Use pacman from live boot without chroot

log

/usr/lib/libc.so.6: version `GLIBC_2.34’ not found

1. mount root

2. mount -t proc proc /mnt/proc

3. mount --rbind /sys /mnt/sys

4. mount --rbind /dev /mnt/dev

5. Install package

pacman --sysroot /mnt PACKAGE_NAME

Source

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