8,409 reputation
11020
bio website github.com/frostschutz
location
age 32
visits member for 1 year, 7 months
seen 14 hours ago

23h
revised how to use dd to fill drive with 1's
added 3 characters in body
1d
answered LVM + LUKS partition - Is this architecture dependent or independent?
2d
comment How to optimize wget download script
Awfully high expectations for a quick&dirty solution :)
2d
comment How to optimize wget download script
@VolkerSiegel You're absolutely right about the lack of error handling, it wasn't the focus of the answer. As for the rm, I did write you start with an empty directory, so there are only HTML files in there when you run the command - if it fails, you redownload them.
Aug
19
answered how to use dd to fill drive with 1's
Aug
18
comment LUKS change encryption key
Please clarify: do you want to know how to change the master key? Doing so would require all data to be re-encrypted.
Aug
18
answered sliding window of JPGs from thousands of files
Aug
17
comment Free space showing problem in `parted` command?
en.wikipedia.org/wiki/Extended_boot_record
Aug
17
answered Free space showing problem in `parted` command?
Aug
17
comment RAIDing with LVM vs MDRAID - pros and cons?
LVM tends to be kinda effy when it comes to missing disks; so while LVM RAID is pretty much the same as mdadm RAID I still feel that mdadm is better suited for the job. But that'd be an answer based on opinions only...
Aug
16
answered How to copy to a formatted image without root privileges?
Aug
12
comment How to estimate loops/time for completion of GNU ddrescue (1.18.1) using current status?
is the disk still connected under the same device name at all? Also you should need ddrescue only if the disk has bad blocks, which would not be caused by a "cable disconnect". If you have cable problems, just try a different cable...
Aug
9
comment Can I split a disk image and run Photorec on each part individually?
Oh and I guess you might want to create a new directory for each slice, just in case photorec might be confused, try to resume, overwrite old files, ...
Aug
9
comment Can I split a disk image and run Photorec on each part individually?
Either it's so fast that it's done after a few seconds - entirely possible if your slice was small and empty - or you used the wrong settings. You want to dd a partition and make photorec search raw data w/o partitions.
Aug
9
answered Can I split a disk image and run Photorec on each part individually?
Aug
9
awarded  Nice Answer
Aug
7
revised RAID Level 5 versus Level 1
edited body
Aug
7
answered RAID Level 5 versus Level 1
Aug
7
comment Storing a keyfile in an encrypted LVM
Hmmm. It should take about one second per device you unlock. Maybe longer if there are several keyslots in use and yours is not the first slot. Although I'm not sure how well cryptsetup is able to handle keys that are in the megabyte range. Now, LVM won't let you create a smaller device (minimum PE size is usually 4MB). But with cryptsetup --align-payload you can influence how much of an offset the LUKS metadata will be using, so you can have a 4MB LV with an encrypted part that's actually just 512 byte in size.
Aug
6
comment Storing a keyfile in an encrypted LVM
Can you write it up in an answer? The key is random, or whatever you put on LogVolKey. There are no headers on /dev/mapper/... Can't help you with the insecure mode message; by default no users should be in the disk group either way, so nothing insecure about it