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Ek314 Ubuntu 12.04 如何升級到14.04？
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有朋友問到：
啟動后，出現提示：是否升級到Ubuntu 14.04， 點擊升級后，在進行到第二步時出現提示：
W:Failed to fetch http://ports.ubuntu.com/dists/trusty/Release Unable to find expected entry 'main/binary-armel/P, W:Failed to fetch http://ports.ubuntu.com/dists/trusty-security/Release Unable to find expected entry 'main/bin, W:Failed to fetch http://ports.ubuntu.com/dists/trusty-updates/Release Unable to find expected entry 'main/bina, W:Failed to fetch http://ports.ubuntu.com/ubuntu-p ... ty-security/Release Unable to find expected en, W:Failed to fetch http://ports.ubuntu.com/ubuntu-ports/dists/trusty/Release Unable to find expected entry 'main, W:Failed to fetch http://ports.ubuntu.com/ubuntu-ports/dists/trusty-updates/Release Unable to find expected ent, E:Some index files failed to download. They have been ignored, or old ones used instead.
板子在啟動后已經能夠正常上網訪問internet。
apt-get update 操作都正常，不知道是不是這個操作系統不能升級？
回復：
可通過更換鏡像來包來實現。
啟動后，出現提示：是否升級到Ubuntu 14.04， 點擊升級后，在進行到第二步時出現提示：
W:Failed to fetch http://ports.ubuntu.com/dists/trusty/Release Unable to find expected entry 'main/binary-armel/P, W:Failed to fetch http://ports.ubuntu.com/dists/trusty-security/Release Unable to find expected entry 'main/bin, W:Failed to fetch http://ports.ubuntu.com/dists/trusty-updates/Release Unable to find expected entry 'main/bina, W:Failed to fetch http://ports.ubuntu.com/ubuntu-p ... ty-security/Release Unable to find expected en, W:Failed to fetch http://ports.ubuntu.com/ubuntu-ports/dists/trusty/Release Unable to find expected entry 'main, W:Failed to fetch http://ports.ubuntu.com/ubuntu-ports/dists/trusty-updates/Release Unable to find expected ent, E:Some index files failed to download. They have been ignored, or old ones used instead.
板子在啟動后已經能夠正常上網訪問internet。
apt-get update 操作都正常，不知道是不是這個操作系統不能升級？
回復：
| 一般arm的不這樣升級Ubuntu系統 |
