SOLVED - Unable to Fetch

[kepler19]

Hello,
Today i tried to upgrade my Debian to 9 stretch but had such errors:

Get:733 http://ftp.debian.org/debian/ stretch/main python-gobject all 3.22.0-2 [324 kB]
Get:734 http://ftp.debian.org/debian/ stretch/main usb-modeswitch-data all 20170120-1 [47.3 kB]
Fetched 350 MB in 3min 54s (1,492 kB/s)
E: Failed to fetch http://ftp.debian.org/debian/pool/main/ ... -1_all.deb Cannot initiate the connection to caesar.ftp.acc.umu.se:80 (2001:6b0:19::142). - connect (101: Network is unreachable) [IP: 2001:6b0:19::142 80]

E: Failed to fetch http://ftp.debian.org/debian/pool/main/ ... -1_all.deb Cannot initiate the connection to caesar.ftp.acc.umu.se:80 (2001:6b0:19::142). - connect (101: Network is unreachable) [IP: 2001:6b0:19::142 80]

E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

I edited on sources.list and changed jessie to stretch and run commands apt-get update and apt-get update && apt-get upgrade. but appeared above mentioned errors.

please help me.

[Bulkley]

The problem is that your computer club is not available.

Before we do anything let's see your complete sources.list.

[dasein]

please help me.

Better you should help yourself.

Your problem is with your network. The simplest thing to try first is to shut down your computer, power down all your network equipment, and then restart everything in a specific order:

- modem/gateway (your connection to your ISP)
- router (if any)
- your computer

Let each unit in the chain operate for a minute or two before starting the next one.

If the problem doesn't fix itself with this easy solution, then Google your error message ("Network is unreachable") for more details and lots of fixes.

[kepler19]

That is my sources.list:

deb http://ftp.debian.org/debian/ stretch main contrib non-free
deb http://security.debian.org/ stretch/updates main contrib non-free
deb http://ftp.debian.org/debian/ stretch-updates main contrib non-free

# Backports
deb http://ftp.debian.org/debian/ stretch-backports main contrib non-free

Better you should help yourself

Thanks for such good advice, i always do that but in this time i need others support. So if cannot do not worry and i would not want to waste time for me. buy.

[orythem27]

Your package manager is trying to connect to the IPv6 address of ftp.acc.umu.se, are you sure this is normal? Is your ISP ready for IPv6? If not, see the following:
https://unix.stackexchange.com/question ... pv6-method
https://www.vultr.com/docs/force-apt-ge ... -or-debian
https://www.linuxbabe.com/ubuntu/disable-ipv6-on-ubuntu
https://askubuntu.com/questions/269557/ ... using-ipv6

[dasein]

Better you should help yourself

Thanks for such good advice, i always do that but in this time i need others support. So if cannot do not worry and i would not want to waste time for me. buy.

You may rest assured that I won't try to help you again. However, you might want to re-think the wisdom of actively antagonizing potential helpers. Simple arithmetic would indicate that the number of times you can do so is unquestionably finite, and probably small.

[kepler19]

Thanks for support. problem solved.

actively antagonizing potential helpers

- that is not my point.