On my Acer Aspire 7720Z laptop, running Ubuntu Lucid Lynx I got the message that the boot folder was full.
Looking around posts, I figured out it contained more files than I needed. So I deleted some, realizing the riskiness only too late.
but, now I get:
[ 5.780744] **Kernel panic** - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
(The number between square brackets varies with each attempt.)
The bootable USB, which I then made on my Asus laptop, only resulted in a boot error, at best.
How do I:
- get my data out of there ;-)?
- get Ubuntu running again, so I can upgrade it to 12.04 LTS?