how to read reiserfs on 15.3? What to do with "old" backups?
I know reiserfs was removed from 15.3. Still I have many TB external disks with Reiserfs (encrypted). I can't read them right now. First question: How can I read those backups? libreiserfscore0 and reiserfs are installed, but plugging such a disk leads to a message "unknown file system". What else do I need to install? Second question: What do I do with those encrypted Reiserfs backups? Do I really have to copy all that tremendous amount of data to other disks, newly format the original one, and copy back? (I have a laptop with 15.2 where I still can read them) Is there another way? Copying all those TB would take me about a week, I guess... Thanks for any ideas. Daniel -- Daniel Bauer photographer Basel Málaga https://www.patreon.com/danielbauer https://www.daniel-bauer.com
On 2022-04-08 8:53 a.m., Daniel Bauer wrote:
I know reiserfs was removed from 15.3. Still I have many TB external disks with Reiserfs (encrypted). I can't read them right now.
First question:
How can I read those backups?
Perhaps you could boot a live older version from USB stick.
Daniel Bauer wrote:
I know reiserfs was removed from 15.3. Still I have many TB external disks with Reiserfs (encrypted). I can't read them right now.
First question:
How can I read those backups?
libreiserfscore0 and reiserfs are installed, but plugging such a disk leads to a message "unknown file system".
If reiserfs is just blacklisted, try "modprobe reiserfs", if the module is available that should work. -- Per Jessen, Zürich (17.1°C)
Am 08.04.22 um 15:05 schrieb Per Jessen:
Daniel Bauer wrote:
I know reiserfs was removed from 15.3. Still I have many TB external disks with Reiserfs (encrypted). I can't read them right now.
First question:
How can I read those backups?
libreiserfscore0 and reiserfs are installed, but plugging such a disk leads to a message "unknown file system".
If reiserfs is just blacklisted, try "modprobe reiserfs", if the module is available that should work.
modprobe: FATAL: Module reiserfs not found in directory /lib/modules/5.3.18-150300.59.60-preempt When I search in Yast for "reiserfs" there are many packets. The two mentioned above are installed but there are many others and I guess I need one/some of them. But which one(s)? -- Daniel Bauer photographer Basel Málaga https://www.patreon.com/danielbauer https://www.daniel-bauer.com
Daniel Bauer wrote:
Am 08.04.22 um 15:05 schrieb Per Jessen:
Daniel Bauer wrote:
I know reiserfs was removed from 15.3. Still I have many TB external disks with Reiserfs (encrypted). I can't read them right now.
First question:
How can I read those backups?
libreiserfscore0 and reiserfs are installed, but plugging such a disk leads to a message "unknown file system".
If reiserfs is just blacklisted, try "modprobe reiserfs", if the module is available that should work.
modprobe: FATAL: Module reiserfs not found in directory /lib/modules/5.3.18-150300.59.60-preempt
When I search in Yast for "reiserfs" there are many packets. The two mentioned above are installed but there are many others and I guess I need one/some of them. But which one(s)?
Bad news I'm afraid - see my previous posting, 2 seconds ago. I was not aware reiserfs had been completely removed. I think your only option is to find reiserfs in the build service - maybe here: https://software.opensuse.org/package/reiserfs-kmp-64kb -- Per Jessen, Zürich (17.1°C)
On 2022-04-08 15:30, Per Jessen wrote:
Daniel Bauer wrote:
Am 08.04.22 um 15:05 schrieb Per Jessen:
Daniel Bauer wrote:
I know reiserfs was removed from 15.3. Still I have many TB external disks with Reiserfs (encrypted). I can't read them right now.
First question:
How can I read those backups?
libreiserfscore0 and reiserfs are installed, but plugging such a disk leads to a message "unknown file system".
If reiserfs is just blacklisted, try "modprobe reiserfs", if the module is available that should work.
modprobe: FATAL: Module reiserfs not found in directory /lib/modules/5.3.18-150300.59.60-preempt
When I search in Yast for "reiserfs" there are many packets. The two mentioned above are installed but there are many others and I guess I need one/some of them. But which one(s)?
Bad news I'm afraid - see my previous posting, 2 seconds ago. I was not aware reiserfs had been completely removed. I think your only option is to find reiserfs in the build service - maybe here:
I posted about it last Decembre, you participated in the thread :-p Archived-At: https://lists.opensuse.org/archives/list/users@lists.opensuse.org/message/CQ...
No, read my post of just few minutes ago. You have to install: libreiserfscore0-3... libreiserfs-0... reiserfs-3... -- Cheers / Saludos, Carlos E. R. (from 15.3 x86_64 at Telcontar)
Per Jessen wrote:
Daniel Bauer wrote:
I know reiserfs was removed from 15.3. Still I have many TB external disks with Reiserfs (encrypted). I can't read them right now.
First question:
How can I read those backups?
libreiserfscore0 and reiserfs are installed, but plugging such a disk leads to a message "unknown file system".
If reiserfs is just blacklisted, try "modprobe reiserfs", if the module is available that should work.
I thought maybe reiserfs would be in kernel-default-extra or kernel-default-optional, but I don't see it. Hmm, according to the release-notes, reiserfs is completely gone :-( https://doc.opensuse.org/release-notes/x86_64/openSUSE/Leap/15.3/ See section 3.2.1. -- Per Jessen, Zürich (17.0°C) http://www.dns24.ch/ - your free DNS host, made in Switzerland.
Le 08/04/2022 à 15:27, Per Jessen a écrit :
Hmm, according to the release-notes, reiserfs is completely gone :-( https://doc.opensuse.org/release-notes/x86_64/openSUSE/Leap/15.3/ See section 3.2.1.
may be: https://btrfs.wiki.kernel.org/index.php/Conversion_from_Ext3/4_and_ReiserFS jdd -- http://dodin.org http://valeriedodin.com
On Fri, 8 Apr 2022 15:36:17 +0200
"jdd@dodin.org"
Le 08/04/2022 à 15:27, Per Jessen a écrit :
Hmm, according to the release-notes, reiserfs is completely gone :-( https://doc.opensuse.org/release-notes/x86_64/openSUSE/Leap/15.3/ See section 3.2.1.
may be:
https://btrfs.wiki.kernel.org/index.php/Conversion_from_Ext3/4_and_ReiserFS
Hey, that's excellent! Thanks for posting the link :)
jdd
On 2022-04-08 14:53, Daniel Bauer wrote:
I know reiserfs was removed from 15.3. Still I have many TB external disks with Reiserfs (encrypted). I can't read them right now.
First question:
How can I read those backups?
libreiserfscore0 and reiserfs are installed, but plugging such a disk leads to a message "unknown file system". What else do I need to install?
Second question:
What do I do with those encrypted Reiserfs backups? Do I really have to copy all that tremendous amount of data to other disks, newly format the original one, and copy back? (I have a laptop with 15.2 where I still can read them)
Is there another way? Copying all those TB would take me about a week, I guess...
Thanks for any ideas.
Daniel
You have to install: libreiserfscore0-3... libreiserfs-0... reiserfs-3... Telcontar:~ # rpm -qa | grep -i reiserfs reiserfs-3.6.27-2.24.x86_64 libreiserfs-0_3-0-0.3.0.5-1.30.x86_64 libreiserfscore0-3.6.27-2.24.x86_64 Telcontar:~ # That should be enough to mount in read-only mode. To have read access, create file "/etc/modprobe.d/50-reiserfs.conf", with this line: options reiserfs allow_unsupported=1 The release notes do not document this (yes, I wrote a bugzilla). It even recommends to migrate to btrfs, which can be a mistake if the old reiserfs had millions of small files. https://doc.opensuse.org/release-notes/x86_64/openSUSE/Leap/15.3/ So, doing that should give you full access to your backups, but there is no assurance that even read access won't be removed at some point in the future. Then you would have to use a virtual machine. So my recommendation would be to migrate the data, but no hurry. Probably you can use bigger hard disks than in the past. By the way, I have "discovered" that there are external boxes to implement raid, via USB-3, either hardware or software (if the box supports JBOD). https://www.startech.com/en-eu/faq/raid-modes-explanation Also, I found something about external boxes with HD included already: that they can use encryption on their own, which means that if the box breaks the hard disk inside might not be readable on another box or machine. https://www.amazon.es/WD-My-Book-Externo-sobremesa/dp/B01LWVT81X/ Read the first report, by David (in Spanish). (Amazon sells it for 159,99€, PCcomponentes for 251,64, the same exact model (P/N: WDBBGB0080HBK-EESN; The comments mention some new version) I have two for backups, but after reading that comment about encryption, I'm not buying it again. These are interesting: https://www.pccomponentes.com/fantec-qb-35u31-carcasa-externa-4xhdd-ssd-35-s... Fantec QB-35U31 Carcasa Externa 4xHDD/SSD 3.5" SATA3 USB-C 187,67€ https://www.pccomponentes.com/startech-s352bu313r-caja-externa-raid-usb-31-2... Startech S352BU313R Caja Externa RAID USB 3.1 2xHDD/SSD 3.5" SATA3 121€ https://www.pccomponentes.com/i-tec-mysafe-carcasa-2x-hdd-35-sata-usb-30-usb... i-Tec MySafe Carcasa 2x HDD 3.5" SATA USB 3.0/USB-C 54,77€ https://www.pccomponentes.com/digitus-carcasa-para-disdo-duro-35-usb-30-negr... Digitus Carcasa para Disdo Duro 3.5" USB 3.0 Negra 37,93€ Don't buy this one. Why? Read opinion by KSK (No, I'm not buying an external raid box for now, can't afford it; just thinking aloud) -- Cheers / Saludos, Carlos E. R. (from 15.3 x86_64 at Telcontar)
Per Jessen wrote:
Carlos E. R. wrote:
You have to install:
libreiserfscore0-3... libreiserfs-0... reiserfs-3...
AFAICT, none of those have the kernel module though?
Ah, I overlooked it when I searching earlier - Daniel, you need to install "reiserfs-kmp-default", with the other three packages above, I think that ought to be enough. Like Carlos mentioned, you need an extra option if you want write access. -- Per Jessen, Zürich (15.3°C)
On 2022-04-08 15:57, Per Jessen wrote:
Per Jessen wrote:
Carlos E. R. wrote:
You have to install:
libreiserfscore0-3... libreiserfs-0... reiserfs-3...
AFAICT, none of those have the kernel module though?
Ah, I overlooked it when I searching earlier -
Daniel, you need to install "reiserfs-kmp-default", with the other three packages above, I think that ought to be enough.
Ah! I forgot that one. My testing was done on another machine, so it was not installed here. -- Cheers / Saludos, Carlos E. R. (from 15.3 x86_64 at Telcontar)
Am 08.04.22 um 15:38 schrieb Carlos E. R.:
On 2022-04-08 14:53, Daniel Bauer wrote:
I know reiserfs was removed from 15.3. Still I have many TB external disks with Reiserfs (encrypted). I can't read them right now.
First question:
How can I read those backups?
libreiserfscore0 and reiserfs are installed, but plugging such a disk leads to a message "unknown file system". What else do I need to install?
Second question:
What do I do with those encrypted Reiserfs backups? Do I really have to copy all that tremendous amount of data to other disks, newly format the original one, and copy back? (I have a laptop with 15.2 where I still can read them)
Is there another way? Copying all those TB would take me about a week, I guess...
Thanks for any ideas.
Daniel
You have to install:
libreiserfscore0-3... libreiserfs-0... reiserfs-3...
Telcontar:~ # rpm -qa | grep -i reiserfs reiserfs-3.6.27-2.24.x86_64 libreiserfs-0_3-0-0.3.0.5-1.30.x86_64 libreiserfscore0-3.6.27-2.24.x86_64 Telcontar:~ #
I have installed the following: venus:~ # rpm -qa | grep -i reiserfs reiserfs-3.6.27-2.24.x86_64 reiserfs-kmp-default-5.3.18-150300.59.60.4.x86_64 libreiserfs-0_3-0-0.3.0.5-1.30.x86_64 libreiserfscore0-3.6.27-2.24.x86_64
That should be enough to mount in read-only mode. To have read access, create file "/etc/modprobe.d/50-reiserfs.conf", with this line:
options reiserfs allow_unsupported=1
The release notes do not document this (yes, I wrote a bugzilla). It
I have added this. Still no success, even after reboot. Trying modprobe still gives errror: venus:~ # modprobe reiserfs modprobe: FATAL: Module reiserfs not found in directory /lib/modules/5.3.18-150300.59.60-preempt So I installed with Yast reiserfs-kmp-preempt-5.3.18-150300.59.60.4.x86_64 and ha! Read access is here :-) Can I have write access, too? What do I have to add where?
even recommends to migrate to btrfs, which can be a mistake if the old reiserfs had millions of small files.
https://doc.opensuse.org/release-notes/x86_64/openSUSE/Leap/15.3/
Yes, I've read that. Don't want to start a flame war (so I don't enter into details and no discussion about that point, please) but I don't like btrfs. So, I'll have to walk to a shop and leave some 15.3-extra-money for a large disk to copy my disks to it and from there back to the newly formated old ones. And some day maybe I can use may computer just to work with it :-) (SCNR, but those are the things that make me refrain from upgrading to newer versions: lot of work, and here even cash, just to continue with something that was working :-( - again, no flame war, please)
So, doing that should give you full access to your backups, but there is no assurance that even read access won't be removed at some point in the future. Then you would have to use a virtual machine.
So my recommendation would be to migrate the data, but no hurry. Probably you can use bigger hard disks than in the past.
-- Daniel Bauer photographer Basel Málaga https://www.patreon.com/danielbauer https://www.daniel-bauer.com -- Daniel Bauer photographer Basel Málaga https://www.patreon.com/danielbauer https://www.daniel-bauer.com
Daniel Bauer wrote:
Trying modprobe still gives errror:
venus:~ # modprobe reiserfs modprobe: FATAL: Module reiserfs not found in directory /lib/modules/5.3.18-150300.59.60-preempt
So I installed with Yast
reiserfs-kmp-preempt-5.3.18-150300.59.60.4.x86_64
and ha! Read access is here :-)
Sorry, I was wrong to to assume you had the default kernel installed.
Can I have write access, too? What do I have to add where?
Yes, Carlos explained it earlier:
To have write access, create file "/etc/modprobe.d/50-reiserfs.conf", with this line:
options reiserfs allow_unsupported=1
So, I'll have to walk to a shop and leave some 15.3-extra-money for a large disk to copy my disks to it and from there back to the newly formated old ones.
And some day maybe I can use may computer just to work with it :-)
(SCNR, but those are the things that make me refrain from upgrading to newer versions: lot of work, and here even cash, just to continue with something that was working :-( - again, no flame war, please)
fwiw, I agree with you, but you could actually opt to stick to reiserfs. It works. I myself use jfs for twenty-odd years, because it just works. -- Per Jessen, Zürich (17.1°C) http://www.dns24.ch/ - free dynamic DNS, made in Switzerland.
Am 08.04.22 um 16:45 schrieb Per Jessen:
Daniel Bauer wrote:
Trying modprobe still gives errror:
venus:~ # modprobe reiserfs modprobe: FATAL: Module reiserfs not found in directory /lib/modules/5.3.18-150300.59.60-preempt
So I installed with Yast
reiserfs-kmp-preempt-5.3.18-150300.59.60.4.x86_64
and ha! Read access is here :-)
Sorry, I was wrong to to assume you had the default kernel installed.
Can I have write access, too? What do I have to add where?
Yes, Carlos explained it earlier:
To have write access, create file "/etc/modprobe.d/50-reiserfs.conf", with this line:
options reiserfs allow_unsupported=1
Ah, ok. Actually I added this and it works but I was wrong in testing (*). So problem solved for the moment. Thanks to everybody who helped! (*) The root folder on my external disk belongs to root and only the subfolders are mine (I never changed that because everything is in a subfolder and so I don't care). I tried to add something to the root folder of that disk and as it failed I thought it was because of not having write access... in the subfolders I can write. Sso everything fine :-) -- Daniel Bauer photographer Basel Málaga https://www.patreon.com/danielbauer https://www.daniel-bauer.com
On 2022-04-08 16:32, Daniel Bauer wrote:
Am 08.04.22 um 15:38 schrieb Carlos E. R.:
On 2022-04-08 14:53, Daniel Bauer wrote:
even recommends to migrate to btrfs, which can be a mistake if the old reiserfs had millions of small files.
https://doc.opensuse.org/release-notes/x86_64/openSUSE/Leap/15.3/
Yes, I've read that. Don't want to start a flame war (so I don't enter into details and no discussion about that point, please) but I don't like btrfs.
So, I'll have to walk to a shop and leave some 15.3-extra-money for a large disk to copy my disks to it and from there back to the newly formated old ones.
And some day maybe I can use may computer just to work with it :-)
(SCNR, but those are the things that make me refrain from upgrading to newer versions: lot of work, and here even cash, just to continue with something that was working :-( - again, no flame war, please)
Well, it happens. I had to stop using NVidia and switch to AMD because the proprietary driver stopped supporting my "old" card. Yes, this is a large change for a minor upgrade, IMO it should not have been allowed on 15.3. It was not even documented till I found about it. But if you do not do the minor upgrades, when at the end comes the major upgrade to version 16.x, you will get the accumulation of all the small upgrades, plus the large upgrade of 16. Huh, careful with big disks. One large (4TB) disk died in my miniserver. I bought a larger disk (6T) for replacement. I formatted and encrypted it, then copied the data over, using an external USB-SATA dock station, then put the disk in the USB-SATA that the old (4TB) disk was using. Problem: that box did not recognize the partitions. Bought new box: same problem. Bought second new box: same problem. W....? Plugged the hard disk directly into SATA of another computer: same problem. Wow. All the USB-SATA boxes were in fact good, except the initial USB-SATA dock station. Need another large disk to migrate data and partition/format again the 6TB disk. Conclusion: format disks on real hardware, not USB-SATA converters. Conclusion 2: computing is expensive. -- Cheers / Saludos, Carlos E. R. (from 15.3 x86_64 at Telcontar)
participants (6)
-
Carlos E. R. -
Daniel Bauer -
Dave Howorth -
James Knott -
jdd＠dodin.org -
Per Jessen