web-dev-qa-db-ja.com

出力ファイルを開けませんでした：読み取り専用ファイルシステム

Ubuntuをインストールしました。私の問題は、ログファイルを自宅に書き込もうとしていることです。 logcatというpythonモジュールのadbを使用しています。端末コマンドadb logcat -f <path>を試行すると、このログをハードドライブ上のテキストファイルに出力できるはずですが、代わりにエラーが表示されます。

couldn't open output file: Read-only file system

これは、コマンドSudo adb logcat -f <path>の試行にもかかわらずです。 <path>については、主に 'log'と 'log.txt'のみを試しています。

cat >を使用してディスクにファイルを書き込むことができ、問題なくファイルを保存できます。これはハードディスクの故障が原因である可能性があることを読みましたが、これまでのところ、これに関する他の証拠は見ていません。これがなぜ起こっているのか、そしてそれをどのように克服するのかを理解する助けは大歓迎です。誰かが疑問に思っている場合、このファイルをディスクに出力するために必要なのはです。

編集：

私は実際に私のスワップパーティションに問題があったことを言及する必要があります。起動中にスプラッシュ画面で/dev/mapper/cryptswap1 is not ready yet or not present（正確な表現ではない）のチューニングにエラーが発生していましたが、エラーを取り除いた新しいスワップパーティションを再フォーマットして作成しました。ただし、問題に気付く前と現在の両方で、gpartedはスワップパーティションに「不明」のラベルを付けます。 free -mは問題を示さず、swapon -sも表示しません

編集：Sudo mountの出力

/dev/sda5 on / type ext4 (rw,errors=remount-ro)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
none on /sys/fs/cgroup type tmpfs (rw)
none on /sys/fs/Fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
udev on /dev type devtmpfs (rw,mode=0755)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
none on /run/shm type tmpfs (rw,nosuid,nodev)
none on /run/user type tmpfs (rw,noexec,nosuid,nodev,size=104857600,mode=0755)
none on /sys/fs/pstore type pstore (rw)
/dev/sda7 on /home type ext4 (rw)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
systemd on /sys/fs/cgroup/systemd type cgroup (rw,noexec,nosuid,nodev,none,name=systemd)
/home/me/.Private on /home/me type ecryptfs (ecryptfs_check_dev_ruid,ecryptfs_cipher=aes,ecryptfs_key_bytes=16,ecryptfs_unlink_sigs,ecryptfs_sig=cbb0ed41b9f457c5,ecryptfs_fnek_sig=9e985b7d47d6e940)
gvfsd-Fuse on /run/user/1000/gvfs type Fuse.gvfsd-Fuse (rw,nosuid,nodev,user=me)

apt-cache policy 'sytemd*'の出力：

Version table:
 *** 204-0ubuntu19.1 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy-updates/main AMD64 Packages
        100 /var/lib/dpkg/status
     204-0ubuntu18 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
root-system-bin:
  Installed: (none)
  Candidate: 5.34.09-1
  Version table:
     5.34.09-1 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/universe AMD64 Packages
libboost-filesystem1.50-dev:
  Installed: (none)
  Candidate: (none)
  Version table:
libmono-system-data4.0-cil:
  Installed: (none)
  Candidate: 2.10.8.1-5ubuntu2
  Version table:
     2.10.8.1-5ubuntu2 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
libmono-system-runtime4.0-cil:
  Installed: (none)
  Candidate: 2.10.8.1-5ubuntu2
  Version table:
     2.10.8.1-5ubuntu2 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
libmono-system-windows-forms4.0-cil:
  Installed: (none)
  Candidate: 2.10.8.1-5ubuntu2
  Version table:
     2.10.8.1-5ubuntu2 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
qemu-system-or32:
  Installed: (none)
  Candidate: (none)
  Version table:
xen-system:
  Installed: (none)
  Candidate: (none)
  Version table:
libmono-system2.0-cil:
  Installed: (none)
  Candidate: 2.10.8.1-5ubuntu2
  Version table:
     2.10.8.1-5ubuntu2 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
libsystemu-Ruby1.8:
  Installed: (none)
  Candidate: 2.5.1-1
  Version table:
     2.5.1-1 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/universe AMD64 Packages
system-image-dev:
  Installed: (none)
  Candidate: 1.9.1-0ubuntu1
  Version table:
     1.9.1-0ubuntu1 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/universe AMD64 Packages
libsystemsettings1:
  Installed: (none)
  Candidate: 0.1+13.10.20131015.2-0ubuntu1
  Version table:
     0.1+13.10.20131015.2-0ubuntu1 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/universe AMD64 Packages
xen-linux-system-686-pae:
  Installed: (none)
  Candidate: (none)
  Version table:
libmono-system-data-linq4.0-cil:
  Installed: (none)
  Candidate: 2.10.8.1-5ubuntu2
  Version table:
     2.10.8.1-5ubuntu2 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
ubuntu-system-service:
  Installed: 0.2.5
  Candidate: 0.2.5
  Version table:
 *** 0.2.5 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
        100 /var/lib/dpkg/status
qemu-system-s390x:
  Installed: (none)
  Candidate: (none)
  Version table:
libboost-filesystem1.53.0:
  Installed: (none)
  Candidate: 1.53.0-6+exp3ubuntu8
  Version table:
     1.53.0-6+exp3ubuntu8 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
libmono-system-runtime-serialization4.0-cil:
  Installed: (none)
  Candidate: 2.10.8.1-5ubuntu2
  Version table:
     2.10.8.1-5ubuntu2 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
qemu-system-ppcemb:
  Installed: (none)
  Candidate: (none)
  Version table:
libmono-system-ldap4.0-cil:
  Installed: (none)
  Candidate: 2.10.8.1-5ubuntu2
  Version table:
     2.10.8.1-5ubuntu2 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
systemc:
  Installed: (none)
  Candidate: (none)
  Version table:
system-config-printer:
  Installed: (none)
  Candidate: (none)
  Version table:
systemd:
  Installed: (none)
  Candidate: (none)
  Version table:
qemu-system-sh4:
  Installed: (none)
  Candidate: (none)
  Version table:
xen-linux-system-AMD64:
  Installed: (none)
  Candidate: (none)
  Version table:
qemu-system-xtensa:
  Installed: (none)
  Candidate: (none)
  Version table:
libmono-system-transactions4.0-cil:
  Installed: (none)
  Candidate: 2.10.8.1-5ubuntu2
  Version table:
     2.10.8.1-5ubuntu2 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
libghc-system-fileio-prof-0.3.10-17c22:
  Installed: (none)
  Candidate: (none)
  Version table:
libmono-system-windows-forms-datavisualization4.0-cil:
  Installed: (none)
  Candidate: 2.10.8.1-5ubuntu2
  Version table:
     2.10.8.1-5ubuntu2 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
libghc-system-filepath-prof:
  Installed: (none)
  Candidate: 0.4.7-2build1
  Version table:
     0.4.7-2build1 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/universe AMD64 Packages
libqtsysteminfo1:
  Installed: (none)
  Candidate: 1.2.0-3ubuntu5
  Version table:
     1.2.0-3ubuntu5 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/universe AMD64 Packages
system-tools-backends-dev:
  Installed: (none)
  Candidate: 2.10.2-1ubuntu1
  Version table:
     2.10.2-1ubuntu1 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/universe AMD64 Packages
libboost-system1.52-dev:
  Installed: (none)
  Candidate: (none)
  Version table:
system-config-samba:
  Installed: (none)
  Candidate: 1.2.63-0ubuntu5
  Version table:
     1.2.63-0ubuntu5 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/universe AMD64 Packages
libmono-system-security4.0-cil:
  Installed: (none)
  Candidate: 2.10.8.1-5ubuntu2
  Version table:
     2.10.8.1-5ubuntu2 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
libboost-filesystem1.46-dev:
  Installed: (none)
  Candidate: (none)
  Version table:
libghc-filesystem-conduit-doc:
  Installed: (none)
  Candidate: 1.0.0-2build1
  Version table:
     1.0.0-2build1 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/universe AMD64 Packages
root-system-common:
  Installed: (none)
  Candidate: 5.34.09-1
  Version table:
     5.34.09-1 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/universe AMD64 Packages
system-config-printer-gnome:
  Installed: 1.4.2+20130920-0ubuntu1.2
  Candidate: 1.4.2+20130920-0ubuntu1.2
  Version table:
 *** 1.4.2+20130920-0ubuntu1.2 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy-updates/main AMD64 Packages
        100 /var/lib/dpkg/status
     1.4.2+20130920-0ubuntu1 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
libmono-system-servicemodel-routing4.0-cil:
  Installed: (none)
  Candidate: 2.10.8.1-5ubuntu2
  Version table:
     2.10.8.1-5ubuntu2 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
qemu-system-ppc64:
  Installed: (none)
  Candidate: (none)
  Version table:
libmono-system-web-abstractions4.0-cil:
  Installed: (none)
  Candidate: 2.10.8.1-5ubuntu2
  Version table:
     2.10.8.1-5ubuntu2 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
libmono-system-xaml4.0-cil:
  Installed: (none)
  Candidate: 2.10.8.1-5ubuntu2
  Version table:
     2.10.8.1-5ubuntu2 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
liblua5.1-filesystem0:
  Installed: (none)
  Candidate: 1.5.0+16+g84f1af5-1
  Version table:
     1.5.0+16+g84f1af5-1 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/universe AMD64 Packages
system-tools-backends:
  Installed: (none)
  Candidate: 2.10.2-1ubuntu1
  Version table:
     2.10.2-1ubuntu1 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/universe AMD64 Packages
qemu-system-x86:
  Installed: (none)
  Candidate: 1.5.0+dfsg-3ubuntu5.3
  Version table:
     1.5.0+dfsg-3ubuntu5.3 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy-updates/main AMD64 Packages
        500 http://security.ubuntu.com/ubuntu/ saucy-security/main AMD64 Packages
     1.5.0+dfsg-3ubuntu5 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
system-config-printer-kde:
  Installed: (none)
  Candidate: (none)
  Version table:
init-system-helpers:
  Installed: 1.7
  Candidate: 1.7
  Version table:
 *** 1.7 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
        100 /var/lib/dpkg/status
systemd-shim:
  Installed: 6-0ubuntu0.13.10
  Candidate: 6-0ubuntu0.13.10
  Version table:
 *** 6-0ubuntu0.13.10 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy-updates/main AMD64 Packages
        100 /var/lib/dpkg/status
     3+real-0ubuntu1 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
libghc-system-fileio-doc:
  Installed: (none)
  Candidate: 0.3.10-2build1
  Version table:
     0.3.10-2build1 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/universe AMD64 Packages
systemtap-grapher:
  Installed: (none)
  Candidate: (none)
  Version table:
libmono-system-enterpriseservices4.0-cil:
  Installed: (none)
  Candidate: 2.10.8.1-5ubuntu2
  Version table:
     2.10.8.1-5ubuntu2 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
libghc-system-filepath-dev-0.4.7-c7b27:
  Installed: (none)
  Candidate: (none)
  Version table:
qemu-system-x86-64:
  Installed: (none)
  Candidate: (none)
  Version table:
system-config-printer-udev:
  Installed: 1.4.2+20130920-0ubuntu1.2
  Candidate: 1.4.2+20130920-0ubuntu1.2
  Version table:
 *** 1.4.2+20130920-0ubuntu1.2 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy-updates/main AMD64 Packages
        100 /var/lib/dpkg/status
     1.4.2+20130920-0ubuntu1 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
libsystem-command-Perl:
  Installed: (none)
  Candidate: 1.09-1
  Version table:
     1.09-1 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/universe AMD64 Packages
libboost-system1.42-dev:
  Installed: (none)
  Candidate: (none)
  Version table:
qemu-system:
  Installed: (none)
  Candidate: 1.5.0+dfsg-3ubuntu5.3
  Version table:
     1.5.0+dfsg-3ubuntu5.3 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy-updates/main AMD64 Packages
        500 http://security.ubuntu.com/ubuntu/ saucy-security/main AMD64 Packages
     1.5.0+dfsg-3ubuntu5 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
systemtap-doc:
  Installed: (none)
  Candidate: 2.2.1-1ubuntu1
  Version table:
     2.2.1-1ubuntu1 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
libboost-system1.48-dev:
  Installed: (none)
  Candidate: (none)
  Version table:
lua5.2-filesystem-dev:
  Installed: (none)
  Candidate: (none)
  Version table:
system-config-kickstart:
  Installed: (none)
  Candidate: 2.5.20-0ubuntu22
  Version table:
     2.5.20-0ubuntu22 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
live-config-systemd:
  Installed: (none)
  Candidate: 3.0.23-1
  Version table:
     3.0.23-1 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/universe AMD64 Packages
systemtap:
  Installed: (none)
  Candidate: 2.2.1-1ubuntu1
  Version table:
     2.2.1-1ubuntu1 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/universe AMD64 Packages
libsystemd-login-dev:
  Installed: (none)
  Candidate: 204-0ubuntu19.1
  Version table:
     204-0ubuntu19.1 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy-updates/main AMD64 Packages
     204-0ubuntu18 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
x-window-system:
  Installed: (none)
  Candidate: (none)
  Version table:
qemu-system-mips64el:
  Installed: (none)
  Candidate: (none)
  Version table:
libsystemu-Ruby-doc:
  Installed: (none)
  Candidate: 2.5.1-1
  Version table:
     2.5.1-1 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/universe AMD64 Packages
xen-system-AMD64:
  Installed: (none)
  Candidate: 4.3.0-1ubuntu1.3
  Version table:
     4.3.0-1ubuntu1.3 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy-updates/universe AMD64 Packages
        500 http://security.ubuntu.com/ubuntu/ saucy-security/universe AMD64 Packages
     4.3.0-1ubuntu1 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/universe AMD64 Packages
qemu-system-sparc:
  Installed: (none)
  Candidate: 1.5.0+dfsg-3ubuntu5.3
  Version table:
     1.5.0+dfsg-3ubuntu5.3 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy-updates/main AMD64 Packages
        500 http://security.ubuntu.com/ubuntu/ saucy-security/main AMD64 Packages
     1.5.0+dfsg-3ubuntu5 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
xen-linux-system-686:
  Installed: (none)
  Candidate: (none)
  Version table:
gnome-system-log:
  Installed: 3.8.1-1svn1
  Candidate: 3.8.1-1svn1
  Version table:
 *** 3.8.1-1svn1 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
        100 /var/lib/dpkg/status
libmono-system4.0-cil:
  Installed: (none)
  Candidate: 2.10.8.1-5ubuntu2
  Version table:
     2.10.8.1-5ubuntu2 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
libqt5systeminfo5:
  Installed: (none)
  Candidate: 5.0~git20130712-0ubuntu3
  Version table:
     5.0~git20130712-0ubuntu3 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/universe AMD64 Packages
libmono-system-xml-linq4.0-cil:
  Installed: (none)
  Candidate: 2.10.8.1-5ubuntu2
  Version table:
     2.10.8.1-5ubuntu2 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
qtdeclarative5-systeminfo-plugin:
  Installed: (none)
  Candidate: 5.0~git20130712-0ubuntu3
  Version table:
     5.0~git20130712-0ubuntu3 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/universe AMD64 Packages
xen-system-i386:
  Installed: (none)
  Candidate: (none)
  Version table:
libmono-system-configuration4.0-cil:
  Installed: (none)
  Candidate: 2.10.8.1-5ubuntu2
  Version table:
     2.10.8.1-5ubuntu2 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
libboost-system1.53-dev:
  Installed: (none)
  Candidate: 1.53.0-6+exp3ubuntu8
  Version table:
     1.53.0-6+exp3ubuntu8 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
qemu-system-m68k:
  Installed: (none)
  Candidate: (none)
  Version table:
qemu-system-mips:
  Installed: (none)
  Candidate: 1.5.0+dfsg-3ubuntu5.3
  Version table:
     1.5.0+dfsg-3ubuntu5.3 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy-updates/main AMD64 Packages
        500 http://security.ubuntu.com/ubuntu/ saucy-security/main AMD64 Packages
     1.5.0+dfsg-3ubuntu5 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
libfsosystem-dbg:
  Installed: (none)
  Candidate: (none)
  Version table:
libmono-system-numerics4.0-cil:
  Installed: (none)
  Candidate: 2.10.8.1-5ubuntu2
  Version table:
     2.10.8.1-5ubuntu2 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
libmono-system-data-services4.0-cil:
  Installed: (none)
  Candidate: 2.10.8.1-5ubuntu2
  Version table:
     2.10.8.1-5ubuntu2 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
qemu-system-i386:
  Installed: (none)
  Candidate: (none)
  Version table:
qemu-system-misc:
  Installed: (none)
  Candidate: 1.5.0+dfsg-3ubuntu5.3
  Version table:
     1.5.0+dfsg-3ubuntu5.3 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy-updates/main AMD64 Packages
        500 http://security.ubuntu.com/ubuntu/ saucy-security/main AMD64 Packages
     1.5.0+dfsg-3ubuntu5 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/main AMD64 Packages
libghc-system-filepath-dev:
  Installed: (none)
  Candidate: 0.4.7-2build1
  Version table:
     0.4.7-2build1 0
        500 http://ie.archive.ubuntu.com/ubuntu/ saucy/universe AMD64 Packages
command-linepermissionspythonfilesystemgnome-terminal
3
Totem

回避策として、-fオプションを使用する代わりに、出力を自分でリダイレクトすることができます。

adb logcat > log

プログラムが作業ディレクトリを変更し、書き込みアクセス権のない場所にlogを作成しようとしているのではないかと推測しています。その場合、絶対パスを使用して動作させることもできるはずです：

adb logcat > /home/username/log
2
terdon