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Information about resolving sysroot error #152

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Information about resolving sysroot error #152

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Information about resolving sysroot error
lstefan1520 Jan 29, 2022
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Update README.md
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17 changes: 17 additions & 0 deletions migrate2rocky/README.md
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Expand Up @@ -118,6 +118,23 @@ package for the repo that you need):
rpm2cpio <(curl http://mirror.centos.org/centos/8/extras/x86_64/os/Packages/centos-release-gluster9-1.0-1.el8.noarch.rpm) | cpio -iD/ \*.repo
```

#### Error "specified switch root path /sysroot does not seem to be an os tree"

This issue is caused by a GRUB issue after installation. Has been seen on Hetzner Dedicated Server upgrades from CentOS 8.4 -> Rocky 8.X
In order to resolve this issue, boot your dedicated server into a rescue system (for example, hetzner rescue system)
From here, you need to locate your partitions via `fdisk -l` and mount your `/` partition into a directory of your choosing (or `/mnt`).

Run the following commands (be sure to change the "mnt" to the directory of your mounted drives).
> Note: You may need to mount your `/boot` directory if your `/` and `/boot` directories are different. You can do this by doing `mount /dev/XXX /mnt/boot`
```
mount --rbind /dev /mnt/dev
mount --rbind /proc /mnt/proc
mount --rbind /sys /mnt/sys
chroot /mnt

grub2-mkconfig -o /boot/grub2/grub.cfg
```

### Latest Version

The latest version of this script can be found [here](https://github.com/rocky-linux/rocky-tools/).
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