我知道这个问题很常见，但有时是特殊情况。
我曾经dd if=/dev/zero of=/dev/sda bs=4M修复有许多坏块的硬盘。（我使用的是 Ubuntu live USB）。
所有 8 个分区（其中 3 个很大，1 个 windows，1 个 linux 和 1 个存储）都丢失了。
我想尝试至少恢复存储分区甚至其中的一些特定目录。
我用 -a 选项在 /dev/sda 上尝试了 grep，但我得到了这个错误grep: memory exhausted。
此外，我无法安装最重要的或 ddrescue。对于最后一个，我收到了这条消息
$ sudo apt-get install -f ddrescue-gui
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
ddrescue-gui : Depends: python3-wxgtk4.0 but it is not installable
Depends: gddrescue but it is not installable
E: Unable to correct problems, you have held broken packages.
但即使安装 lzip 我也遇到了错误。
我需要从那里获取至少 1 个最近的文件夹。
你能帮我吗？
提前致谢