repair my old gentoo,but chroot alway say /bin/bash failed

[youxiaojie]

I mount my grub broken gentoo to live cd,but chroot /mnt/gentoo /bin/bash failed. alway failed to run command /bin/bash. no such file or directory.
I try /usr/bin/bash,the same.

however the first time I install gentoo sames all right.
why?and how I can deal.it?

even when I mount it to my installed gentoo on another pc. the same

thanks!

[pingtoo]

check /mnt/gentoo/bin/bash, does it exist?

[NeddySeagoon]

youxiaojie,

That error can be triggered by a missing dynamic linker or one of the libraries that bask needs. From an arm64 system.

[youxiaojie]

[grknight]

Ensure that the mounted device does not have the options noexec, user, or users attached to it. (Check with mount command)