I've similary got a "system2" install, though it's on a 132MB partition, and only uses 108 MB of that (excludes kernel). It consists of a very small subset of Debian, only 109 packages. Typically it's unmounted.
.\r\n\r\nThus, my recovery options for a system are typically:
\r\n\r\n- \r\n
- Single-user \r\n
- init=/bin/bash \r\n
- alternate kernel \r\n
- /system2 \r\n
- Knoppix \r\n
- LNX-BBC \r\n
- Tom's Root Boot \r\n
Lots of fallback options.
\r\n\r\nMight be interesting to compare what packages folks are including in rescue systems.
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