Web Reference: Apr 9, 2017 ยท The loopback device is a special, virtual network interface that your computer uses to communicate with itself. It is used mainly for diagnostics and troubleshooting, and to connect to servers running on the local machine. The Purpose of Loopback When a network interface is disconnected--for example, when an Ethernet port is unplugged or Wi-Fi is turned off or not associated with an access ... loopback loop (hd0,gpt2)/ubuntu-19.10-desktop-amd64.iso ...grub hangs, there is no more output or activity on the terminal, and eventually the laptop fans spin up because the laptop gets hot. Oct 23, 2022 ยท Thus all the loopback devices created inside the grub are invisible to kernel. The kernel will reinitiate everything like it sees them the first time. The squash mount happens inside the kernel. At this time kernel can see the actual iso file on the real disk. It can mount the iso file and unpack the squashfs then.
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