Can a UBIFS be set as ACL?
Running Debian Buster on Kernel 4.20.17 with systemd 241:
+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN -PCRE2 default-hierarchy=hybrid
I have two ubifs volumes on a nand (/dev/mtd3) partition:
ubi0:rootfs on / type ubifs (ro,relatime,assert=read-only,ubi=0,vol=1)
/dev/ubi0_2 on /var type ubifs (rw,relatime,assert=read-only,ubi=0,vol=2)
and I get the following error:
systemd-journald[747]: Failed to set ACL on /var/log/journal/2f572c0abab24e2fafc1b969aba78f1f/user-1000.journal, ignoring: Operation not supported
Can I set UBIFS as ACL and if so how do I tweak my fstab to enable it?
/dev/ubi0_2 /var ubifs defaults,auto 0 0
acl systemd-journald ubifs
asked 3 hours ago
cajjedcajjed
388
add a comment |
Running Debian Buster on Kernel 4.20.17 with systemd 241:
+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN -PCRE2 default-hierarchy=hybrid
I have two ubifs volumes on a nand (/dev/mtd3) partition:
ubi0:rootfs on / type ubifs (ro,relatime,assert=read-only,ubi=0,vol=1)
/dev/ubi0_2 on /var type ubifs (rw,relatime,assert=read-only,ubi=0,vol=2)
and I get the following error:
systemd-journald[747]: Failed to set ACL on /var/log/journal/2f572c0abab24e2fafc1b969aba78f1f/user-1000.journal, ignoring: Operation not supported
Can I set UBIFS as ACL and if so how do I tweak my fstab to enable it?
/dev/ubi0_2 /var ubifs defaults,auto 0 0
acl systemd-journald ubifs
asked 3 hours ago
cajjedcajjed
388
add a comment |
Running Debian Buster on Kernel 4.20.17 with systemd 241:
+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN -PCRE2 default-hierarchy=hybrid
I have two ubifs volumes on a nand (/dev/mtd3) partition:
ubi0:rootfs on / type ubifs (ro,relatime,assert=read-only,ubi=0,vol=1)
/dev/ubi0_2 on /var type ubifs (rw,relatime,assert=read-only,ubi=0,vol=2)
and I get the following error:
systemd-journald[747]: Failed to set ACL on /var/log/journal/2f572c0abab24e2fafc1b969aba78f1f/user-1000.journal, ignoring: Operation not supported
Can I set UBIFS as ACL and if so how do I tweak my fstab to enable it?
/dev/ubi0_2 /var ubifs defaults,auto 0 0
acl systemd-journald ubifs
asked 3 hours ago
cajjedcajjed
388
Running Debian Buster on Kernel 4.20.17 with systemd 241:
+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN -PCRE2 default-hierarchy=hybrid
I have two ubifs volumes on a nand (/dev/mtd3) partition:
ubi0:rootfs on / type ubifs (ro,relatime,assert=read-only,ubi=0,vol=1)
/dev/ubi0_2 on /var type ubifs (rw,relatime,assert=read-only,ubi=0,vol=2)
and I get the following error:
systemd-journald[747]: Failed to set ACL on /var/log/journal/2f572c0abab24e2fafc1b969aba78f1f/user-1000.journal, ignoring: Operation not supported
Can I set UBIFS as ACL and if so how do I tweak my fstab to enable it?
/dev/ubi0_2 /var ubifs defaults,auto 0 0
acl systemd-journald ubifs
acl systemd-journald ubifs
asked 3 hours ago
cajjedcajjed
388
asked 3 hours ago
cajjedcajjed
388
asked 3 hours ago
cajjedcajjed
388
asked 3 hours ago
cajjedcajjed
388
asked 3 hours ago
cajjedcajjed
388
388
add a comment |
add a comment |
1 Answer
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No, according to the UBIFS documentation, ACL support is not implemented in UBIFS:
Extended attributes
UBIFS supports extended attributes if the corresponding configuration
option is enabled (no additional mount options are required). It
supports the user, trusted, and security name-spaces. However, access
control lists (ACL) support is not implemented.
Note, currently mkfs.ubifs ignores extended attributes and does not
write them to the target file-system image.
Likewise, the kernel source states that ACL support is not implemented.
Filesystems implementing ACL usually have an acl.c file in sources. JFFS2 has such a file and supports ACLs (eg: its mkfs.jffs2 command has a --with-posix-acl option).
If the ACL feature is really needed, and your system can afford it (eg: JFFS2 might use more RAM and have a longer mount time if big) maybe a small separate JFFS2 filesystem where this feature is needed could be considered. Using JFFS2 over UBI (to improve wear levelling) appears to be fine and has been studied when comparing various solutions, so this could perhaps be a workaround.
refs:
ubi.ppt (PPT)
A Comparative Analaysis Between Embedded Linux File Systems (PDF)- Linux: JFFS2 images over UBI layer
answered 1 hour ago
A.BA.B
5,2871829
add a comment |
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1 Answer
1
active
oldest
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1 Answer
1
active
oldest
votes
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oldest
votes
active
oldest
votes
No, according to the UBIFS documentation, ACL support is not implemented in UBIFS:
Extended attributes
UBIFS supports extended attributes if the corresponding configuration
option is enabled (no additional mount options are required). It
supports the user, trusted, and security name-spaces. However, access
control lists (ACL) support is not implemented.
Note, currently mkfs.ubifs ignores extended attributes and does not
write them to the target file-system image.
Likewise, the kernel source states that ACL support is not implemented.
Filesystems implementing ACL usually have an acl.c file in sources. JFFS2 has such a file and supports ACLs (eg: its mkfs.jffs2 command has a --with-posix-acl option).
If the ACL feature is really needed, and your system can afford it (eg: JFFS2 might use more RAM and have a longer mount time if big) maybe a small separate JFFS2 filesystem where this feature is needed could be considered. Using JFFS2 over UBI (to improve wear levelling) appears to be fine and has been studied when comparing various solutions, so this could perhaps be a workaround.
refs:
ubi.ppt (PPT)
A Comparative Analaysis Between Embedded Linux File Systems (PDF)- Linux: JFFS2 images over UBI layer
answered 1 hour ago
A.BA.B
5,2871829
add a comment |
No, according to the UBIFS documentation, ACL support is not implemented in UBIFS:
Extended attributes
UBIFS supports extended attributes if the corresponding configuration
option is enabled (no additional mount options are required). It
supports the user, trusted, and security name-spaces. However, access
control lists (ACL) support is not implemented.
Note, currently mkfs.ubifs ignores extended attributes and does not
write them to the target file-system image.
Likewise, the kernel source states that ACL support is not implemented.
Filesystems implementing ACL usually have an acl.c file in sources. JFFS2 has such a file and supports ACLs (eg: its mkfs.jffs2 command has a --with-posix-acl option).
If the ACL feature is really needed, and your system can afford it (eg: JFFS2 might use more RAM and have a longer mount time if big) maybe a small separate JFFS2 filesystem where this feature is needed could be considered. Using JFFS2 over UBI (to improve wear levelling) appears to be fine and has been studied when comparing various solutions, so this could perhaps be a workaround.
refs:
ubi.ppt (PPT)
A Comparative Analaysis Between Embedded Linux File Systems (PDF)- Linux: JFFS2 images over UBI layer
answered 1 hour ago
A.BA.B
5,2871829
add a comment |
No, according to the UBIFS documentation, ACL support is not implemented in UBIFS:
Extended attributes
UBIFS supports extended attributes if the corresponding configuration
option is enabled (no additional mount options are required). It
supports the user, trusted, and security name-spaces. However, access
control lists (ACL) support is not implemented.
Note, currently mkfs.ubifs ignores extended attributes and does not
write them to the target file-system image.
Likewise, the kernel source states that ACL support is not implemented.
Filesystems implementing ACL usually have an acl.c file in sources. JFFS2 has such a file and supports ACLs (eg: its mkfs.jffs2 command has a --with-posix-acl option).
If the ACL feature is really needed, and your system can afford it (eg: JFFS2 might use more RAM and have a longer mount time if big) maybe a small separate JFFS2 filesystem where this feature is needed could be considered. Using JFFS2 over UBI (to improve wear levelling) appears to be fine and has been studied when comparing various solutions, so this could perhaps be a workaround.
refs:
ubi.ppt (PPT)
A Comparative Analaysis Between Embedded Linux File Systems (PDF)- Linux: JFFS2 images over UBI layer
answered 1 hour ago
A.BA.B
5,2871829
No, according to the UBIFS documentation, ACL support is not implemented in UBIFS:
Extended attributes
UBIFS supports extended attributes if the corresponding configuration
option is enabled (no additional mount options are required). It
supports the user, trusted, and security name-spaces. However, access
control lists (ACL) support is not implemented.
Note, currently mkfs.ubifs ignores extended attributes and does not
write them to the target file-system image.
Likewise, the kernel source states that ACL support is not implemented.
Filesystems implementing ACL usually have an acl.c file in sources. JFFS2 has such a file and supports ACLs (eg: its mkfs.jffs2 command has a --with-posix-acl option).
If the ACL feature is really needed, and your system can afford it (eg: JFFS2 might use more RAM and have a longer mount time if big) maybe a small separate JFFS2 filesystem where this feature is needed could be considered. Using JFFS2 over UBI (to improve wear levelling) appears to be fine and has been studied when comparing various solutions, so this could perhaps be a workaround.
refs:
ubi.ppt (PPT)
A Comparative Analaysis Between Embedded Linux File Systems (PDF)- Linux: JFFS2 images over UBI layer
answered 1 hour ago
A.BA.B
5,2871829
edited 23 mins ago
answered 1 hour ago
A.BA.B
5,2871829
answered 1 hour ago
A.BA.B
5,2871829
answered 1 hour ago
A.BA.B
5,2871829
5,2871829
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