Imported using git-ubuntu import.
Changelog parent: f5af78966b
New changelog entries:
* Create hooks and image build config for the ubuntu-desktop-next
new based on snappy image.
impish
2.306
Didier Roche
10 years ago
committed by
usd-importer
parent
f5af78966b
commit
04b0ecd5a6
@ -0,0 +1,241 @@
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#!/bin/sh -eu
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ERRCNT=""
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# Known good post-debootstrap values
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passwd_bootstrap="af34a24499223f08ab713138bec7ff54"
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shadow_bootstrap="1fd73103260cbe5a13a4a38320de4129"
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group_bootstrap="9edf30f181a6fd1d860cc7f4a71aa640"
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gshadow_bootstrap="b9db51ef767ab98db963db69844635dd"
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# Current post-debootstrap values
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passwd_hash=$(set -- $(md5sum /etc/passwd) && echo $1)
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shadow_hash=$(set -- $(cat /etc/shadow | sed "s/:.*:0:99999:/:0:99999:/g" | md5sum) && echo $1)
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group_hash=$(set -- $(md5sum /etc/group) && echo $1)
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gshadow_hash=$(set -- $(md5sum /etc/gshadow) && echo $1)
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# /etc/passwd
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if [ "$passwd_bootstrap" = "$passwd_hash" ]; then
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cat > /etc/passwd <<EOF
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root:x:0:0:root:/root:/bin/bash
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daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin
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bin:x:2:2:bin:/bin:/usr/sbin/nologin
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sys:x:3:3:sys:/dev:/usr/sbin/nologin
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sync:x:4:65534:sync:/bin:/bin/sync
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games:x:5:60:games:/usr/games:/usr/sbin/nologin
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man:x:6:12:man:/var/cache/man:/usr/sbin/nologin
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lp:x:7:7:lp:/var/spool/lpd:/usr/sbin/nologin
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mail:x:8:8:mail:/var/mail:/usr/sbin/nologin
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news:x:9:9:news:/var/spool/news:/usr/sbin/nologin
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uucp:x:10:10:uucp:/var/spool/uucp:/usr/sbin/nologin
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proxy:x:13:13:proxy:/bin:/usr/sbin/nologin
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www-data:x:33:33:www-data:/var/www:/usr/sbin/nologin
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backup:x:34:34:backup:/var/backups:/usr/sbin/nologin
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list:x:38:38:Mailing List Manager:/var/list:/usr/sbin/nologin
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irc:x:39:39:ircd:/var/run/ircd:/usr/sbin/nologin
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gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/usr/sbin/nologin
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nobody:x:65534:65534:nobody:/nonexistent:/usr/sbin/nologin
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messagebus:x:100:103::/var/run/dbus:/bin/false
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clickpkg:x:101:104::/nonexistent:/bin/false
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sshd:x:102:65534::/var/run/sshd:/usr/sbin/nologin
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systemd-timesync:x:103:108:systemd Time Synchronization,,,:/run/systemd:/bin/false
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systemd-network:x:104:109:systemd Network Management,,,:/run/systemd/netif:/bin/false
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systemd-resolve:x:105:110:systemd Resolver,,,:/run/systemd/resolve:/bin/false
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systemd-bus-proxy:x:106:111:systemd Bus Proxy,,,:/run/systemd:/bin/false
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docker:x:107:113::/nonexistent:/bin/false
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syslog:x:108:114::/home/syslog:/bin/false
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EOF
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else
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echo "/etc/passwd post-debootstrap hash doesn't match record" >&2
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echo "The output below might help to resolve the issue" >&2
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cat /etc/passwd
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echo "passwd md5sum: $passwd_hash" >&2
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ERRCNT=1
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fi
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# /etc/shadow
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if [ "$shadow_bootstrap" = "$shadow_hash" ]; then
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cat > /etc/shadow <<EOF
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root:*:16329:0:99999:7:::
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daemon:*:16329:0:99999:7:::
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bin:*:16329:0:99999:7:::
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sys:*:16329:0:99999:7:::
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sync:*:16329:0:99999:7:::
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games:*:16329:0:99999:7:::
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man:*:16329:0:99999:7:::
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lp:*:16329:0:99999:7:::
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mail:*:16329:0:99999:7:::
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news:*:16329:0:99999:7:::
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uucp:*:16329:0:99999:7:::
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proxy:*:16329:0:99999:7:::
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www-data:*:16329:0:99999:7:::
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backup:*:16329:0:99999:7:::
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list:*:16329:0:99999:7:::
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irc:*:16329:0:99999:7:::
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gnats:*:16329:0:99999:7:::
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nobody:*:16329:0:99999:7:::
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messagebus:*:16413:0:99999:7:::
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clickpkg:*:16413:0:99999:7:::
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sshd:*:16413:0:99999:7:::
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systemd-timesync:*:16413:0:99999:7:::
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systemd-network:*:16413:0:99999:7:::
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systemd-resolve:*:16413:0:99999:7:::
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systemd-bus-proxy:*:16413:0:99999:7:::
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docker:*:16413:0:99999:7:::
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syslog:*:16521:0:99999:7:::
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EOF
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else
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echo "/etc/shadow post-debootstrap hash doesn't match record" >&2
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echo "The output below might help to resolve the issue" >&2
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cat /etc/shadow
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echo "shadow md5sum: $shadow_hash" >&2
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ERRCNT=1
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fi
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# /etc/group
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if [ "$group_bootstrap" = "$group_hash" ]; then
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cat > /etc/group <<EOF
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root:x:0:
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daemon:x:1:
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bin:x:2:
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sys:x:3:
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adm:x:4:syslog
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tty:x:5:
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disk:x:6:
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lp:x:7:
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mail:x:8:
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news:x:9:
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uucp:x:10:
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man:x:12:
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proxy:x:13:
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kmem:x:15:
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dialout:x:20:
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fax:x:21:
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voice:x:22:
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cdrom:x:24:
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floppy:x:25:
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tape:x:26:
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sudo:x:27:ubuntu
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audio:x:1005:
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dip:x:30:
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www-data:x:33:
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backup:x:34:
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operator:x:37:
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list:x:38:
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irc:x:39:
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src:x:40:
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gnats:x:41:
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shadow:x:42:
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utmp:x:43:
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video:x:44:
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sasl:x:45:
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plugdev:x:46:
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staff:x:50:
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games:x:60:
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users:x:100:
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nogroup:x:65534:
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netdev:x:101:
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crontab:x:102:
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messagebus:x:103:
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clickpkg:x:104:
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ssh:x:105:
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systemd-journal:x:106:
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systemd-journal-remote:x:107:
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systemd-timesync:x:108:
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systemd-network:x:109:
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systemd-resolve:x:110:
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systemd-bus-proxy:x:111:
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input:x:112:
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docker:x:113:ubuntu
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syslog:x:114:
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EOF
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else
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echo "/etc/group post-debootstrap hash doesn't match record" >&2
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echo "The output below might help to resolve the issue" >&2
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cat /etc/group
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echo "group md5sum: $group_hash" >&2
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ERRCNT=1
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fi
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# /etc/gshadow
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if [ "$gshadow_bootstrap" = "$gshadow_hash" ]; then
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cat > /etc/gshadow <<EOF
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root:*::
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daemon:*::
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bin:*::
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sys:*::
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adm:*::syslog
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tty:*::
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disk:*::
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lp:*::
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mail:*::
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news:*::
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uucp:*::
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man:*::
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proxy:*::
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kmem:*::
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dialout:*::
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fax:*::
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voice:*::
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cdrom:*::
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floppy:*::
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tape:*::
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sudo:*::ubuntu
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audio:*::pulse
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dip:*::
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www-data:*::
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backup:*::
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operator:*::
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list:*::
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irc:*::
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src:*::
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gnats:*::
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shadow:*::
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utmp:*::
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video:*::
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sasl:*::
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plugdev:*::
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staff:*::
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games:*::
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users:*::
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nogroup:*::
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netdev:!::
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crontab:!::
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messagebus:!::
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clickpkg:!::
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ssh:!::
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systemd-journal:!::
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systemd-journal-remote:!::
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systemd-timesync:!::
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systemd-network:!::
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systemd-resolve:!::
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systemd-bus-proxy:!::
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input:!::
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docker:!::ubuntu
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syslog:!::
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EOF
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else
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echo "/etc/gshadow post-debootstrap hash doesn't match record" >&2
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echo "The output below might help to resolve the issue" >&2
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cat /etc/gshadow
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echo "gshadow md5sum: $gshadow_hash" >&2
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ERRCNT=1
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fi
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if [ -n "$ERRCNT" ]; then
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echo "There were changes to the password database," >&2
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echo "please adjust the values in the livecd-rootfs source in the file:" >&2
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echo "live-build/ubuntu-core/hooks/00-uid-gid-fix.chroot_early" >&2
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echo >&2
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echo "Please check also if a maintainer script of the package" >&2
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echo "that added these entries perhaps created a home directory and," >&2
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echo "if needed, add code for creation of it to the above hook" >&2
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exit 1
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fi
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# Record the current state for later comparison
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for file in /etc/passwd /etc/shadow /etc/group /etc/gshadow; do
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rm -f ${file}-
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cp ${file} ${file}.orig
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done
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@ -0,0 +1,37 @@
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#!/bin/sh -x
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set -e
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USER=ubuntu
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UGID=1000
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echo "I: creating default user $USER"
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adduser --gecos $USER --disabled-login $USER --uid $UGID
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chown -R $UGID:$UGID /home/$USER
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# Enable libnss-extrusers
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sed -i 's/^group:.*compat/\0 extrausers/' /etc/nsswitch.conf
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sed -i 's/^passwd:.*compat/\0 extrausers/' /etc/nsswitch.conf
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sed -i 's/^shadow:.*compat/\0 extrausers/' /etc/nsswitch.conf
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# Move user from /etc to extrausers location
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grep "^$USER" /etc/group >> /var/lib/extrausers/group
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grep "^$USER" /etc/passwd >> /var/lib/extrausers/passwd
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grep "^$USER" /etc/shadow >> /var/lib/extrausers/shadow
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grep "^$USER" /etc/gshadow >> /var/lib/extrausers/gshadow
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chmod 0644 /var/lib/extrausers/group
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chmod 0644 /var/lib/extrausers/passwd
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chmod 0640 /var/lib/extrausers/shadow
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chmod 0640 /var/lib/extrausers/gshadow
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chown root:shadow /var/lib/extrausers/shadow
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chown root:shadow /var/lib/extrausers/gshadow
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sed -i "/^$USER/d" /etc/group
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sed -i "/^$USER/d" /etc/passwd
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sed -i "/^$USER/d" /etc/shadow
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sed -i "/^$USER/d" /etc/gshadow
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# needs to run *after* the user was moved out to /var/lib/extrausers
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echo "I: set user $USER password to $USER"
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echo "$USER:$USER" | chpasswd
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@ -0,0 +1,8 @@
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#!/bin/sh -x
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USER=ubuntu
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DEFGROUPS="docker,sudo"
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echo "I: add $USER to ($DEFGROUPS) group(s)"
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usermod -a -G ${DEFGROUPS} ${USER}
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@ -0,0 +1,11 @@
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#!/bin/sh -x
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# Boot using systemd and disable quiet boot
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# to see what is happening.
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systemd=/lib/systemd/systemd
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if [ -f /etc/default/grub ]; then
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sed -i \
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-e "s,^\\([ ]*GRUB_CMDLINE_LINUX\\)=\"\"$,\\1=\"init=$systemd\",g" \
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-e 's,^\([ ]*GRUB_CMDLINE_LINUX_DEFAULT\)="quiet splash",\1="",g' \
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/etc/default/grub
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fi
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@ -0,0 +1,9 @@
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#!/bin/sh -x
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if=eth0
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# Manually configure the first ethernet device
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cat >/etc/network/interfaces.d/"$if"<<EOT
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allow-hotplug $if
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iface $if inet dhcp
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EOT
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@ -0,0 +1,6 @@
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#!/bin/sh -x
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|
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||||||
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cat >>/etc/fstab<<EOT
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# Minimal setup required for systemd to provide a r/w FS
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/dev/root / rootfs defaults 0 0
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EOT
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@ -0,0 +1,7 @@
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#!/bin/sh -x
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|
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# Change default cache partition (until LP: #1373467 is fixed).
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if [ -f /etc/system-image/client.ini ]; then
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sed -ie 's!cache_partition: /android/cache/recovery!cache_partition: /userdata/cache!g' \
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/etc/system-image/client.ini
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fi
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@ -0,0 +1,15 @@
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|
#!/bin/sh
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set -e
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||||||
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mkdir -p /etc/writable
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# cloud-init needs to be able to modify hostname and has the ability to
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# set the other two.
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for f in timezone localtime hostname; do
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|
if [ -e /etc/$f ]; then
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echo "I: Moving /etc/$f to /etc/writable/"
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mv /etc/$f /etc/writable/$f
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fi
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echo "I: Linking /etc/$f to /etc/writable/"
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ln -s writable/$f /etc/$f
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|
done
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@ -0,0 +1,22 @@
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#!/bin/sh -x
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echo "I: Remove unneeded files from /usr/share/doc "
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find binary/boot/filesystem.dir/usr/share/doc -depth -type f ! -name copyright|xargs rm -f || true
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find binary/boot/filesystem.dir/usr/share/doc -empty|xargs rmdir || true
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find binary/boot/filesystem.dir/usr/share/doc -type f -exec gzip -9 {} \;
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echo "I: Remove man/info pages"
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rm -rf binary/boot/filesystem.dir/usr/share/man \
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binary/boot/filesystem.dir/usr/share/groff \
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binary/boot/filesystem.dir/usr/share/info \
|
||||||
|
binary/boot/filesystem.dir/usr/share/lintian \
|
||||||
|
binary/boot/filesystem.dir/usr/share/linda \
|
||||||
|
binary/boot/filesystem.dir/var/cache/man
|
||||||
|
|
||||||
|
|
||||||
|
echo "I: Removing /var/lib/apt/lists/*"
|
||||||
|
find binary/boot/filesystem.dir/var/lib/apt/lists/ -type f | xargs rm -f
|
||||||
|
|
||||||
|
echo "I: Removing /var/cache/apt/*.bin"
|
||||||
|
rm -f binary/boot/filesystem.dir/var/cache/apt/*.bin
|
||||||
|
|
||||||
@ -0,0 +1,14 @@
|
|||||||
|
#!/bin/sh
|
||||||
|
|
||||||
|
cat >/etc/motd<<EOF
|
||||||
|
Welcome to snappy Ubuntu Desktop Next, a transactionally updated Ubuntu.
|
||||||
|
|
||||||
|
* See https://ubuntu.com/snappy
|
||||||
|
|
||||||
|
It's a brave new world here in snappy Ubuntu Desktop Next! This machine
|
||||||
|
does not use apt-get or deb packages. Please see 'snappy --help'
|
||||||
|
for app installation and transactional updates.
|
||||||
|
|
||||||
|
This is a *highly* experimental image.
|
||||||
|
|
||||||
|
EOF
|
||||||
@ -0,0 +1,4 @@
|
|||||||
|
#!/bin/sh
|
||||||
|
|
||||||
|
# see bug https://bugs.launchpad.net/snappy-ubuntu/+bug/1442231
|
||||||
|
rm -f /etc/init.d/grub-common
|
||||||
@ -0,0 +1,19 @@
|
|||||||
|
#!/bin/sh
|
||||||
|
|
||||||
|
set -ex
|
||||||
|
|
||||||
|
echo "I: Creating warning to use snappy when apt-get is used"
|
||||||
|
|
||||||
|
PREFIX=binary/boot/filesystem.dir
|
||||||
|
|
||||||
|
mkdir -p $PREFIX/usr/local/bin
|
||||||
|
cat >$PREFIX/usr/local/bin/no-apt <<EOF
|
||||||
|
#!/bin/sh
|
||||||
|
cat <<EOF
|
||||||
|
Ubuntu Core does not use apt-get, see 'snappy --help'!
|
||||||
|
EOF
|
||||||
|
chmod 755 $PREFIX/usr/local/bin/no-apt
|
||||||
|
|
||||||
|
for cmd in apt apt-cache apt-get; do
|
||||||
|
ln -s no-apt $PREFIX/usr/local/bin/$cmd
|
||||||
|
done
|
||||||
@ -0,0 +1,108 @@
|
|||||||
|
#!/bin/sh
|
||||||
|
#
|
||||||
|
# move the kernel out into a new device tarfile with system/boot
|
||||||
|
|
||||||
|
set -ex
|
||||||
|
|
||||||
|
echo "I: Moving kernel into device tarball"
|
||||||
|
|
||||||
|
HERE="$(pwd)"
|
||||||
|
TMPDIR="$(mktemp -d)"
|
||||||
|
ARCH=$(dpkg --print-architecture)
|
||||||
|
mkdir -p $TMPDIR/system/
|
||||||
|
mkdir -p $TMPDIR/assets/
|
||||||
|
|
||||||
|
# cp files, we can't simply use tar --transform as it changes the symlink target
|
||||||
|
(
|
||||||
|
cd binary/boot/filesystem.dir
|
||||||
|
|
||||||
|
# for compatibility with current grub/u-d-f
|
||||||
|
cp -ar --parent boot/vmlinu?-* boot/initrd.img-* boot/abi-* boot/System.map-* $TMPDIR/system/
|
||||||
|
if [ -e vmlinu? ] && [ -e initrd.img ]; then
|
||||||
|
cp -ar --parent vmlinu? initrd.img $TMPDIR/system
|
||||||
|
fi
|
||||||
|
cp -ar --parent lib/modules/ $TMPDIR/system/
|
||||||
|
cp -ar --parent lib/firmware/ $TMPDIR/system/
|
||||||
|
|
||||||
|
# new assets handling
|
||||||
|
cp -ar boot/vmlinu?-* $TMPDIR/assets/vmlinuz
|
||||||
|
cp -ar boot/initrd.img-* $TMPDIR/assets/initrd.img
|
||||||
|
cp -ar boot/vmlinu?-* boot/initrd.img-* boot/abi-* boot/System.map-* $TMPDIR/assets/
|
||||||
|
|
||||||
|
dtbs=$(find lib/firmware -type d -name 'device-tree' -print0)
|
||||||
|
[ -n "$dtbs" ] && mv "$dtbs" $TMPDIR/assets/dtbs
|
||||||
|
|
||||||
|
if [ -e vmlinu? ] && [ -e initrd.img ]; then
|
||||||
|
cp -ar --parent vmlinu? initrd.img $TMPDIR/assets
|
||||||
|
cp -ar --parent vmlinu? initrd.img $TMPDIR/assets
|
||||||
|
fi
|
||||||
|
)
|
||||||
|
# create hardware.yaml for u-boot
|
||||||
|
# this assumes armh == u-boot
|
||||||
|
# and all others grub
|
||||||
|
(
|
||||||
|
# common bits
|
||||||
|
cat > $TMPDIR/hardware.yaml << EOF
|
||||||
|
kernel: assets/vmlinuz
|
||||||
|
initrd: assets/initrd.img
|
||||||
|
partiton-layout: system-AB
|
||||||
|
EOF
|
||||||
|
|
||||||
|
# arch specific ones
|
||||||
|
if [ "$ARCH" = "armhf" ]; then
|
||||||
|
cat >> $TMPDIR/hardware.yaml << EOF
|
||||||
|
dtbs: assets/dtbs
|
||||||
|
bootloader: u-boot
|
||||||
|
EOF
|
||||||
|
else
|
||||||
|
cat >> $TMPDIR/hardware.yaml << EOF
|
||||||
|
bootloader: grub
|
||||||
|
EOF
|
||||||
|
fi
|
||||||
|
)
|
||||||
|
|
||||||
|
# and tar it up
|
||||||
|
(
|
||||||
|
cd $TMPDIR
|
||||||
|
tar -c -z -f $HERE/device.tar.gz system assets hardware.yaml
|
||||||
|
)
|
||||||
|
|
||||||
|
# now build the azure device tarball by adding walinuxagent
|
||||||
|
if [ -e binary/boot/filesystem.dir/var/lib/dpkg/info/walinuxagent.list ];
|
||||||
|
then
|
||||||
|
(
|
||||||
|
cd binary/boot/filesystem.dir
|
||||||
|
while read line; do
|
||||||
|
line=$(echo $line |cut -d/ -f2-)
|
||||||
|
if [ -e "$line" ] && [ ! -d "$line" ]; then
|
||||||
|
cp -ar --parent $line $TMPDIR/system
|
||||||
|
fi
|
||||||
|
done < var/lib/dpkg/info/walinuxagent.list
|
||||||
|
# created by walinuxagent postinst/dh-systemd
|
||||||
|
cp -ar --parent var/lib/systemd/deb-systemd-helper-enabled/walinuxagent* $TMPDIR/system
|
||||||
|
cp -ar --parent etc/systemd/system/multi-user.target.wants/walinuxagent* $TMPDIR/system
|
||||||
|
mkdir -p $TMPDIR/system/var/lib/waagent
|
||||||
|
)
|
||||||
|
# and tar it up
|
||||||
|
(
|
||||||
|
cd $TMPDIR
|
||||||
|
tar -c -z -f $HERE/device-azure.tar.gz system assets hardware.yaml
|
||||||
|
)
|
||||||
|
fi
|
||||||
|
rm -rf $TMPDIR
|
||||||
|
|
||||||
|
# remove files from the root filesystem
|
||||||
|
(cd binary/boot/filesystem.dir
|
||||||
|
rm -f boot/vmlinu?-*
|
||||||
|
rm -f boot/initrd.img-*
|
||||||
|
rm -f boot/abi-*
|
||||||
|
rm -f boot/System.map-*
|
||||||
|
rm -f initrd.img
|
||||||
|
rm -f vmlinu?
|
||||||
|
rm -rf lib/modules
|
||||||
|
rm -rf lib/firmware
|
||||||
|
# remove walinuxagent
|
||||||
|
if [ -e var/lib/dpkg/info/walinuxagent.list ]; then
|
||||||
|
chroot . dpkg --purge walinuxagent || true
|
||||||
|
fi
|
||||||
|
)
|
||||||
@ -0,0 +1,52 @@
|
|||||||
|
#!/bin/sh -eu
|
||||||
|
|
||||||
|
ERRCNT=""
|
||||||
|
|
||||||
|
passwd_hash=$(set -- $(md5sum /etc/passwd) && echo $1)
|
||||||
|
shadow_hash=$(set -- $(cat /etc/shadow | sed "s/:.*:0:99999:/:0:99999:/g" | md5sum) && echo $1)
|
||||||
|
group_length=$(cat /etc/group | wc -l)
|
||||||
|
gshadow_length=$(cat /etc/gshadow | wc -l)
|
||||||
|
|
||||||
|
passwd_orig_hash=$(set -- $(md5sum /etc/passwd.orig) && echo $1)
|
||||||
|
shadow_orig_hash=$(set -- $(cat /etc/shadow.orig | sed "s/:.*:0:99999:/:0:99999:/g" | md5sum) && echo $1)
|
||||||
|
group_orig_length=$(cat /etc/group.orig | wc -l)
|
||||||
|
gshadow_orig_length=$(cat /etc/gshadow.orig | wc -l)
|
||||||
|
|
||||||
|
if [ "$passwd_hash" != "$passwd_orig_hash" ]; then
|
||||||
|
echo "/etc/passwd has changed during setup." >&2
|
||||||
|
echo "The new /etc/passwd md5sum is: $passwd_hash" >&2
|
||||||
|
diff -Nrup /etc/passwd.orig /etc/passwd >&2 || true
|
||||||
|
ERRCNT=1
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [ "$shadow_hash" != "$shadow_orig_hash" ]; then
|
||||||
|
echo "/etc/shadow has changed during setup." >&2
|
||||||
|
echo "The new /etc/shadow md5sum is: $shadow_hash" >&2
|
||||||
|
diff -Nrup /etc/shadow.orig /etc/shadow >&2 || true
|
||||||
|
ERRCNT=1
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [ "$group_length" != "$group_orig_length" ]; then
|
||||||
|
echo "/etc/group has changed during setup." >&2
|
||||||
|
diff -Nrup /etc/group.orig /etc/group >&2 || true
|
||||||
|
ERRCNT=1
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [ "$gshadow_length" != "$gshadow_orig_length" ]; then
|
||||||
|
echo "/etc/gshadow has changed during setup." >&2
|
||||||
|
diff -Nrup /etc/gshadow.orig /etc/gshadow >&2 || true
|
||||||
|
ERRCNT=1
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [ -n "$ERRCNT" ]; then
|
||||||
|
echo "There were changes to the password database," >&2
|
||||||
|
echo "please adjust the values in the livecd-rootfs source in the file:" >&2
|
||||||
|
echo "live-build/ubuntu-core/hooks/00-uid-gid-fix.chroot_early" >&2
|
||||||
|
echo >&2
|
||||||
|
echo "Please check also if a maintainer script of the package" >&2
|
||||||
|
echo "that added these entries perhaps created a home directory and," >&2
|
||||||
|
echo "if needed, add code for creation of it to the above hook" >&2
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
|
||||||
|
rm /etc/passwd.orig /etc/shadow.orig /etc/group.orig /etc/gshadow.orig
|
||||||
Loading…
Reference in new issue