Parece que o Ubuntu perdeu suporte para o armel após 12.04
Você poderia tentar mudar para armhf
Estou tentando atualizar o 12.04.4 LTS para o 14.04 LTS em um Pandaboard. A atualização via do-release-upgrade -d falha com
Fetched 0 B in 0s (0 B/s)
Hit http://ports.ubuntu.com trusty Release.gpg
Hit http://ports.ubuntu.com trusty-security Release.gpg
Hit http://ports.ubuntu.com trusty-updates Release.gpg
Hit http://ports.ubuntu.com trusty-backports Release.gpg
Hit http://ports.ubuntu.com trusty Release
Hit http://ports.ubuntu.com trusty-security Release
Hit http://ports.ubuntu.com trusty-updates Release
Hit http://ports.ubuntu.com trusty-backports Release
Fetched 0 B in 0s (0 B/s)
Error during update
A problem occurred during the update. This is usually some sort of
network problem, please check your network connection and retry.
W:Failed to fetch
http://ports.ubuntu.com/ubuntu-ports/dists/trusty/Release Unable to
find expected entry 'main/binary-armel/Packages' in Release file
(Wrong sources.list entry or malformed file)
, W:Failed to fetch
http://ports.ubuntu.com/ubuntu-ports/dists/trusty-security/Release
Unable to find expected entry 'main/binary-armel/Packages' in Release
file (Wrong sources.list entry or malformed file)
, W:Failed to fetch
....
, E:Some index files failed to download. They have been ignored, or
old ones used instead.
Acertando link no navegador, eu posso ver que o armel está de fato ausente. Então, eu estou querendo saber como posso atualizar de 12.04.4 para 14.04 nessa placa.