Home / ubuntu / Questions / 1251207
In Process
Douwe
Asked: 2020-06-18 05:22:39 +0800 CST

Executing a script with chroot; permission denied

  • 772

I want a script to execute a few commands in chroot. So, like this answer proposed scripting chroot, how to? I added the following part in my script, creating a .sh file with the commands I want it to execute.

cat <<EOF >/mnt/grubscript.sh
#!/bin/bash
cp /proc/mounts /etc/mtab
grub-install /dev/vdb
grub-install --recheck /dev/vdb
EOF

chroot /mnt ./grubscript.sh

This generates the following error:

chroot: failed to run command ‘./script.sh’: Permission denied

I tried chmod 777 and chmod +x but that doesn't work. The file has been created right, and cannot be executed manually from chroot as well.

scripts command-line permissions bash chroot

1 Answers

  1. The inquirer solved it by changing

    chroot /mnt ./grubscript.sh

    to:

    chroot /mnt /bin/bash grubscript.sh
    • 0