I know this relates to an old version of Knoppix, but after remastering the os and upgrading the kernel to 2.6.31.6 (and compiling aufs as part of that) i'm not able to remount the /ramdisk branch as read-only upon boot. Or after in init 2. If anyone can advise on this, it'd be much appreciated.
When running the script below:
/usr/sbin/knoppix-image /mnt/sda1/knoppix.img
The following line is failing:
mount -o remount,noplink,prepend:/KNOPPIX.IMG=rw,mod:/ramdisk=ro /UNIONFS
The following line succeeds fine:
mount -o remount,noplink,prepend:/KNOPPIX.IMG=rw,mod:/ramdisk=rw /UNIONFS
I get mount: /UNIONFS is busy error.
I've deleted whiteout files on /ramdisk beforehand with:
find /ramdisk -iname .wh.\*.plnk -exec rm -Rfv {} \;
I've run fuser -m -v /ramdisk and used the -k option to kill processes off.
I've also run lsof /ramdisk and killed associated processes.
Distilling the command down to the following fails:
mount -t tmpfs -o remount,ro /ramdisk /ramdisk
The following command succeeds:
mount -t tmpfs -o remount,rw /ramdisk /ramdisk
In /etc/mtab /ramdisk has mode 755 0 0.
If you can help please advise.
LSI 9305-16i SATA SAS 12Gbs RAID Controller PCIe 3.0 x8 IT-Mode 4* 8643 SATA
$229.99
Dell R630 8SFF 2.4Ghz 20-Core 128GB H730 RAID 10GB RJ-45 NIC 2x750W PSU 8x Trays
$455.04
Dell R740XD2 26LFF 3.6Ghz 8-C 384GB H730P MINI RAID 2x10G SFP+ NIC 2x1100W Rails
$2998.08
Dell R740XD2 26LFF 3.6Ghz 8-C 768GB H730P MINI RAID 2x10G SFP+ NIC 2x1100W Rails
$3538.08
Inspur LSI 9300-8i Raid Card 12Gbps HBA HDD Controller High Profile IT MODE
$15.98
LSI MegaRAID 9361-8i 12Gb PCIe 8-Port SAS/SATA RAID 1Gb w/BBU/CacheVault/License
$39.95
LSI MegaRaid 9361-8i 12Gbps SAS / SATA Raid Controller PCIe x8 3.0 Tested
$29.00
ORICO Multi Bay RAID Hard Drive Enclosure USB 3.0/ Type-C For 2.5/3.5'' HDD SSDs
$87.99
4 Bay RAID External Hard Drive Enclosure for 2.5/3.5" SATA HDD/SSD
$79.99
G TECHNOLOGY G RAID 0G04228 2-Bay Thunderbolt 2 RAID Array W/Power Supply
$99.99