G
├─sdb1 part 450M
├─sdb2 part vfat 99M 804F-2C0D
├─sdb3 part 16M
├─sdb4 part ntfs 222G 7CB6CE22B6CDDD30
├─sdb5 part ntfs 549M 08F678D1F678C08C
└─sdb6 part ntfs 487M 76CE5B21CE5AD8C7
sdc disk 931.5G
├─sdc1 part 16M
├─sdc2 part ntfs 300G 6E8CD22B8CD1ED99
└─sdc3 part btrfs 325G 1f2895ad-0440-4819-929f-588e1937ec22 /mnt/broken
sde disk iso9660 14.4G 2021-09-28-07-23-12-00 /run/miso/bootmnt
├─sde1 part iso9660 3.8G 2021-09-28-07-23-12-00
└─sde2 part vfat 4M DA10-C9D9
zram0 disk 15.6G [SWAP]
From konsole it is fine.
If you want to try, It could be
sudo mkdir -p /mnt/broken
sudo mount /dev/sdc3 /mnt/broken
sudo garuda-chroot /mnt/broken/@
mount /dev/sdb2 /boot/efi
grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=garuda --recheck
update-grub
If it doesn't work, you could try
lsblk -no PKNAME /dev/sdc3
and see if we find the MBR, and then eg
grub-install /dev/sdc
Or
grub-install /dev/sdb
I got something with the parted -l command from chroot, is there a way for me to copy it? it doesn't allow me to use Ctrl C lol
From the terminal you should shift+ctrl+C to Copy. Then past here...
Thank you! This is what I get from chroot and the parted -l command you sent me:
[root@garuda-dr460nized-gaming /]# parted -l | grep -iE "^Disk /|esp" | grep -B1 esp
Disk /dev/sdb: 240GB
2 473MB 577MB 104MB fat32 EFI system partition boot, esp
Disk /dev/sdc: 1000GB
3 322GB 671GB 349GB btrfs root boot, esp
Disk /dev/sde: 15.5GB
2 4109MB 4114MB 4194kB primary esp
Maybe try to create that /boot/efi when into the chroot, before mounting
mkdir /boot/efi
mount /dev/sdb2 /boot/efi
grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=garuda --recheck
update-grub
Also, check from inside chroot partition mount settings and status
cat /etc/fstab
lsblk -f
which partition have you created with Paragon Partition Manager ? unallocated partition or another ?