Chmod error changing permission read only file systemHow to make read-only file system writable?“system reserved” windows partition showed on ubuntu 12.04. Not installed using wubiELI5: Resizing PartitionsGoogle Cloud VM memory is being used up 100%How to set read+executable permission in internal drive when chmod 777 * is not working?
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Chmod error changing permission read only file system
How to make read-only file system writable?“system reserved” windows partition showed on ubuntu 12.04. Not installed using wubiELI5: Resizing PartitionsGoogle Cloud VM memory is being used up 100%How to set read+executable permission in internal drive when chmod 777 * is not working?
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6
I have three main partitions on my disc /dev/sda:
/dev/sda1 2048 117186559 58592256 83 Linux
/dev/sda2 117186560 128905215 5859328 82 Linux swap / Solaris
/dev/sda3 * 128905216 324216831 97655808 7 HPFS/NTFS/exFAT
/dev/sda4 324216832 1250263039 463023104 b W95 FAT32
/dev/sda3 is a Windows 7 partition and /dev/sda4 is a FAT32 partition where I keep my data. My problem is that yesterday I can't write on /dev/sda4 and when I tried to change the file permissions I get an error:
$ sudo chmod 777 /media/fourat/74A7-A44E/
chmod: changing permissions of ‘74A7-A44E/’: Read-only file system
mount output:
/dev/sda1 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)
systemd on /sys/fs/cgroup/systemd type cgroup (rw,noexec,nosuid,nodev,none,name=systemd)
gvfsd-fuse on /run/user/1000/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,user=fourat)
/dev/sda4 on /media/fourat/74A7-A44E type vfat (rw,nosuid,nodev,uid=1000,gid=1000,shortname=mixed,dmask=0077,utf8=1,showexec,flush,uhelper=udisks2)
Please help. Thanks
SOLVED: thanks to mikewhatever
Remounting the partition with
sudo mount -o remount,rw /dev/sda4
14.04 partitioning permissions chmod
edited Aug 12 at 7:15
RtmY
1255 bronze badges
asked Jan 11 '15 at 18:59
FouratFourat
1411 gold badge1 silver badge6 bronze badges
add a comment
|
6
I have three main partitions on my disc /dev/sda:
/dev/sda1 2048 117186559 58592256 83 Linux
/dev/sda2 117186560 128905215 5859328 82 Linux swap / Solaris
/dev/sda3 * 128905216 324216831 97655808 7 HPFS/NTFS/exFAT
/dev/sda4 324216832 1250263039 463023104 b W95 FAT32
/dev/sda3 is a Windows 7 partition and /dev/sda4 is a FAT32 partition where I keep my data. My problem is that yesterday I can't write on /dev/sda4 and when I tried to change the file permissions I get an error:
$ sudo chmod 777 /media/fourat/74A7-A44E/
chmod: changing permissions of ‘74A7-A44E/’: Read-only file system
mount output:
/dev/sda1 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)
systemd on /sys/fs/cgroup/systemd type cgroup (rw,noexec,nosuid,nodev,none,name=systemd)
gvfsd-fuse on /run/user/1000/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,user=fourat)
/dev/sda4 on /media/fourat/74A7-A44E type vfat (rw,nosuid,nodev,uid=1000,gid=1000,shortname=mixed,dmask=0077,utf8=1,showexec,flush,uhelper=udisks2)
Please help. Thanks
SOLVED: thanks to mikewhatever
Remounting the partition with
sudo mount -o remount,rw /dev/sda4
14.04 partitioning permissions chmod
edited Aug 12 at 7:15
RtmY
1255 bronze badges
asked Jan 11 '15 at 18:59
FouratFourat
1411 gold badge1 silver badge6 bronze badges
There's nothing in your question that shows us the location of '74A7-A44E'. Please update your question with the output ofmountand where the directory you cannot change permissions of actually is.
– Marcin Kaminski
Jan 11 '15 at 19:05
Are you trying to apply chmod command on a file that exists on USB?
– Wolverine
Jan 11 '15 at 19:15
3
If a filesystem is read only, you need to re-mount it as rw -sudo mount -o remount,rw /dev/sda4, and not hammer it with chmod. The cause of such errors is usually filesystem corruption, so you'll need to check it for errors in Windows.
– mikewhatever
Jan 11 '15 at 19:17
If I'm not mistaken, FAT partitions don't have 'permissions'. Instead ofchmod, you could just give your user permission to access the files withmount/fstab.
– earthmeLon
Jan 12 '15 at 18:37
4
Possible duplicate of How to make read-only file system writable?
– Zanna
Mar 7 '17 at 7:14
add a comment
|
6
6
6
2
I have three main partitions on my disc /dev/sda:
/dev/sda1 2048 117186559 58592256 83 Linux
/dev/sda2 117186560 128905215 5859328 82 Linux swap / Solaris
/dev/sda3 * 128905216 324216831 97655808 7 HPFS/NTFS/exFAT
/dev/sda4 324216832 1250263039 463023104 b W95 FAT32
/dev/sda3 is a Windows 7 partition and /dev/sda4 is a FAT32 partition where I keep my data. My problem is that yesterday I can't write on /dev/sda4 and when I tried to change the file permissions I get an error:
$ sudo chmod 777 /media/fourat/74A7-A44E/
chmod: changing permissions of ‘74A7-A44E/’: Read-only file system
mount output:
/dev/sda1 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)
systemd on /sys/fs/cgroup/systemd type cgroup (rw,noexec,nosuid,nodev,none,name=systemd)
gvfsd-fuse on /run/user/1000/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,user=fourat)
/dev/sda4 on /media/fourat/74A7-A44E type vfat (rw,nosuid,nodev,uid=1000,gid=1000,shortname=mixed,dmask=0077,utf8=1,showexec,flush,uhelper=udisks2)
Please help. Thanks
SOLVED: thanks to mikewhatever
Remounting the partition with
sudo mount -o remount,rw /dev/sda4
14.04 partitioning permissions chmod
edited Aug 12 at 7:15
RtmY
1255 bronze badges
asked Jan 11 '15 at 18:59
FouratFourat
1411 gold badge1 silver badge6 bronze badges
I have three main partitions on my disc /dev/sda:
/dev/sda1 2048 117186559 58592256 83 Linux
/dev/sda2 117186560 128905215 5859328 82 Linux swap / Solaris
/dev/sda3 * 128905216 324216831 97655808 7 HPFS/NTFS/exFAT
/dev/sda4 324216832 1250263039 463023104 b W95 FAT32
/dev/sda3 is a Windows 7 partition and /dev/sda4 is a FAT32 partition where I keep my data. My problem is that yesterday I can't write on /dev/sda4 and when I tried to change the file permissions I get an error:
$ sudo chmod 777 /media/fourat/74A7-A44E/
chmod: changing permissions of ‘74A7-A44E/’: Read-only file system
mount output:
/dev/sda1 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)
systemd on /sys/fs/cgroup/systemd type cgroup (rw,noexec,nosuid,nodev,none,name=systemd)
gvfsd-fuse on /run/user/1000/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,user=fourat)
/dev/sda4 on /media/fourat/74A7-A44E type vfat (rw,nosuid,nodev,uid=1000,gid=1000,shortname=mixed,dmask=0077,utf8=1,showexec,flush,uhelper=udisks2)
Please help. Thanks
SOLVED: thanks to mikewhatever
Remounting the partition with
sudo mount -o remount,rw /dev/sda4
14.04 partitioning permissions chmod
14.04 partitioning permissions chmod
edited Aug 12 at 7:15
RtmY
1255 bronze badges
asked Jan 11 '15 at 18:59
FouratFourat
1411 gold badge1 silver badge6 bronze badges
edited Aug 12 at 7:15
RtmY
1255 bronze badges
asked Jan 11 '15 at 18:59
FouratFourat
1411 gold badge1 silver badge6 bronze badges
edited Aug 12 at 7:15
RtmY
1255 bronze badges
edited Aug 12 at 7:15
RtmY
1255 bronze badges
edited Aug 12 at 7:15
RtmY
1255 bronze badges
1255 bronze badges
asked Jan 11 '15 at 18:59
FouratFourat
1411 gold badge1 silver badge6 bronze badges
asked Jan 11 '15 at 18:59
FouratFourat
1411 gold badge1 silver badge6 bronze badges
asked Jan 11 '15 at 18:59
FouratFourat
1411 gold badge1 silver badge6 bronze badges
1411 gold badge1 silver badge6 bronze badges
There's nothing in your question that shows us the location of '74A7-A44E'. Please update your question with the output ofmountand where the directory you cannot change permissions of actually is.
– Marcin Kaminski
Jan 11 '15 at 19:05
Are you trying to apply chmod command on a file that exists on USB?
– Wolverine
Jan 11 '15 at 19:15
3
If a filesystem is read only, you need to re-mount it as rw -sudo mount -o remount,rw /dev/sda4, and not hammer it with chmod. The cause of such errors is usually filesystem corruption, so you'll need to check it for errors in Windows.
– mikewhatever
Jan 11 '15 at 19:17
If I'm not mistaken, FAT partitions don't have 'permissions'. Instead ofchmod, you could just give your user permission to access the files withmount/fstab.
– earthmeLon
Jan 12 '15 at 18:37
4
Possible duplicate of How to make read-only file system writable?
– Zanna
Mar 7 '17 at 7:14
add a comment
|
There's nothing in your question that shows us the location of '74A7-A44E'. Please update your question with the output ofmountand where the directory you cannot change permissions of actually is.
– Marcin Kaminski
Jan 11 '15 at 19:05
Are you trying to apply chmod command on a file that exists on USB?
– Wolverine
Jan 11 '15 at 19:15
3
If a filesystem is read only, you need to re-mount it as rw -sudo mount -o remount,rw /dev/sda4, and not hammer it with chmod. The cause of such errors is usually filesystem corruption, so you'll need to check it for errors in Windows.
– mikewhatever
Jan 11 '15 at 19:17
If I'm not mistaken, FAT partitions don't have 'permissions'. Instead ofchmod, you could just give your user permission to access the files withmount/fstab.
– earthmeLon
Jan 12 '15 at 18:37
4
Possible duplicate of How to make read-only file system writable?
– Zanna
Mar 7 '17 at 7:14
There's nothing in your question that shows us the location of '74A7-A44E'. Please update your question with the output of
mount and where the directory you cannot change permissions of actually is.– Marcin Kaminski
Jan 11 '15 at 19:05
There's nothing in your question that shows us the location of '74A7-A44E'. Please update your question with the output of
mount and where the directory you cannot change permissions of actually is.– Marcin Kaminski
Jan 11 '15 at 19:05
Are you trying to apply chmod command on a file that exists on USB?
– Wolverine
Jan 11 '15 at 19:15
Are you trying to apply chmod command on a file that exists on USB?
– Wolverine
Jan 11 '15 at 19:15
3
3
If a filesystem is read only, you need to re-mount it as rw -
sudo mount -o remount,rw /dev/sda4, and not hammer it with chmod. The cause of such errors is usually filesystem corruption, so you'll need to check it for errors in Windows.– mikewhatever
Jan 11 '15 at 19:17
If a filesystem is read only, you need to re-mount it as rw -
sudo mount -o remount,rw /dev/sda4, and not hammer it with chmod. The cause of such errors is usually filesystem corruption, so you'll need to check it for errors in Windows.– mikewhatever
Jan 11 '15 at 19:17
If I'm not mistaken, FAT partitions don't have 'permissions'. Instead of
chmod, you could just give your user permission to access the files with mount/fstab.– earthmeLon
Jan 12 '15 at 18:37
If I'm not mistaken, FAT partitions don't have 'permissions'. Instead of
chmod, you could just give your user permission to access the files with mount/fstab.– earthmeLon
Jan 12 '15 at 18:37
4
4
Possible duplicate of How to make read-only file system writable?
– Zanna
Mar 7 '17 at 7:14
Possible duplicate of How to make read-only file system writable?
– Zanna
Mar 7 '17 at 7:14
add a comment
|
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There's nothing in your question that shows us the location of '74A7-A44E'. Please update your question with the output of
mountand where the directory you cannot change permissions of actually is.– Marcin Kaminski
Jan 11 '15 at 19:05
Are you trying to apply chmod command on a file that exists on USB?
– Wolverine
Jan 11 '15 at 19:15
3
If a filesystem is read only, you need to re-mount it as rw -
sudo mount -o remount,rw /dev/sda4, and not hammer it with chmod. The cause of such errors is usually filesystem corruption, so you'll need to check it for errors in Windows.– mikewhatever
Jan 11 '15 at 19:17
If I'm not mistaken, FAT partitions don't have 'permissions'. Instead of
chmod, you could just give your user permission to access the files withmount/fstab.– earthmeLon
Jan 12 '15 at 18:37
4
Possible duplicate of How to make read-only file system writable?
– Zanna
Mar 7 '17 at 7:14