New install ArchLabs 2020.05.04 on UEFI system - cant mount partitions during install

Has created LVM on LUKS

When chosing mount parttions step 5 after creating lvm it exits installer for me with the line:
line 1282 -1: substring expression < 0

What am I doing wrong?

It will be an ISO problem, wait for @natemaia or others who will be able to give you an answer.

Hello and sorry for the issue.

Try running this before starting the installer

sed -i 's/isize=${s:0:-1}/isize=${s:0: -1}/g' /usr/bin/archlabs-installer

Also, would you mind posting you’re actual partition layout? After some trying I’m not able to reproduce this and having a layout of what size partitions were used and where would be really helpful

Its a dual boot system. But I noticed now that I tried your command that I cant create the lvm. Nothing happens when I chose Create Volume Group and Volume(s). But if I reboot and then go straight to lvm I can create the lvm but cant mount partitions.

Try running these two commands before installing:

mkfs.vfat -F32 /dev/nvme0n1p1

(your GRUB partition; change the directory if necessary)

mkfs.ext4 -q /dev/nvme0n1p5

(your ROOT partition; change the directory if necessary)